Pub Date : 2024-11-13DOI: 10.1016/j.inoche.2024.113535
Shuaishuai Zhang , Lin Chi , Xinan Sun , Qingwen Luo , Zhenchao Gu , Peng Sun , Lianke Zhang
The development of novel composite electrode materials is essential to fabricating supercapacitors with high specific capacitance and good stability. In this study, MnOOH nanorods adorned with CeO2 (CeMn composites) have been satisfactorily synthesized through in-situ growth of tiny CeO2 nanoparticles using hydrothermal treatment. SEM images revealed that the granular CeO2 particles are adhered to the surfaces of nanorod-shaped MnOOH. XRD analysis confirmed the CeMn composites maintain the crystal structure of MnOOH and CeO2 with high purity. The EDS elemental mapping images demonstrated that Mn, O, and Ce elements are homogenously dispersion distributed in the CeMn composites. The supercapacitive performance of the MnOOH and CeMn composites pasted onto the Ni foam was evaluated determined through electrochemical measurements. The Ce0.05Mn1 (Ce/Mn molar ratio of 0.05/1) as a supercapacitor electrode exhibited an excellent specific capacitance of 857.62 F/g at 1 A/g, which is higher than the values for the MnOOH. Moreover, the prepared Ce0.05Mn1 still could retain good cycling stability over 3000 charge/discharge cycles. This study presents a feasible route to develop high-performing supercapacitor electrode materials.
{"title":"MnOOH nanorods decorated with CeO2 nanoparticles as advanced electrode for high-performance supercapacitor","authors":"Shuaishuai Zhang , Lin Chi , Xinan Sun , Qingwen Luo , Zhenchao Gu , Peng Sun , Lianke Zhang","doi":"10.1016/j.inoche.2024.113535","DOIUrl":"10.1016/j.inoche.2024.113535","url":null,"abstract":"<div><div>The development of novel composite electrode materials is essential to fabricating supercapacitors with high specific capacitance and good stability. In this study, MnOOH nanorods adorned with CeO<sub>2</sub> (CeMn composites) have been satisfactorily synthesized through in-situ growth of tiny CeO<sub>2</sub> nanoparticles using hydrothermal treatment. SEM images revealed that the granular CeO<sub>2</sub> particles are adhered to the surfaces of nanorod-shaped MnOOH. XRD analysis confirmed the CeMn composites maintain the crystal structure of MnOOH and CeO<sub>2</sub> with high purity. The EDS elemental mapping images demonstrated that Mn, O, and Ce elements are homogenously dispersion distributed in the CeMn composites. The supercapacitive performance of the MnOOH and CeMn composites pasted onto the Ni foam was evaluated determined through electrochemical measurements. The Ce<sub>0.05</sub>Mn<sub>1</sub> (Ce/Mn molar ratio of 0.05/1) as a supercapacitor electrode exhibited an excellent specific capacitance of 857.62 F/g at 1 A/g, which is higher than the values for the MnOOH. Moreover, the prepared Ce<sub>0.05</sub>Mn<sub>1</sub> still could retain good cycling stability over 3000 charge/discharge cycles. This study presents a feasible route to develop high-performing supercapacitor electrode materials.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"170 ","pages":"Article 113535"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-13DOI: 10.1016/j.inoche.2024.113536
Abdu Saeed , Reem Alwafi , Maha Aiiad Alenizi , F.A. Al-Marhaby , Asmaa Al-Rasheedi , G.M. Asnag , Ahmed N. Al-Hakimi , S. Ghalab , S.A. Al-Ghamdi
This research presents a novel eco-friendly polymer electrolyte composite designed for dielectric capacitors, developed by combining hydroxypropyl methylcellulose (HPMC) and carboxymethyl cellulose (CMC) with varying concentrations of zinc acetate (0.0, 1.5, 3.0, 6.0, and 12.0 wt%). The addition of zinc acetate significantly improves the structural, optical, and dielectric properties of the HPMC/CMC composites. Structural analysis using XRD reveals that increasing zinc acetate content reduces the crystallinity, promoting an amorphous phase that enhances ionic conductivity. FTIR spectra display shifts in vibrational bands, confirming strong interactions between zinc acetate and the polymer matrix. UV–Vis results demonstrate a reduction in the optical bandgap, indicating improved charge transfer properties. Electrical performance assessments show that the composite containing 12 wt% zinc acetate exhibited the highest AC conductivity and maintained a stable dielectric constant across a wide frequency range (up to 10 kHz). The dielectric loss tangent values confirm reduced energy dissipation with the addition of zinc acetate. Furthermore, the fabricated capacitors demonstrated enhanced capacitance, stable leakage current, and superior discharge energy density, particularly in the composite with 12 wt% zinc acetate. These findings underscore the potential of the HPMC/CMC–zinc acetate composites as high-performance materials for dielectric capacitors in energy storage applications.
