Pub Date : 2024-11-24DOI: 10.1016/j.inoche.2024.113639
Ke Liu , Qihui Wang , Yifang Zhan , Shaoli Hong , Junjun Peng , Huihong Liu , Sakil Mahmud
This study introduces a highly sensitive platform for ultratrace mercury [Hg (II)] detection, utilizing a screen-printed carbon electrode (SPCE) modified with silver nanoparticles (AgNPs), chitosan (CS), and carbon nanotubes (CNTs). The AgNPs were synthesized using a green method incorporating CS and CNT hybrids, leading to their immobilization on the CNT sidewalls, resulting in nanoscale silver electrode arrays on the SPCE. Detection of Hg (II) involved the formation of Hg/Ag amalgam on the AgNPs/CS/CNT-modified SPCE surface by depositing mercury species onto elemental mercury. Hg (II) detection successfully occurred through the stripping of both Hg0 and Ag0 at a potential of +0.16 V in a supporting electrolyte (0.10 M HCl and 0.10 M KCl). This newly established detection method demonstrates exceptional selectivity and sensitivity, featuring a remarkable linear range for Hg (II) concentration from 1.0 nM to 12.6 nM, with an impressive correlation coefficient (R2) of 0.982 (n = 13) and a low detection limit of 0.4 nM. The designed electrode effectively measured Hg (II) levels in textile samples, yielding acceptable recovery results, while also exhibiting remarkable reproducibility and precision. This work presents a novel, highly sensitive, and selective approach for ultratrace Hg (II) detection, with promising applications in environmental monitoring and analytical chemistry.
本研究利用银纳米粒子（AgNPs）、壳聚糖（CS）和碳纳米管（CNTs）修饰的丝网印刷碳电极（SPCE），介绍了一种高灵敏度的超痕量汞[Hg (II)]检测平台。AgNPs采用绿色方法合成，将CS和碳纳米管杂化，使其固定在碳纳米管侧壁上，从而在SPCE上形成纳米级银电极阵列。汞（II）的检测涉及通过将汞沉积在元素汞上，在AgNPs/CS/ cnt修饰的SPCE表面形成Hg/Ag汞齐。通过在支持电解质（0.10 M HCl和0.10 M KCl）中以+0.16 V电位剥离Hg0和Ag0，成功地进行了汞（II）检测。该方法具有良好的选择性和灵敏度，在1.0 ~ 12.6 nM范围内具有良好的线性范围，相关系数（R2）为0.982 (n = 13)，检出限低至0.4 nM。所设计的电极有效地测量了纺织品样品中的汞（II）水平，产生了可接受的回收率结果，同时也表现出显著的再现性和精度。这项工作提出了一种新的、高灵敏度的、选择性的超痕量汞（II）检测方法，在环境监测和分析化学中有很好的应用前景。
{"title":"Mercury (II) sensor based on nanosilver/chitosan modified screen-printed carbon electrode","authors":"Ke Liu , Qihui Wang , Yifang Zhan , Shaoli Hong , Junjun Peng , Huihong Liu , Sakil Mahmud","doi":"10.1016/j.inoche.2024.113639","DOIUrl":"10.1016/j.inoche.2024.113639","url":null,"abstract":"<div><div>This study introduces a highly sensitive platform for ultratrace mercury [Hg (II)] detection, utilizing a screen-printed carbon electrode (SPCE) modified with silver nanoparticles (AgNPs), chitosan (CS), and carbon nanotubes (CNTs). The AgNPs were synthesized using a green method incorporating CS and CNT hybrids, leading to their immobilization on the CNT sidewalls, resulting in nanoscale silver electrode arrays on the SPCE. Detection of Hg (II) involved the formation of Hg/Ag amalgam on the AgNPs/CS/CNT-modified SPCE surface by depositing mercury species onto elemental mercury. Hg (II) detection successfully occurred through the stripping of both Hg<sup>0</sup> and Ag<sup>0</sup> at a potential of +0.16 V in a supporting electrolyte (0.10 M HCl and 0.10 M KCl). This newly established detection method demonstrates exceptional selectivity and sensitivity, featuring a remarkable linear range for Hg (II) concentration from 1.0 nM to 12.6 nM, with an impressive correlation coefficient (R<sup>2</sup>) of 0.982 (n = 13) and a low detection limit of 0.4 nM. The designed electrode effectively measured Hg (II) levels in textile samples, yielding acceptable recovery results, while also exhibiting remarkable reproducibility and precision. This work presents a novel, highly sensitive, and selective approach for ultratrace Hg (II) detection, with promising applications in environmental monitoring and analytical chemistry.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113639"},"PeriodicalIF":4.4,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743527","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 : 2024-11-24DOI: 10.1016/j.inoche.2024.113636
Daniil S. Koshelev , Alina V. Kirianova , Ekaterina Yu. Korneeva , Andrey A. Vaschenko , Elizaveta V. Lider , Lyubov’ S. Klyushova , Yanan Zhu , Valentina V. Utochnikova
A dual-emissive ytterbium complex with a pyrene-substituted Schiff base ligand was synthesized and characterized. The complex exhibits both visible and near-infrared (NIR) emissions, with the emission bands ratio showing a significant temperature dependence in the range of 77–420 K. This feature makes the complex suitable for luminescent thermometry applications including inside of the organic light-emitting diode (OLEDs) emission layer (EML). Several heterostructures with different hole transport layers and different thicknesses of the EML were tested. The OLED1 with thinner EML demonstrate external current efficiency (ECE) up to 30 μW/W while electroluminescence spectra contain both vis and NIR emission bands that make it possible to measure EML temperature which reach up to 77–114 °C.
