Pub Date : 2024-12-01DOI: 10.1016/j.cinorg.2024.100071
P. Gurumoorthy , S. Ulaganathan , S. Baskaran
The new, unusual and asymmetric cobalt(II) complex, [Co(phen)2(Cl2)]3(H2O).[Co(phen)2(Cl)(H2O)](Cl) (phen = 1,10-phenanthroline), has been synthesized and characterized structurally by regular spectral and single crystal XRD analysis. An asymmetric complex crystallized in a monoclinic system with space group P21/c, a = 14.093(5) Å, b = 24.089(5) Å, c = 14.241(5) Å, α = 90.000(5)°, β = 98.010(5)°, and γ = 90.000(5)°. DNA binding interactions of complex with calf thymus DNA (CT-DNA) has investigated by UV–Vis absorption, ethidium bromide displacement assay, viscometric and cyclic voltammetric titrations, and the results infer an intercalation mode of binding. Complex cleaves effectively plasmid pBR322 DNA, and exhibits remarkable cytotoxic activity against human colon cancer cell line (HCT15).
合成了一种新的、不对称的钴（II）配合物[Co(phen)2(Cl2)]3(H2O).[Co(phen)2(Cl)(H2O)](Cl) （phen = 1,10-菲罗啉），并用规则光谱和单晶XRD分析对其结构进行了表征。非对称复杂结晶在单斜晶系,空间群P21 / c, a = 14.093 (5), b = 24.089 (5) a, c = 14.241(5),α= 90.000(5)°,β= 98.010(5)°,γ= 90.000(5)°。采用紫外可见吸收、溴化乙啶置换法、粘度法和循环伏安滴定法研究了复合物与小牛胸腺DNA （CT-DNA）的结合相互作用，结果表明复合物与小牛胸腺DNA的结合存在嵌入模式。复合物可有效切割pBR322质粒DNA，对人结肠癌细胞系（HCT15）表现出显著的细胞毒活性。
{"title":"DNA interaction and cytotoxicity of a new asymmetric dimer cobalt(II) complex [Co(phen)2(Cl2)]3(H2O).[Co(phen)2(Cl)(H2O)](Cl)","authors":"P. Gurumoorthy , S. Ulaganathan , S. Baskaran","doi":"10.1016/j.cinorg.2024.100071","DOIUrl":"10.1016/j.cinorg.2024.100071","url":null,"abstract":"<div><div>The new, unusual and asymmetric cobalt(II) complex, [Co(phen)<sub>2</sub>(Cl<sub>2</sub>)]3(H<sub>2</sub>O).[Co(phen)<sub>2</sub>(Cl)(H<sub>2</sub>O)](Cl) (phen = 1,10-phenanthroline), has been synthesized and characterized structurally by regular spectral and single crystal XRD analysis. An asymmetric complex crystallized in a monoclinic system with space group <em>P</em>2<sub>1</sub>/<em>c</em>, a = 14.093(5) Å, b = 24.089(5) Å, c = 14.241(5) Å, <em>α</em> = 90.000(5)<sup>°</sup>, <em>β</em> = 98.010(5)<sup>°</sup>, and <em>γ</em> = 90.000(5)<sup>°</sup>. DNA binding interactions of complex with calf thymus DNA (CT-DNA) has investigated by UV–Vis absorption, ethidium bromide displacement assay, viscometric and cyclic voltammetric titrations, and the results infer an intercalation mode of binding. Complex cleaves effectively plasmid pBR322 DNA, and exhibits remarkable cytotoxic activity against human colon cancer cell line (HCT15).</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-01DOI: 10.1016/j.cinorg.2024.100080
P. Kalaivani , R. Lokeshwari , R. Shankar , S. Cyril Christan , R. Prabhakaran
New probe naphthalen-2-yl-N′-(2-hydroxybenzoyl)benzohydrazonate (NHBH) chemosensor has been prepared and characterized by IR, 1H NMR, 13C NMR and Mass Spectroscopic techniques. The probe (NHBH) was subjected to study its cation sensing ability with twelve different metal chloride salt (Al3+, Ca2+, Co2+, Cr3+, Fe3+, Cu2+, Mn2+, Ni2+, Zn2+, Hg2+, K+ and Na+) in 1:4 methanol water medium by using absorption and emission titration experiments. The results showed that the probe detected Fe3+ and Na + ions by showing absorption enhancement and fluorescence emission quenching. Further, NHBH exhibited good selectivity for Fe3+ and Na + ions in the presence of mostother metal ions. Job's plot analysis authenticated the 1:1 binding nature of NHBH with Fe3+ and Na + ions. Further, DFT studies validated the formation of probe (NHBH), fluorophore-quencher (Fe-NHBH) complex formation.