{"title":"Influence of zinc acetate on HPMC/CMC polymer blend: Investigation of their composites’ structural, optical, and dielectric properties for dielectric capacitor applications","authors":"Abdu Saeed , Reem Alwafi , Maha Aiiad Alenizi , F.A. Al-Marhaby , Asmaa Al-Rasheedi , G.M. Asnag , Ahmed N. Al-Hakimi , S. Ghalab , S.A. Al-Ghamdi","doi":"10.1016/j.inoche.2024.113536","DOIUrl":"10.1016/j.inoche.2024.113536","url":null,"abstract":"<div><div>This research presents a novel eco-friendly polymer electrolyte composite designed for dielectric capacitors, developed by combining hydroxypropyl methylcellulose (HPMC) and carboxymethyl cellulose (CMC) with varying concentrations of zinc acetate (0.0, 1.5, 3.0, 6.0, and 12.0 wt%). The addition of zinc acetate significantly improves the structural, optical, and dielectric properties of the HPMC/CMC composites. Structural analysis using XRD reveals that increasing zinc acetate content reduces the crystallinity, promoting an amorphous phase that enhances ionic conductivity. FTIR spectra display shifts in vibrational bands, confirming strong interactions between zinc acetate and the polymer matrix. UV–Vis results demonstrate a reduction in the optical bandgap, indicating improved charge transfer properties. Electrical performance assessments show that the composite containing 12 wt% zinc acetate exhibited the highest AC conductivity and maintained a stable dielectric constant across a wide frequency range (up to 10 kHz). The dielectric loss tangent values confirm reduced energy dissipation with the addition of zinc acetate. Furthermore, the fabricated capacitors demonstrated enhanced capacitance, stable leakage current, and superior discharge energy density, particularly in the composite with 12 wt% zinc acetate. These findings underscore the potential of the HPMC/CMC–zinc acetate composites as high-performance materials for dielectric capacitors in energy storage applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113536"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-13DOI: 10.1016/j.inoche.2024.113517
Alaa H. Falemban , Ibrahim Abdel Aziz Ibrahim , Ghazi A. Bamagous , Abdullah R. Alzahrani , Imran Shahid , Naiyer Shahzad , Samer Hasan Hussein-Al-Ali , Palanisamy Arulselvan , Indumathi Thangavelu
Colon cancer is a deadly disease while pathogens such as Klebsiella pneumoniae (K. pneumoniae), Shigella dysenteriae (S. dysenteriae), Bacillus subtilis (B. subtilis), Staphylococcus aureus (S. aureus), and Candida albicans (C. albicans) are serious threat to the human health due to their persistent nature and resistant to conventional drugs. This study aims to develop NiO nanoparticles via single one pot chemical approach and to modifying them with natural molecules carboxymethyl cellulose and D-carvone to enhance antioxidant, anticancer and antibacterial activity. The NiO and NiO-CMC-Dcar exhibit fcc structure confirmed by XRD. The band gap values were found be 4.15 eV for NiO and 4.23 eV for NiO-CMC-Dcar nanocomposite. DLS study confirmed that the mean particles diameter of NiO and NiO-CMC-Dcar were 154.1 nm and 130.3 nm respectively. The TEM and SEM analysis confirmed that both NiO and NiO-CMC-Dcar samples were roughly spherical. PL emission spectra of NiO-CMC- Dcar nanoparticles at 426 nm and 506 nm indicate the electronic structural modification due to incorporation of CMC and Dcar molecules in to NiO materials. The green emission observed at 506 nm is due to oxygen vacancy that can be correlated to production of more reactive oxygen species (ROS) to kill microorganism. The experimental results show that the NiO-CMC- Dcar nanoparticles exhibit enhanced antimicrobial, anticancer and antioxidant activity when compared to NiO alone.