{"title":"A dual vis-NIR emissive ytterbium(III) complex with potential application in OLED devices with optical determination of the internal temperature","authors":"Daniil S. Koshelev , Alina V. Kirianova , Ekaterina Yu. Korneeva , Andrey A. Vaschenko , Elizaveta V. Lider , Lyubov’ S. Klyushova , Yanan Zhu , Valentina V. Utochnikova","doi":"10.1016/j.inoche.2024.113636","DOIUrl":"10.1016/j.inoche.2024.113636","url":null,"abstract":"<div><div>A dual-emissive ytterbium complex with a pyrene-substituted Schiff base ligand was synthesized and characterized. The complex exhibits both visible and near-infrared (NIR) emissions, with the emission bands ratio showing a significant temperature dependence in the range of 77–420 K. This feature makes the complex suitable for luminescent thermometry applications including inside of the organic light-emitting diode (OLEDs) emission layer (EML). Several heterostructures with different hole transport layers and different thicknesses of the EML were tested. The OLED1 with thinner EML demonstrate external current efficiency (ECE) up to 30 μW/W while electroluminescence spectra contain both vis and NIR emission bands that make it possible to measure EML temperature which reach up to 77–114 °C.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113636"},"PeriodicalIF":4.4,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743435","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 : 2024-11-23DOI: 10.1016/j.inoche.2024.113608
Guang-Min Liang , Dong-Ao Mao , Kun Zhou, Jiu-Yu Ji, Wen-Xuan Xie, Yan-Feng Bi
By anti-disproportionation reaction, two Cu(I)-alkynyl cluster compounds, [Cu13(tBuCC)8(CF3COO)5(pz)]n (CuI13) and [Cu14(tBuCC)8(CF3COO)6(pz)2]n (CuI14), with different dimensions were precisely and directionally synthesized under solvothermal conditions, in which Cu(CF3COO)2·xH2O, copper powder, tBuCCH, and CF3COOH ligand reacted with varying molar quantities of pyrazine (pz) ligand. The increase in the quantity of pz ligand, not only promoted the increase of the number of copper cores from 13 to 14 but also realized the growth from the one-dimensional (1D) CuI13 chain to the two-dimensional (2D) CuI14 layer accompanied by strengthening Cu⋯Cu interactions. The photo-thermal conversion performance together with the degradation of methyl orange (MO) by CuI13 and CuI14 were studied under 532 nm light irradiation. The equilibrium temperature of photo-thermal conversion of CuI13 and CuI14 was separately 64.5 °C and 89.0 °C in the solid state and 46.0 °C and 53.0 °C in the aqueous solution. The better photo-thermal conversion of CuI14 can be assigned to the higher absorption intensity at 532 nm than that of CuI13. The photo-thermal synergistic degradation of MO by CuI13 and CuI14 was observed. The degradation rate of CuI14 reached 80 %, which is better than that of CuI13 (71 %). This work may shed light on designing metal cluster-based photo-thermal catalysts and explaining their structure–property relationship.