{"title":"Naphthalen-2-yl-N′-(2-hydroxybenzoyl)benzohydrazonate as dual metal ion chemosensor for the detection of Fe3+ and Na+ ions","authors":"P. Kalaivani , R. Lokeshwari , R. Shankar , S. Cyril Christan , R. Prabhakaran","doi":"10.1016/j.cinorg.2024.100080","DOIUrl":"10.1016/j.cinorg.2024.100080","url":null,"abstract":"<div><div>New probe naphthalen-2-yl-N′-(2-hydroxybenzoyl)benzohydrazonate (NHBH) chemosensor has been prepared and characterized by IR, <sup>1</sup>H NMR, <sup>13</sup>C NMR and Mass Spectroscopic techniques. The probe (NHBH) was subjected to study its cation sensing ability with twelve different metal chloride salt (Al<sup>3+</sup>, Ca<sup>2+</sup>, Co<sup>2+</sup>, Cr<sup>3+</sup>, Fe<sup>3+</sup>, Cu<sup>2+</sup>, Mn<sup>2+</sup>, Ni<sup>2+</sup>, Zn<sup>2+</sup>, Hg<sup>2+</sup>, K<sup>+</sup> and Na<sup>+</sup>) in 1:4 methanol water medium by using absorption and emission titration experiments. The results showed that the probe detected Fe<sup>3+</sup> and Na <sup>+</sup> ions by showing absorption enhancement and fluorescence emission quenching. Further, NHBH exhibited good selectivity for Fe<sup>3+</sup> and Na <sup>+</sup> ions in the presence of mostother metal ions. Job's plot analysis authenticated the 1:1 binding nature of NHBH with Fe<sup>3+</sup> and Na <sup>+</sup> ions. Further, DFT studies validated the formation of probe (NHBH), fluorophore-quencher (Fe-NHBH) complex formation.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100080"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-20DOI: 10.1016/j.cinorg.2024.100082
Pawan K. Khanna, Shubhangi Pandit, Naeem Mohammad, Priyanka Phalswal
Magic sized ZnSe nanoclusters have applications in a wide range of areas, such as bioimaging, bio-detection techniques, LEDs and solar cells etc. Despite extensive studies done on ZnSe quantum dots (QDs), the technological potential of photonic behaviour of their lower size range clusters is still largely unexplored. We herein present rapid mustered oil mediated synthesis of magic sized ZnSe with their identification as single-family entities by trapping a fixed position doublet in their absorption spectra. Consistent absorption peaks at 304/305 and 318/19 nm irrespective of methods employed are presented. The PL spectra show broad emissions between 350 and 550 nm dominating blue region of energy offering scope of further tunability. The mustard oil mediated synthesis was performed using thermal, microwave and ultrasound energy. Despite their size domain of about 2 nm, their broad XRD pattern have signature of crystalline nature. Mass spectrometry, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are in good support of ZnSe magic size clusters. Typically, blue region CIE coordinates are estimated from PL emission spectra.
{"title":"Mustard oil mediated synthesis of magic-sized ZnSe nanoclusters","authors":"Pawan K. Khanna, Shubhangi Pandit, Naeem Mohammad, Priyanka Phalswal","doi":"10.1016/j.cinorg.2024.100082","DOIUrl":"10.1016/j.cinorg.2024.100082","url":null,"abstract":"<div><div>Magic sized ZnSe nanoclusters have applications in a wide range of areas, such as bioimaging, bio-detection techniques, LEDs and solar cells etc. Despite extensive studies done on ZnSe quantum dots (QDs), the technological potential of photonic behaviour of their lower size range clusters is still largely unexplored. We herein present rapid mustered oil mediated synthesis of magic sized ZnSe with their identification as single-family entities by trapping a fixed position doublet in their absorption spectra. Consistent absorption peaks at 304/305 and 318/19 nm irrespective of methods employed are presented. The PL spectra show broad emissions between 350 and 550 nm dominating blue region of energy offering scope of further tunability. The mustard oil mediated synthesis was performed using thermal, microwave and ultrasound energy. Despite their size domain of about 2 nm, their broad XRD pattern have signature of crystalline nature. Mass spectrometry, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are in good support of ZnSe magic size clusters. Typically, blue region CIE coordinates are estimated from PL emission spectra.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100082"},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-20DOI: 10.1016/j.cinorg.2024.100076
Roohinaz Khanum, Shoukat Ali R.A
The present study describes about the synthesis, spectral characterization and computational studies of a new series of azo dyes produced from 5,6,7,8-tetrahydro-2-naphthylamine (3a-3d).
The aforementioned compounds are generated through the conventional method of diazotization of 5,6,7,8-tetrahydro-2-naphthylamine, followed by coupling reactions with four different coupling components, such as α-naphthol, β-naphthol, 6-bromo naphthol, and 8-hydroxy quinoline under suitable experimental conditions.
The resulting azo dyes are spectroscopically characterized and confirmed using UV, FTIR, NMR, and Mass spectral methods. The salvotochromic and fluorescence studies are performed by using various solvents CHCl3, DMF, DMSO and Ethanol.
A latent fingerprint application for the selected azo dye (3c) was also carried out, as it shows highest emission intensity in fluorescence studies. Additionally, computational DFT studies on the synthesized azo dyes are carried out in order to gain greater comprehension of the molecular properties which offer information regarding the compound's nonlinear optical (NLO) properties and its application.