{"title":"Fabrication of NiO nanoparticles modified with carboxymethyl cellulose and D-carvone for enhanced antimicrobial, antioxidant and anti-cancer activities","authors":"Alaa H. Falemban , Ibrahim Abdel Aziz Ibrahim , Ghazi A. Bamagous , Abdullah R. Alzahrani , Imran Shahid , Naiyer Shahzad , Samer Hasan Hussein-Al-Ali , Palanisamy Arulselvan , Indumathi Thangavelu","doi":"10.1016/j.inoche.2024.113517","DOIUrl":"10.1016/j.inoche.2024.113517","url":null,"abstract":"<div><div>Colon cancer is a deadly disease while pathogens such as <em>Klebsiella pneumoniae (K. pneumoniae), Shigella dysenteriae (S. dysenteriae), Bacillus subtilis (B. subtilis), Staphylococcus aureus (S. aureus),</em> and <em>Candida albicans (C. albicans)</em> are serious threat to the human health due to their persistent nature and resistant to conventional drugs. This study aims to develop NiO nanoparticles via single one pot chemical approach and to modifying them with natural molecules carboxymethyl cellulose and D-carvone to enhance antioxidant, anticancer and antibacterial activity. The NiO and NiO-CMC-Dcar exhibit fcc structure confirmed by XRD. The band gap values were found be 4.15 eV for NiO and 4.23 eV for NiO-CMC-Dcar nanocomposite. DLS study confirmed that the mean particles diameter of NiO and NiO-CMC-Dcar were 154.1 nm and 130.3 nm respectively. The TEM and SEM analysis confirmed that both NiO and NiO-CMC-Dcar samples were roughly spherical. PL emission spectra of NiO-CMC- Dcar nanoparticles at 426 nm and 506 nm indicate the electronic structural modification due to incorporation of CMC and Dcar molecules in to NiO materials. The green emission observed at 506 nm is due to oxygen vacancy that can be correlated to production of more reactive oxygen species (ROS) to kill microorganism. The experimental results show that the NiO-CMC- Dcar nanoparticles exhibit enhanced antimicrobial, anticancer and antioxidant activity when compared to NiO alone.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113517"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.inoche.2024.113545
Silpa Sunil, Badal Kumar Mandal
The development of extensive dye pollution in the water ecosystem seriously endangers the health of the living organism. For effectively eradicating dye contaminants from water bodies, photocatalysis is considered an effective, energy-consumption, inexpensive disinfection technique. As an alternative to conventional metal-based catalysts, heterogeneous metal-free photocatalysts are more sustainable and kinder to the environment. Here, we reported the simple hydrothermal chemical production of Carbon Quantum dots (CQD)-doped graphitic carbon nitride (GCN). Analytical instruments such as XRD, SEM, FE-SEM, HR-TEM, EDX, FT-IR, the surface area of BET analysis, photoluminescence, and UV–vis spectroscopy, zeta potential were used to characterize the as-prepared CQD doped GCN (CDCN). The degradation studies reveal that the CDCN catalyst displays the highest rate of degradation performance than pure GCN. Within 60 min, it shows 96 % degradation toward indigo Carmine (IC) and 93 % decomposition towards carmoisine dye (CM). Significant e−/h+ separation, an increased surface area, and a high redox potential capacity to induce charge bears may all contribute to the CDCN catalyst’s enhanced photocatalytic degradation efficiency. The efficiency of the photocatalytic process was optimized by studying and altering many variables. These include Dye concentration, catalyst concentration, and variation of the pH solution were some of these. The nanocomposite exhibited excellent stability after three successive runs of the photocatalytic procedure. According to the kinetics analysis results indicate that the photocatalytic decomposition of Indigo Carmine (IC) and carmoisine (CM) dye follows pseudo-first-order kinetics. For better photodegradation performance, a potential photocatalytic method employing several pairs of electron-hole acceptor scavengers has been put forth. Based on the positions of the band gap and the result of the characterization, a feasible mechanism pathway for charge carriers was also presented.