{"title":"Pyrazine-tuned metal cluster-based CuI13 chain and CuI14 layer for efficient photo-thermal synergistic degradation of methyl orange","authors":"Guang-Min Liang , Dong-Ao Mao , Kun Zhou, Jiu-Yu Ji, Wen-Xuan Xie, Yan-Feng Bi","doi":"10.1016/j.inoche.2024.113608","DOIUrl":"10.1016/j.inoche.2024.113608","url":null,"abstract":"<div><div>By anti-disproportionation reaction, two Cu(I)-alkynyl cluster compounds, [Cu<sub>13</sub>(<em><sup>t</sup></em>BuC<img>C)<sub>8</sub>(CF<sub>3</sub>COO)<sub>5</sub>(pz)]<em><sub>n</sub></em> (<strong>Cu<sup>I</sup><sub>13</sub></strong>) and [Cu<sub>14</sub>(<em><sup>t</sup></em>BuC<img>C)<sub>8</sub>(CF<sub>3</sub>COO)<sub>6</sub>(pz)<sub>2</sub>]<em><sub>n</sub></em> (<strong>Cu<sup>I</sup><sub>14</sub></strong>), with different dimensions were precisely and directionally synthesized under solvothermal conditions, in which Cu(CF<sub>3</sub>COO)<sub>2</sub>·xH<sub>2</sub>O, copper powder, <em><sup>t</sup></em>BuC<img>CH, and CF<sub>3</sub>COOH ligand reacted with varying molar quantities of pyrazine (pz) ligand. The increase in the quantity of pz ligand, not only promoted the increase of the number of copper cores from 13 to 14 but also realized the growth from the one-dimensional (1D) <strong>Cu<sup>I</sup><sub>13</sub></strong> chain to the two-dimensional (2D) <strong>Cu<sup>I</sup><sub>14</sub></strong> layer accompanied by strengthening Cu⋯Cu interactions. The photo-thermal conversion performance together with the degradation of methyl orange (MO) by <strong>Cu<sup>I</sup><sub>13</sub></strong> and <strong>Cu<sup>I</sup><sub>14</sub></strong> were studied under 532 nm light irradiation. The equilibrium temperature of photo-thermal conversion of <strong>Cu<sup>I</sup><sub>13</sub></strong> and <strong>Cu<sup>I</sup><sub>14</sub></strong> was separately 64.5 °C and 89.0 °C in the solid state and 46.0 °C and 53.0 °C in the aqueous solution. The better photo-thermal conversion of <strong>Cu<sup>I</sup><sub>14</sub></strong> can be assigned to the higher absorption intensity at 532 nm than that of <strong>Cu<sup>I</sup><sub>13</sub></strong>. The photo-thermal synergistic degradation of MO by <strong>Cu<sup>I</sup><sub>13</sub></strong> and <strong>Cu<sup>I</sup><sub>14</sub></strong> was observed. The degradation rate of <strong>Cu<sup>I</sup><sub>14</sub></strong> reached 80 %, which is better than that of <strong>Cu<sup>I</sup><sub>13</sub></strong> (71 %). This work may shed light on designing metal cluster-based photo-thermal catalysts and explaining their structure–property relationship.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113608"},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743436","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}
This study presents a novel polyvinyl alcohol (PVA)-based nanocomposite enriched with Te2O3, Cr2O3, and Pr6O11 oxides, aimed at enhancing optical properties and antibacterial efficacy for biomedical and optoelectronic applications. Structural analysis through FT-IR, XRD, and XPS confirmed successful integration of the oxides into the PVA matrix. The nanocomposite exhibited a notable reducing in the optical band gap from 3.35 eV (PVA) to 2.75 eV (PVA-Te2O3-Cr2O3-Pr6O11), indicating improved crystalline ordering. Dielectric analysis revealed stability across frequencies, with a refractive index increase from 2.0 (pure PVA) to 2.38 (PVA-Te2O3-Cr2O3-Pr6O11), highlighting potential for electronic applications. Furthermore, the PVA-Te2O3-Cr2O3-Pr6O11 composite exhibited strong antibacterial activity, with inhibition zones of 15.5 ± 0.4 mm against E. coli and 14.2 ± 0.4 mm against S. aureus, outperforming other tested compositions. These findings suggest that this nanocomposite could be effectively utilized in biomedical devices and optoelectronics.