{"title":"Facile synthesis of CQD/g-C3N4 as a highly effective metal-free photocatalyst for the degradation of carmoisine and indigo carmine dye","authors":"Silpa Sunil, Badal Kumar Mandal","doi":"10.1016/j.inoche.2024.113545","DOIUrl":"10.1016/j.inoche.2024.113545","url":null,"abstract":"<div><div>The development of extensive dye pollution in the water ecosystem seriously endangers the health of the living organism. For effectively eradicating dye<!--> <!-->contaminants from water bodies, photocatalysis is considered<!--> <!-->an effective, energy-consumption, inexpensive disinfection technique. As an alternative to conventional metal-based catalysts, heterogeneous metal-free photocatalysts are more sustainable and kinder to the environment. Here, we reported the simple<!--> <!-->hydrothermal<!--> <!-->chemical production of Carbon Quantum dots (CQD)-doped graphitic carbon nitride<!--> <!-->(GCN). Analytical instruments such as XRD, SEM, FE-SEM, HR-TEM, EDX, FT-IR, the<!--> <!-->surface area of BET analysis, photoluminescence, and UV–vis spectroscopy, zeta potential<!--> <!-->were used to characterize the as-prepared CQD doped GCN (CDCN). The degradation studies reveal that the CDCN catalyst displays the highest rate of degradation performance than pure GCN. Within 60 min, it shows 96 % degradation toward indigo Carmine (IC) and 93 % decomposition towards carmoisine dye (CM). Significant e<sup>−</sup>/h<sup>+</sup> separation, an increased surface area, and a high redox potential capacity to induce charge bears may all contribute to the CDCN catalyst’s enhanced photocatalytic degradation efficiency. The efficiency of the photocatalytic process was optimized by studying and altering many variables. These include Dye concentration, catalyst concentration, and variation of the pH solution were some of these. The nanocomposite exhibited excellent stability after three successive runs of the photocatalytic procedure. According to the kinetics analysis results indicate that the photocatalytic decomposition of Indigo Carmine (IC) and carmoisine (CM) dye follows pseudo-first-order kinetics. For better photodegradation performance, a potential photocatalytic method employing several pairs of electron-hole acceptor scavengers<!--> <!-->has been put forth. Based on the positions<!--> <!-->of the band gap and the result of the characterization, a feasible mechanism<!--> <!-->pathway for charge carriers was also presented.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113545"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.inoche.2024.113524
I.U. Nkole , M. Imam , D.E. Arthur
Gaining an understanding of the glucose oxidation product (glyoxal) interaction with the metal–organic complex in a biological environment is pivotal to its usage. Thus, the glyoxal (Gyx) oxidation with Mo-oxime complex (MC) is studied with the spectrophotometric method, following a pseudo-phase approach. The result highlights the inclusion of hydrolysis, ion catalysis, the neutral primary salt effect, and radical generation as the essential factors in Gyx oxidation, with the exclusion of intermediate species formation. The hydrolysis of Gxy is observed to actively engage MC without charge inhibition as charge-neutral reacting species are involved, thus, implicating neutral primary salt effect where the variation of ionic strength of the system keeps the redox rate unchanged. The involvement of charge-neutral specie at the rate controlling step encouraged electrostatic attraction when Mg2+ ion additive is incorporated into the system, leading to ion catalysis. The generation of free radical from Gxy aids the emergence of formic acid. The zero intercept of Michaelis–Menten type plot and the non-appreciable shift in the maximum absorption wavelength of the reaction system and MC rule-out the presence of intermediate species. The contribution of thermodynamic enthalpy is instrumental in the redox process, leading to the formic acid product. The inclusion of benzalkonium chloride (BZC) hastens the Gxy oxidation, which is supported by Raghavan and Srinivasan’s model.
{"title":"Oxidation of glyoxal with the Mo-oxime complex in a benzalkonium chloride interface: Raghavan and Srinivasan kinetic model","authors":"I.U. Nkole , M. Imam , D.E. Arthur","doi":"10.1016/j.inoche.2024.113524","DOIUrl":"10.1016/j.inoche.2024.113524","url":null,"abstract":"<div><div>Gaining an understanding of the glucose oxidation product (glyoxal) interaction with the metal–organic complex in a biological environment is pivotal to its usage. Thus, the glyoxal (Gyx) oxidation with Mo-oxime complex (MC) is studied with the spectrophotometric method, following a pseudo-phase approach. The result highlights the inclusion of hydrolysis, ion catalysis, the neutral primary salt effect, and radical generation as the essential factors in Gyx oxidation, with the exclusion of intermediate species formation. The hydrolysis of Gxy is observed to actively engage MC without charge inhibition as charge-neutral reacting species are involved, thus, implicating neutral primary salt effect where the variation of ionic strength of the system keeps the redox rate unchanged. The involvement of charge-neutral specie at the rate controlling step encouraged electrostatic attraction when Mg<sup>2+</sup> ion additive is incorporated into the system, leading to ion catalysis. The generation of free radical from Gxy aids the emergence of formic acid. The zero intercept of Michaelis–Menten type plot and the non-appreciable shift in the maximum absorption wavelength of the reaction system and MC rule-out the presence of intermediate species. The contribution of thermodynamic enthalpy is instrumental in the redox process, leading to the formic acid product. The inclusion of benzalkonium chloride (BZC) hastens the Gxy oxidation, which is supported by Raghavan and Srinivasan’s model.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"170 ","pages":"Article 113524"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lead-free perovskite-type materials, renowned for their easy processing and tunable bandgaps, have emerged as a cost-effective alternative for fabricating high-efficiency tandem solar cells. Utilizing density functional theory (DFT) combined with the full-potential linearized augmented plane wave (FP-LAPW) method and the modified Becke-Johnson exchange potential (TB-mBJ), this study investigates the potential of CaBS (B = Zr, Hf, and Sn) compounds as promising absorbers for next-generation tandem applications. Our results demonstrate that CaBS compounds exhibit semiconducting properties with direct bandgaps. This study investigates the unique properties of CaBS perovskites, revealing their potential to enhance the efficiency of next-generation photovoltaic devices. Our findings demonstrate that CaZrS exhibits a remarkable Seebeck coefficient of up to 3200 V/K, indicating superior p-type conduction and enhanced thermoelectric efficiency. Furthermore, the direct bandgaps and ambipolar conductive behavior of these materials position them as strong candidates for photovoltaic applications. Notably, a four-terminal tandem solar cell configuration comprising CaZrS and CaSnS achieves a peak conversion efficiency of 55.5% at an absorber thickness of 500 nm, surpassing the traditional Shockley–Queisser limit. These results underscore the promising capabilities of CaBS perovskites in advancing renewable energy technologies, paving the way for innovative designs in solar energy solutions. This investigation lends empirical credence to the optimization of tandem cell designs, thus catalyzing advancements in next-generation photovoltaic technologies.
{"title":"First principle insight of CaBS3 (B = Sn, Zr and Hf) chalcogenide perovskite as eco-friendly material for photovoltaics","authors":"Rachid Chami , M’hammed Adnane Kinani , Lekdadri Abdelmajid , Mohammed Chafi , Yamina Mir , Mimoun Zazoui , E.K. Hlil","doi":"10.1016/j.inoche.2024.113465","DOIUrl":"10.1016/j.inoche.2024.113465","url":null,"abstract":"<div><div>Lead-free perovskite-type materials, renowned for their easy processing and tunable bandgaps, have emerged as a cost-effective alternative for fabricating high-efficiency tandem solar cells. Utilizing density functional theory (DFT) combined with the full-potential linearized augmented plane wave (FP-LAPW) method and the modified Becke-Johnson exchange potential (TB-mBJ), this study investigates the potential of CaBS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> (B = Zr, Hf, and Sn) compounds as promising absorbers for next-generation tandem applications. Our results demonstrate that CaBS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> compounds exhibit semiconducting properties with direct bandgaps. This study investigates the unique properties of CaBS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> perovskites, revealing their potential to enhance the efficiency of next-generation photovoltaic devices. Our findings demonstrate that CaZrS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> exhibits a remarkable Seebeck coefficient of up to 3200 <span><math><mi>μ</mi></math></span>V/K, indicating superior p-type conduction and enhanced thermoelectric efficiency. Furthermore, the direct bandgaps and ambipolar conductive behavior of these materials position them as strong candidates for photovoltaic applications. Notably, a four-terminal tandem solar cell configuration comprising CaZrS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> and CaSnS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> achieves a peak conversion efficiency of 55.5% at an absorber thickness of 500 nm, surpassing the traditional Shockley–Queisser limit. These results underscore the promising capabilities of CaBS<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> perovskites in advancing renewable energy technologies, paving the way for innovative designs in solar energy solutions. This investigation lends empirical credence to the optimization of tandem cell designs, thus catalyzing advancements in next-generation photovoltaic technologies.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113465"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.inoche.2024.113522
Sehrish Zafar , Amarah Sultan Rana , Salah Ud-Din Khan , Sajjad Haider , Shahab Ud-Din Khan , Adnan Haider , Saif Ur Rehman , Mahrukh Ali , Misbah Nazeer , Muhammad Faizan Nazar
Water contamination by various species, including heavy metals, dust, dyes, pesticides, pathogens, and organic and inorganic substances, poses a stern hazard to health of the human and environment. Various conventional methods for decontamination and improving water quality are practical; most are however, inadequate, less effective, time-consuming and expensive. Photocatalytic membranes (PMs) technology with light-sensitive functionalities can be efficiently used to remove noxious pollutants from aqueous systems, thereby reducing operational costs and environmental impact. This review focuses the fundamentals of PM function, current developments in material synthesis, and the potential of green synthetic methods to develop sustainable PMs for sustainable future. Because of their high efficiency and minimal environmental impact, these technologies offer a promising solution to the pressing need for efficient water filtration in urban and industrial settings.