{"title":"Evaluation of physical, mechanical and biological properties of Te2O3/Cr2O3/Pr6O11 embedded in polyvinyl alcohol nanocomposite","authors":"Khadijah H. Alharbi , Amani Saleh Almuslem , Doaa Domyati , Walaa Alharbi , Abdulaziz Almalki , M.A. El-Morsy , A.A. Menazea","doi":"10.1016/j.inoche.2024.113612","DOIUrl":"10.1016/j.inoche.2024.113612","url":null,"abstract":"<div><div>This study presents a novel polyvinyl alcohol (PVA)-based nanocomposite enriched with Te<sub>2</sub>O<sub>3</sub>, Cr<sub>2</sub>O<sub>3</sub>, and Pr<sub>6</sub>O<sub>11</sub> oxides, aimed at enhancing optical properties and antibacterial efficacy for biomedical and optoelectronic applications. Structural analysis through FT-IR, XRD, and XPS confirmed successful integration of the oxides into the PVA matrix. The nanocomposite exhibited a notable reducing in the optical band gap from 3.35 eV (PVA) to 2.75 eV (PVA-Te<sub>2</sub>O<sub>3</sub>-Cr<sub>2</sub>O<sub>3</sub>-Pr<sub>6</sub>O<sub>11</sub>), indicating improved crystalline ordering. Dielectric analysis revealed stability across frequencies, with a refractive index increase from 2.0 (pure PVA) to 2.38 (PVA-Te<sub>2</sub>O<sub>3</sub>-Cr<sub>2</sub>O<sub>3</sub>-Pr<sub>6</sub>O<sub>11</sub>), highlighting potential for electronic applications. Furthermore, the PVA-Te<sub>2</sub>O<sub>3</sub>-Cr<sub>2</sub>O<sub>3</sub>-Pr<sub>6</sub>O<sub>11</sub> composite exhibited strong antibacterial activity, with inhibition zones of 15.5 ± 0.4 mm against <em>E. coli</em> and 14.2 ± 0.4 mm against <em>S. aureus</em>, outperforming other tested compositions. These findings suggest that this nanocomposite could be effectively utilized in biomedical devices and optoelectronics.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113612"},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722757","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 : 2024-11-23DOI: 10.1016/j.inoche.2024.113633
Siti Norsaffirah Zailan , Norsuria Mahmed , Aissa Bouaissi , Zahra Ramadlan Mubarokah , Mohd Natashah Norizan , Ili Salwani Mohamad , Nurfina Yudasari , Siti Salwa Mohammad Shirajuddin
Background
This study investigates the adsorption efficiency and photocatalytic activity of silver sulphide-activated carbon (Ag2S-AC) composites derived from ground coffee waste (GCW).
Methods
In this work, GCW was preceding to carbonized at 500 ± 2°C for hours and formed biochar. Then, GCW was subjected to activation using hydrochloric acid (HCl), phosphoric acid (H3PO4) and potassium hydroxide (KOH). The mixture was left to soak for 24 h at room temperature, followed by carbonization at 350 and 500˚C. In the meantime, the silver sulphide (Ag2S) was synthesized by using an ion exchange method. Sodium sulphide (Na2S) was used as sulphur source and mixed with silver nitrate (AgNO3) and sodium citrate (NaCit) for two hours, then dried in oven at 50 ± 2°C for 10 h. Next, the carbonized AC was subsequently combined with synthesized silver sulphide, resulting in the creation of Ag2S-activated carbon composites that functioned both as adsorbent and photocatalyst. Their capabilities as adsorbents and photocatalyst were studied by using copper ions (Cu2+) and methylene blue (MB) solution.
Significance findings
Based on results, GCW and all the prepared activated carbons are in the amorphous phase, except for the Ag2S-AC composites, where the Ag2S peak reflection can be observed from the X-ray diffraction (XRD) pattern. GCW shows rough and dense surface morphology. The AC shows different pore sizes and structures depending on the chemical activators used, where AC-KOH shows the largest pore size (165.31 μm). The existence of micropores can be observed in all the activated carbon samples. For the adsorption of Cu2+, all samples show more than 99 % of the removal efficiency. While for photocatalytic testing, the Ag2S-H3PO4 sample shows the highest degradation rate (97.7 %) of MB solutions.
{"title":"Adsorption efficiency and photocatalytic activity of silver sulphide-activated carbon (Ag2S-AC) composites","authors":"Siti Norsaffirah Zailan , Norsuria Mahmed , Aissa Bouaissi , Zahra Ramadlan Mubarokah , Mohd Natashah Norizan , Ili Salwani Mohamad , Nurfina Yudasari , Siti Salwa Mohammad Shirajuddin","doi":"10.1016/j.inoche.2024.113633","DOIUrl":"10.1016/j.inoche.2024.113633","url":null,"abstract":"<div><h3>Background</h3><div>This study investigates the adsorption efficiency and photocatalytic activity of silver sulphide-activated carbon (Ag<sub>2</sub>S-AC) composites derived from ground coffee waste (GCW).</div></div><div><h3>Methods</h3><div>In this work, GCW was preceding to carbonized at 500 ± 2°C for hours and formed biochar. Then, GCW was subjected to activation using hydrochloric acid (HCl), phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) and potassium hydroxide (KOH). The mixture was left to soak for 24 h at room temperature, followed by carbonization at 350 and 500˚C. In the meantime, the silver sulphide (Ag<sub>2</sub>S) was synthesized by using an ion exchange method. Sodium sulphide (Na<sub>2</sub>S) was used as sulphur source and mixed with silver nitrate (AgNO<sub>3</sub>) and sodium citrate (NaCit) for two hours, then dried in oven at 50 ± 2°C for 10 h. Next, the carbonized AC was subsequently combined with synthesized silver sulphide, resulting in the creation of Ag<sub>2</sub>S-activated carbon composites that functioned both as adsorbent and photocatalyst. Their capabilities as adsorbents and photocatalyst were studied by using copper ions (Cu<sup>2+</sup>) and methylene blue (MB) solution.