{"title":"Photocatalytic membranes as water decontamination agents","authors":"Sehrish Zafar , Amarah Sultan Rana , Salah Ud-Din Khan , Sajjad Haider , Shahab Ud-Din Khan , Adnan Haider , Saif Ur Rehman , Mahrukh Ali , Misbah Nazeer , Muhammad Faizan Nazar","doi":"10.1016/j.inoche.2024.113522","DOIUrl":"10.1016/j.inoche.2024.113522","url":null,"abstract":"<div><div>Water contamination by various species, including heavy metals, dust, dyes, pesticides, pathogens, and organic and inorganic substances, poses a stern hazard to health of the human and environment. Various conventional methods for decontamination and improving water quality are practical; most are however, inadequate, less effective, time-consuming and expensive. Photocatalytic membranes (PMs) technology with light-sensitive functionalities can be efficiently used to remove noxious pollutants from aqueous systems, thereby reducing operational costs and environmental impact. This review focuses the fundamentals of PM function, current developments in material synthesis, and the potential of green synthetic methods<!--> <!-->to develop sustainable PMs for sustainable future. Because of their high efficiency and minimal environmental impact, these technologies offer a promising solution to the pressing need for efficient water filtration in urban and industrial settings.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"170 ","pages":"Article 113522"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.inoche.2024.113534
K. Prabakaran , T. Kavinkumar , P. Muhammed Shafi , L.R. Shobin , Ramalinga Viswanathan Mangalaraja , Vijayabhaskara Rao Bhaviripudi , Carolina Venegas Abarzúa , Arun Thirumurugan
The precise design and surface modification of electrode materials are crucial challenges for advancing the supercapacitor technology. In this study, we report a straightforward two-step process for the synthesis of a cobalt ferrite (CoFe2O4)/carbon hetero nanostructure. The CoFe2O4 nanoparticles were first synthesized using a simple chemical oxidation method, followed by carbon modification using glucose. The modified samples were calcined at 400 and 600 °C for 4 h in N2 atmosphere to optimize the structural and electrochemical properties. The increase in the grain size of carbon modified cobalt ferrite magnetic nanoparticles (MNPs) was observed from 22 to 28 nm with post annealing temperature. The presence of carbon was confirmed by the FTIR spectroscopy, FESEM and TEM analyses. The carbon decoration on the cobalt ferrite partially showed a core–shell like morphology. The saturation magnetization of bare cobalt ferrite was observed to be 76 emu/g and the same was decreased by the surface modification with carbon. A high specific capacitance of 323 F/g was observed for the carbon-modified cobalt ferrite MNPs annealed at 600 °C. The electrochemical impedance spectroscopy (EIS) analysis demonstrated that the charge-transfer resistance (Rct) decreased significantly in the carbon-modified CoFe2O4 MNPs, particularly for the sample annealed at 600 °C, with an Rct value of 17 Ω. The carbon layer effectively enhanced conductivity and reduced the electrode/electrolyte interface, led to the improved electrochemical performance, as reflected in the enhanced specific capacitance. An improved capacitance retention of 84 % was achieved in the case of carbon-modified cobalt ferrite MNPs based electrode even after 4000 cycles. The study suggested that the prepared carbon-modified cobalt ferrite MNPs stand in the limelight as a better candidate electrode material for the electrochemical applications.
{"title":"Synthesis and surface engineering of carbon-modified cobalt ferrite for advanced supercapacitor electrode materials","authors":"K. Prabakaran , T. Kavinkumar , P. Muhammed Shafi , L.R. Shobin , Ramalinga Viswanathan Mangalaraja , Vijayabhaskara Rao Bhaviripudi , Carolina Venegas Abarzúa , Arun Thirumurugan","doi":"10.1016/j.inoche.2024.113534","DOIUrl":"10.1016/j.inoche.2024.113534","url":null,"abstract":"<div><div>The precise design and surface modification of electrode materials are crucial challenges for advancing the supercapacitor technology. In this study, we report a straightforward two-step process for the synthesis of a cobalt ferrite (CoFe<sub>2</sub>O<sub>4</sub>)/carbon hetero nanostructure. The CoFe<sub>2</sub>O<sub>4</sub> nanoparticles were first synthesized using a simple chemical oxidation method, followed by carbon modification using glucose. The modified samples were calcined at 400 and 600 °C for 4 h in N<sub>2</sub> atmosphere to optimize the structural and electrochemical properties. The increase in the grain size of carbon modified cobalt ferrite magnetic nanoparticles (MNPs) was observed from 22 to 28 nm with post annealing temperature. The presence of carbon was confirmed by the FTIR spectroscopy, FESEM and TEM analyses. The carbon decoration on the cobalt ferrite partially showed a core–shell like morphology. The saturation magnetization of bare cobalt ferrite was observed to be 76 emu/g and the same was decreased by the surface modification with carbon. A high specific capacitance of 323 F/g was observed for the carbon-modified cobalt ferrite MNPs annealed at 600 °C. The electrochemical impedance spectroscopy (EIS) analysis demonstrated that the charge-transfer resistance (R<sub>ct</sub>) decreased significantly in the carbon-modified CoFe<sub>2</sub>O<sub>4</sub> MNPs, particularly for the sample annealed at 600 °C, with an R<sub>ct</sub> value of 17 Ω. The carbon layer effectively enhanced conductivity and reduced the electrode/electrolyte interface, led to the improved electrochemical performance, as reflected in the enhanced specific capacitance. An improved capacitance retention of 84 % was achieved in the case of carbon-modified cobalt ferrite MNPs based electrode even after 4000 cycles. The study suggested that the prepared carbon-modified cobalt ferrite MNPs stand in the limelight as a better candidate electrode material for the electrochemical applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113534"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.inoche.2024.113541
Nidal M. Hussein , Tariq J. Al-Musawi , Nitin Kumar , Rohit Sharma , Adil Ismael Mohammed , Indu Sharma , Teku Kalyani , M. Dehghanipour , Amanpreet Sandhu
Organic micropollutants are considered as dangerous wastes to aquatic environments, which threaten the life of living beings. The efficacious removal of these pollutants from surrounding aquatic ecosystems has been taken into consideration in water refinery technologies. In this study, a bio-nanocomposite was developed through a green approach involving self-assembly of reduced graphene oxide (rGO) with zinc [5,10,15,20-tetrakis(2,6-dichlorophenyl) porphyrin] complex (ZnPor) and TiO2 nanoparticles using reflux method. This organic/inorganic hybrid material was characterized using FE-SEM, XRD, EIS, RAMAN, and UV–Vis spectroscopy. The band-gap energies were found to range from 3.32 eV for GO to 2.35 eV for ZnPor/rGO/TiO2, indicating the composites behave as semiconductor materials. The photocatalytic activity was highest for the ZnPor/rGO/TiO2 composite based on 200 mL ZnPor addition during the synthesis process, achieving 98.1 % degradation of the model pollutant ethylparaben after only 20 min of UV treatment. The rGO facilitates electron-hole separation and transportation, while the ZnPor broadens the light absorption range and improves charge transfer. The TiO2 nanoparticles provide the primary photocatalytic sites. These synergistic effects enhanced the photocatalytic activity of the ZnPor/rGO/TiO2 system. This green-synthesized, eco-friendly, and highly efficient photocatalyst shows great promise for the removal of organic micropollutants from wastewater.