</div></div><div><h3>Significance findings</h3><div>Based on results, GCW and all the prepared activated carbons are in the amorphous phase, except for the Ag<sub>2</sub>S-AC composites, where the Ag<sub>2</sub>S peak reflection can be observed from the X-ray diffraction (XRD) pattern. GCW shows rough and dense surface morphology. The AC shows different pore sizes and structures depending on the chemical activators used, where AC-KOH shows the largest pore size (165.31 μm). The existence of micropores can be observed in all the activated carbon samples. For the adsorption of Cu<sup>2+</sup>, all samples show more than 99 % of the removal efficiency. While for photocatalytic testing, the Ag<sub>2</sub>S-H<sub>3</sub>PO<sub>4</sub> sample shows the highest degradation rate (97.7 %) of MB solutions.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113633"},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722754","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 : 2024-11-22DOI: 10.1016/j.inoche.2024.113610
Naheem Adekilekun Tijani , Olamide Abiodun Akintayo , Gbadebo Ismaila Olatona , Abdulmajeed Abdullah Alayyaf , Maruf M. Popoola , Haekyonug Kim , Saheed Adekunle Adewinbi
Recently, the use of nanostructured material has continued to gain huge recognition in healthcare-related fields owing to their strong biological activity in the prevention of bacterial growth, thus minimizing the spread of bacterial infections. In this current research, we evaluated the effect of annealing temperature on some surface properties and antimicrobial efficacy of molybdenum trioxide (MoO3) nanostructure against two urinary tract infections (UTIs) pathogens. Some surface structural investigation of the samples revealed an amorphous nestlike MoO3 nanoparticle which exhibited a phase change into well-defined nanorods upon annealing. The deposited films’ average crystallite sizes were found within the range of 35.4 to 52.1 nm depending on annealing temperature. Optical studies from UV–visible solar spectra revealed the deposited MoO3 film exhibited tuneable optical band structure with band-gap and Urbach energy values between 2.90 to 3.21 eV and 0.88 to 0.90 eV, respectively, depending on annealing temperature. The antimicrobial action of MoO3-coated films towards the Gram-positive (E. feacalis) and Gram-negative (E. coli) UTI bacteria pathogens revealed great efficiency that decreased with an increase in annealing temperature. Moreover, superior activity was recorded against Gram-positive bacteria when compared to Gram-negative bacteria. These results strongly indicate the use of MoO3 nanostructure as a potential antimicrobial agent for the control of urinary tract infections. The study reaffirmed surface microstructure and optical band structure of MoO3 film can be tailored by subjecting it to some deposition heat treatments. It also unveiled the antimicrobial potencies of the spincoated MoO3 nanoparticles can be tailored via annealing processes.
{"title":"Spincoated MoO3 nanostructured thinly rods: An insight into effect of annealing temperature on physical properties and antibacterial activity against urinary tract pathogens","authors":"Naheem Adekilekun Tijani , Olamide Abiodun Akintayo , Gbadebo Ismaila Olatona , Abdulmajeed Abdullah Alayyaf , Maruf M. Popoola , Haekyonug Kim , Saheed Adekunle Adewinbi","doi":"10.1016/j.inoche.2024.113610","DOIUrl":"10.1016/j.inoche.2024.113610","url":null,"abstract":"<div><div>Recently, the use of nanostructured material has continued to gain huge recognition in healthcare-related fields owing to their strong biological activity in the prevention of bacterial growth, thus minimizing the spread of bacterial infections. In this current research, we evaluated the effect of annealing temperature on some surface properties and antimicrobial efficacy of molybdenum trioxide (MoO<sub>3</sub>) nanostructure against two urinary tract infections (UTIs) pathogens. Some surface structural investigation of the samples revealed an amorphous nestlike MoO<sub>3</sub> nanoparticle which exhibited a phase change into well-defined nanorods upon annealing. The deposited films’ average crystallite sizes were found within the range of 35.4 to 52.1 nm depending on annealing temperature. Optical studies from UV–visible solar spectra revealed the deposited MoO<sub>3</sub> film exhibited tuneable optical band structure with band-gap and Urbach energy values between 2.90 to 3.21 eV and 0.88 to 0.90 eV, respectively, depending on annealing temperature. The antimicrobial action of MoO<sub>3</sub>-coated films towards the Gram-positive (<em>E. feacalis</em>) and Gram-negative (<em>E. coli</em>) UTI bacteria pathogens revealed great efficiency that decreased with an increase in annealing temperature. Moreover, superior activity was recorded against Gram-positive bacteria when compared to Gram-negative bacteria. These results strongly indicate the use of MoO<sub>3</sub> nanostructure as a potential antimicrobial agent for the control of urinary tract infections. The study reaffirmed surface microstructure and optical band structure of MoO<sub>3</sub> film can be tailored by subjecting it to some deposition heat treatments. It also unveiled the antimicrobial potencies of the spincoated MoO<sub>3</sub> nanoparticles can be tailored via annealing processes.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113610"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722794","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}