{"title":"The first and cost-effective nano-biocomposite ZnPor/rGO/TiO2 as efficient UV photocatalysts for ethylparaben decomposition","authors":"Nidal M. Hussein , Tariq J. Al-Musawi , Nitin Kumar , Rohit Sharma , Adil Ismael Mohammed , Indu Sharma , Teku Kalyani , M. Dehghanipour , Amanpreet Sandhu","doi":"10.1016/j.inoche.2024.113541","DOIUrl":"10.1016/j.inoche.2024.113541","url":null,"abstract":"<div><div>Organic micropollutants are considered as dangerous wastes to aquatic environments, which threaten the life of living beings. The efficacious removal of these pollutants from surrounding aquatic ecosystems has been taken into consideration in water refinery technologies. In this study, a bio-nanocomposite was developed through a green approach involving self-assembly of reduced graphene oxide (rGO) with zinc [5,10,15,20-tetrakis(2,6-dichlorophenyl) porphyrin] complex (ZnPor) and TiO<sub>2</sub> nanoparticles using reflux method. This organic/inorganic hybrid material was characterized using FE-SEM, XRD, EIS, RAMAN, and UV–Vis spectroscopy. The band-gap energies were found to range from 3.32 eV for GO to 2.35 eV for ZnPor/rGO/TiO<sub>2</sub>, indicating the composites behave as semiconductor materials. The photocatalytic activity was highest for the ZnPor/rGO/TiO<sub>2</sub> composite based on 200 mL ZnPor addition during the synthesis process, achieving 98.1 % degradation of the model pollutant ethylparaben after only 20 min of UV treatment. The rGO facilitates electron-hole separation and transportation, while the ZnPor broadens the light absorption range and improves charge transfer. The TiO<sub>2</sub> nanoparticles provide the primary photocatalytic sites. These synergistic effects enhanced the photocatalytic activity of the ZnPor/rGO/TiO<sub>2</sub> system. This green-synthesized, eco-friendly, and highly efficient photocatalyst shows great promise for the removal of organic micropollutants from wastewater.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"170 ","pages":"Article 113541"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cotton fibres, a natural form of cellulose, have played a pivotal role in developing wearable energy storage devices due to their wearability, integrability, environmental friendliness, and cost-effectiveness. Derived from plant cellulose, cotton has garnered significant attention for its potential in lightweight and wearable electronic devices, particularly energy storage systems, to meet the growing demand for wearable e-textiles. The combination of wearability, environmental sustainability, affordability, and superior electrochemical performance dramatically enhances the potential of cotton-based energy storage devices. The unique structure of cotton provides a large surface area, creating an ideal platform for loading active materials, facilitating charge/ion transfer, and promoting efficient ion migration. These characteristics make cotton and cellulose-based fibres highly effective in fabricating one-dimensional (1D) supercapacitors, demonstrating excellent electrochemical, mechanical, and wearable performance.
However, the intrinsic electrical insulation of cotton limits its effectiveness in energy storage applications. The challenge of coating or embedding active and conductive materials onto cotton’s nonconductive surface has been overcome by various tactics. Conductive polymers, being versatile and multifunctional materials, offer promising solutions to revolutionize industries by addressing diverse challenges in energy storage. The application of conductive polymers in supercapacitors is explored extensively in this review. Finally, we discuss the challenges and future perspectives in this exciting and rapidly evolving field.
{"title":"Cotton and cellulose for supercapacitor-based carbon materials and conductive polymers","authors":"Nujud Badawi , Khalid Mujasam Batoo , Namrata Agrawal","doi":"10.1016/j.inoche.2024.113482","DOIUrl":"10.1016/j.inoche.2024.113482","url":null,"abstract":"<div><div>Cotton fibres, a natural form of cellulose, have played a pivotal role in developing wearable energy storage devices due to their wearability, integrability, environmental friendliness, and cost-effectiveness. Derived from plant cellulose, cotton has garnered significant attention for its potential in lightweight and wearable electronic devices, particularly energy storage systems, to meet the growing demand for wearable e-textiles. The combination of wearability, environmental sustainability, affordability, and superior electrochemical performance dramatically enhances the potential of cotton-based energy storage devices. The unique structure of cotton provides a large surface area, creating an ideal platform for loading active materials, facilitating charge/ion transfer, and promoting efficient ion migration. These characteristics make cotton and cellulose-based fibres highly effective in fabricating one-dimensional (1D) supercapacitors, demonstrating excellent electrochemical, mechanical, and wearable performance.</div><div>However, the intrinsic electrical insulation of cotton limits its effectiveness in energy storage applications. The challenge of coating or embedding active and conductive materials onto cotton’s nonconductive surface has been overcome by various tactics. Conductive polymers, being versatile and multifunctional materials, offer promising solutions to revolutionize industries by addressing diverse challenges in energy storage. The application of conductive polymers in supercapacitors is explored extensively in this review. Finally, we discuss the challenges and future perspectives in this exciting and rapidly evolving field.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113482"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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