Recently, macromolecules especially carbohydrates have attracted a lot of attention because of their sustainability, biocompatibility, and adaptability to a wide range of applications. Two carbohydrates, Chitosan, and Starch, have shown great promise in the production of nanocomposites (NCs), which can fundamentally alter healthcare technologies. This review article emphasizes the unique characteristics of Chitosan and Starch, including their abundance, non-toxicity, and biodegradability, which make them excellent options for sustainable materials in the medical industry. The progress made in the fabrication of biopolymers-based NCs, emphasizing the use of different nanofillers—nanoparticles, nanotubes, and nano-sheets in enhancing the mechanical, thermal, and functional properties of Chitosan and Starch-based matrix is discussed in detail. The recent trends in synthesis and applications of Chitosan, Starch, and metal oxide nanoparticles-based NCs in the pharmaceutical and biomedical industries were discussed in detail. This review article is crucial to advance the development of carbohydrate-based sustainable materials, reduce environmental impact, improve nanocomposite technology, and industrial innovation. We have pointed out any gaps in the literature and suggested recommendations for future research in the directions of sustainable developments, such as enhancing the characteristics of Chitosan, starch, and metal oxide nanoparticles-based nanocomposite materials or creating new materials. This review article opens new avenues in natural polymer-based NCs used in different medical sectors.
{"title":"Harnessing the power of carbohydrates: Chitosan and starch-based nanocomposites for sustainable developments","authors":"Ankit Dhayal , Harish Kumar , Bindu Mangla , Devender Singh","doi":"10.1016/j.inoche.2024.113597","DOIUrl":"10.1016/j.inoche.2024.113597","url":null,"abstract":"<div><div>Recently, macromolecules especially carbohydrates have attracted a lot of attention because of their sustainability, biocompatibility, and adaptability to a wide range of applications. Two carbohydrates, Chitosan, and Starch, have shown great promise in the production of nanocomposites (NCs), which can fundamentally alter healthcare technologies. This review article emphasizes the unique characteristics of Chitosan and Starch, including their abundance, non-toxicity, and biodegradability, which make them excellent options for sustainable materials in the medical industry. The progress made in the fabrication of biopolymers-based NCs, emphasizing the use of different nanofillers—nanoparticles, nanotubes, and nano-sheets in enhancing the mechanical, thermal, and functional properties of Chitosan and Starch-based matrix is discussed in detail. The recent trends in synthesis and applications of Chitosan, Starch, and metal oxide nanoparticles-based NCs in the pharmaceutical and biomedical industries were discussed in detail. This review article is crucial to advance the development of carbohydrate-based sustainable materials, reduce environmental impact, improve nanocomposite technology, and industrial innovation. We have pointed out any gaps in the literature and suggested recommendations for future research in the directions of sustainable developments, such as enhancing the characteristics of Chitosan, starch, and metal oxide nanoparticles-based nanocomposite materials or creating new materials. This review article opens new avenues in natural polymer-based NCs used in different medical sectors.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113597"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743531","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 : 2024-11-22DOI: 10.1016/j.inoche.2024.113607
Muneef Hasan , Adil Hossain , Heider A. Abdulhussein , Abdullah Al Shadi , Bijoy Sorker , Ahmed Adnan Al-Khafagi , Redi Kristian Pingak , Diana Dahliah , Mohammed S. Abu-Jafar , Asif Hosen
This study evaluates the physical properties of lead-free Sr3BF3 (B = As, Sb) photovoltaic compounds including structural, electronic, mechanical, optical, thermodynamic, and thermoelectric behavior using calculations based on DFT approach. Born stability criteria and formation enthalpy estimates show that the compounds under study are mechanically and thermodynamically stable. The initial lattice constants for Sr3AsF3 and Sr3SbF3 were determined to be 5.71 Å and 5.97 Å, respectively. While simulating the compounds under pressure, lattice constants, cell volumes, and bond lengths decrease. The band structure investigation shows that these compounds are semiconducting with an adjustable direct bandgap. The electronic band gap contracts by pressure, shifting the material from ultraviolet to the visible spectrum. This modification enhances electron transition from valence band maxima to conduction band minima, enhancing optical efficiency. The shift and rise in ductility and machinability index under pressure ensures good lubrication, low friction, and significant plastic deformation suitable for many industrial applications. Simultaneously, the static dielectric constant increases, increasing absorption and conductivity and red-shifting the optical spectrum, and reducing reflectivity in the visible spectrum. The thermodynamic behavior of the compounds was affected by both pressure and temperature variation. The thermoelectric figure of merit becomes closer to unity with a shorter band gap, indicating increased efficiency. Our findings suggest that Sr3BF3 (B = As, Sb) photovoltaic compounds could be used for the invention of next-generation solar cells and thermoelectric devices.
{"title":"A comprehensive analysis of structural, electronic, optical, mechanical, thermodynamic, and thermoelectric properties of direct band gap Sr3BF3 (B = As, Sb) photovoltaic compounds: DFT-GGA and mBJ approach","authors":"Muneef Hasan , Adil Hossain , Heider A. Abdulhussein , Abdullah Al Shadi , Bijoy Sorker , Ahmed Adnan Al-Khafagi , Redi Kristian Pingak , Diana Dahliah , Mohammed S. Abu-Jafar , Asif Hosen","doi":"10.1016/j.inoche.2024.113607","DOIUrl":"10.1016/j.inoche.2024.113607","url":null,"abstract":"<div><div>This study evaluates the physical properties of lead-free Sr<sub>3</sub>BF<sub>3</sub> (B = As, Sb) photovoltaic compounds including structural, electronic, mechanical, optical, thermodynamic, and thermoelectric behavior using calculations based on DFT approach. Born stability criteria and formation enthalpy estimates show that the compounds under study are mechanically and thermodynamically stable. The initial lattice constants for Sr<sub>3</sub>AsF<sub>3</sub> and Sr<sub>3</sub>SbF<sub>3</sub> were determined to be 5.71 Å and 5.97 Å, respectively. While simulating the compounds under pressure, lattice constants, cell volumes, and bond lengths decrease. The band structure investigation shows that these compounds are semiconducting with an adjustable direct bandgap. The electronic band gap contracts by pressure, shifting the material from ultraviolet to the visible spectrum. This modification enhances electron transition from valence band maxima to conduction band minima, enhancing optical efficiency. The shift and rise in ductility and machinability index under pressure ensures good lubrication, low friction, and significant plastic deformation suitable for many industrial applications. Simultaneously, the static dielectric constant increases, increasing absorption and conductivity and red-shifting the optical spectrum, and reducing reflectivity in the visible spectrum. The thermodynamic behavior of the compounds was affected by both pressure and temperature variation. The thermoelectric figure of merit becomes closer to unity with a shorter band gap, indicating increased efficiency. Our findings suggest that Sr<sub>3</sub>BF<sub>3</sub> (B = As, Sb) photovoltaic compounds could be used for the invention of next-generation solar cells and thermoelectric devices.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113607"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706339","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 : 2024-11-22DOI: 10.1016/j.inoche.2024.113618
Ziqi Qin , Lei Zhu , Xiang Ge , Chengcheng Li , Xun Wang , Xian Liu
5 %A-Bi2WO6 (5 %A-BW) photocatalysts with a flower-spherical structure were synthesised by hydrothermal technique at 120 °C for 24 h. This photocatalyst was used to degrade sulfamethazine in wastewater. It was found that 50 ml of sulfamethazine at a concentration of 5 mg/L and pH 6.0 was degraded by 92.7 % when 25 mg of the 5 % A-BW sample underwent exposure to a 500-watt Xenon light at the wavelength of 420 nm for 90 min. This is a 47.7 % improvement over the degradation rate of Bi2WO6 (0 % A-BW). This improvement was credited to the efficient inhibition of photogenerated e−-h+ pair recombination by Ag doping, which enhanced photocatalysis. Through the analysis of ESR characterization and quenching studies, it can be determined that O2−, OH and h+ all contribute to the photocatalytic process, with O2− playing the largest role. In conclusion, the 5 % A-BW composites exhibited excellent photocatalytic activity, which can provide a reference for the future application of photocatalytic technology to treat organically polluted wastewater.
{"title":"Flower-spherical Ag-Bi2WO6 photocatalytic degradation of sulfamethazine","authors":"Ziqi Qin , Lei Zhu , Xiang Ge , Chengcheng Li , Xun Wang , Xian Liu","doi":"10.1016/j.inoche.2024.113618","DOIUrl":"10.1016/j.inoche.2024.113618","url":null,"abstract":"<div><div>5 %A-Bi<sub>2</sub>WO<sub>6</sub> (5 %A-BW) photocatalysts with a flower-spherical structure were synthesised by hydrothermal technique at 120 °C for 24 h. This photocatalyst was used to degrade sulfamethazine in wastewater. It was found that 50 ml of sulfamethazine at a concentration of 5 mg/L and pH 6.0 was degraded by 92.7 % when 25 mg of the 5 % A-BW sample underwent exposure to a 500-watt Xenon light at the wavelength of 420 nm for 90 min. This is a 47.7 % improvement over the degradation rate of Bi<sub>2</sub>WO<sub>6</sub> (0 % A-BW). This improvement was credited to the efficient inhibition of photogenerated e<sup>−</sup>-h<sup>+</sup> pair recombination by Ag doping, which enhanced photocatalysis. Through the analysis of ESR characterization and quenching studies, it can be determined that <sup><img></sup>O<sub>2</sub><sup>−</sup>, <sup><img></sup>OH and h<sup>+</sup> all contribute to the photocatalytic process, with <sup><img></sup>O<sub>2</sub><sup>−</sup> playing the largest role. In conclusion, the 5 % A-BW composites exhibited excellent photocatalytic activity, which can provide a reference for the future application of photocatalytic technology to treat organically polluted wastewater.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113618"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722753","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 : 2024-11-22DOI: 10.1016/j.inoche.2024.113601
Dharmaraj J. Patil, Harpreet Singh Grewal
The present work successfully demonstrated the morphological variation of CaFe2O4 (CFO) concerning various fuels (carboxylic acid groups contain compounds) using a one-step combustion technique. The SEM analysis of the CFO suggests the formation of sharp-edge rocky crystals to highly agglomerated porous clumps concerning the role of fuel. The x-ray diffraction analysis suggests that all samples of CFO are nanocrystalline orthorhombic structure constituted <50 nm. The BET and EDX analysis discloses that CFO s surface area and element composition is highly depend on the fuel molecule (reducer). The CFO performs efficacious in the adsorptive removal of hazardous dye Acid Fuchsin (AF) from an aqueous medium in a slightly acidic environment (pH 6). The AF removal was engaged with the batch adsorption method and optimized the process’s essential parameters (amount of adsorbent, initial AF concentration, and time) were optimized to achieve the utmost efficiency. The AF adsorption was well described by the Langmuir isotherm with outstanding adsorption capacity in the order of CFO-OA (Oxalic acid) (866) < CFO-TA (Tartaric acid) (1063) < CFO-CA (Citric acid) (1504) < CFO-MA (Malonic acid) (1656 mg/g). The adsorption energies were estimated from the Dubinin-Radushkevich model, indicating that adsorption occurs via the chemical process. The pseudo-second-order (PSO) kinetic model was better at explaining the uptake of AF, and the Intraparticle diffusion model indicated that pore diffusion was the rate-controlling step. The reusability test shows that the CFO has high efficiency up to five regeneration cycles. Thus, the work suggests that CFO could be an eco-friendly, cost-effective alternative adsorbent for wastewater treatment.
{"title":"Carboxylic acid-based fuel mediated sustainable one-pot fabrication of CaFe2O4 with enhanced adsorptive elimination of hazardous dye","authors":"Dharmaraj J. Patil, Harpreet Singh Grewal","doi":"10.1016/j.inoche.2024.113601","DOIUrl":"10.1016/j.inoche.2024.113601","url":null,"abstract":"<div><div>The present work successfully demonstrated the morphological variation of CaFe<sub>2</sub>O<sub>4</sub> (CFO) concerning various fuels (carboxylic acid groups contain compounds) using a one-step combustion technique. The SEM analysis of the CFO suggests the formation of sharp-edge rocky crystals to highly agglomerated porous clumps concerning the role of fuel. The x-ray diffraction analysis suggests that all samples of CFO are nanocrystalline orthorhombic structure constituted <50 nm. The BET and EDX analysis discloses that CFO s surface area and element composition is highly depend on the fuel molecule (reducer). The CFO performs efficacious in the adsorptive removal of hazardous dye Acid Fuchsin (AF) from an aqueous medium in a slightly acidic environment (pH 6). The AF removal was engaged with the batch adsorption method and optimized the process’s essential parameters (amount of adsorbent, initial AF concentration, and time) were optimized to achieve the utmost efficiency. The AF adsorption was well described by the Langmuir isotherm with outstanding adsorption capacity in the order of CFO-OA (Oxalic acid) (866) < CFO-TA (Tartaric acid) (1063) < CFO-CA (Citric acid) (1504) < CFO-MA (Malonic acid) (1656 mg/g). The adsorption energies were estimated from the Dubinin-Radushkevich model, indicating that adsorption occurs via the chemical process. The pseudo-second-order (PSO) kinetic model was better at explaining the uptake of AF, and the Intraparticle diffusion model indicated that pore diffusion was the rate-controlling step. The reusability test shows that the CFO has high efficiency up to five regeneration cycles. Thus, the work suggests that CFO could be an eco-friendly, cost-effective alternative adsorbent for wastewater treatment.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"171 ","pages":"Article 113601"},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743530","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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