{"title":"5,6,7,8 tetrahydro-2-naphthylamine based novel azo dye: Synthesis, spectral characterizations, DFT and latent fingerprinting application studies","authors":"Roohinaz Khanum, Shoukat Ali R.A","doi":"10.1016/j.cinorg.2024.100076","DOIUrl":"10.1016/j.cinorg.2024.100076","url":null,"abstract":"<div><div>The present study describes about the synthesis, spectral characterization and computational studies of a new series of azo dyes produced from 5,6,7,8-tetrahydro-2-naphthylamine (3a-3d).</div><div>The aforementioned compounds are generated through the conventional method of diazotization of 5,6,7,8-tetrahydro-2-naphthylamine, followed by coupling reactions with four different coupling components, such as α-naphthol, β-naphthol, 6-bromo naphthol, and 8-hydroxy quinoline under suitable experimental conditions.</div><div>The resulting azo dyes are spectroscopically characterized and confirmed using UV, FTIR, NMR, and Mass spectral methods. The salvotochromic and fluorescence studies are performed by using various solvents CHCl<sub>3</sub>, DMF, DMSO and Ethanol.</div><div>A latent fingerprint application for the selected azo dye (3c) was also carried out, as it shows highest emission intensity in fluorescence studies. Additionally, computational DFT studies on the synthesized azo dyes are carried out in order to gain greater comprehension of the molecular properties which offer information regarding the compound's nonlinear optical (NLO) properties and its application.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100076"},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-19DOI: 10.1016/j.cinorg.2024.100081
A. Sunil, Ashish Deep Chettri, S. Jagadeeswara Rao
o-Hydroxyphenylthiourea (HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline. This catalytic oxidation was monitored spectrophotometrically at 416 nm under ambient conditions, employing both tangent and fixed-time methods. The method's performance was optimized by investigating factors like pH, reagent concentration, temperature, and potential interferents. A linear relationship between the rate of reaction and Iridium(III) concentration was observed in the range of 0.001 ng–5.0 mg of Iridium per mL, enabling the detection of Iridium(III) down to 0.001 ng/mL at pH 11.7. The method's simplicity, cost-effectiveness, and sensitivity make it suitable for the determination of Iridium(III) in real-time samples, eliminating the need for additional reagents, complex procedures, or preconcentration steps.
{"title":"Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium","authors":"A. Sunil, Ashish Deep Chettri, S. Jagadeeswara Rao","doi":"10.1016/j.cinorg.2024.100081","DOIUrl":"10.1016/j.cinorg.2024.100081","url":null,"abstract":"<div><div><em>o</em>-Hydroxyphenylthiourea <strong>(</strong>HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline. This catalytic oxidation was monitored spectrophotometrically at 416 nm under ambient conditions, employing both tangent and fixed-time methods. The method's performance was optimized by investigating factors like pH, reagent concentration, temperature, and potential interferents. A linear relationship between the rate of reaction and Iridium(III) concentration was observed in the range of 0.001 ng–5.0 mg of Iridium per mL, enabling the detection of Iridium(III) down to 0.001 ng/mL at pH 11.7. The method's simplicity, cost-effectiveness, and sensitivity make it suitable for the determination of Iridium(III) in real-time samples, eliminating the need for additional reagents, complex procedures, or preconcentration steps.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100081"},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-15DOI: 10.1016/j.cinorg.2024.100079
Waheed Ul Hassan , Ferhan Kaleem , Muhammad Rizwan Mahmood , Dilshaid Hussain , Imtiaz Ahmad , Nawal Alghamdi , Imosobomeh L. Ikhioya
This study unveils a superior method for energy storage synthesis, employing CdO, SnO, and CdO0·2/SnO0.2 hetero-junction electrodes through enhanced solid-state reaction. The CdO and SnO electrodes with a specific capacitance of 266.66, 191.66, 166.66 F/g and 138.88, 122.22, and 115.07 F/g. The CdO0·2/SnO0.2 hetero-junction nanoparticles with a specific capacitance of 370.37, 222.22, 158.73 F/g. The charge storage capacity of CdO0·2/SnO0.2 hetero-junction nanoparticle electrodes is outstanding, making them highly beneficial for energy storage and supercapacitor applications. The XRD patterns obtained from the synthesized CdO0·2/SnO0.2 hetero-junction nanoparticles exhibit distinct diffraction peaks, showing a cubic crystal structure. These diffraction peaks, at 2θ values of 27.111°, 34.189°, 38.682°, 52.635°, 55.793o, 62.779o, 66.676o, and 79.496° can be attributed to the (111), (200), (211), (212), (220), (300), (22), and (311) diffraction planes of CdO0·2/SnO0.2 hetero-junction nanoparticles. The observation of a grain-like shape in the CdO0·2/SnO0.2 hetero-junction nanoparticles structure is attributed to CdO, which serves as a confirmation of the formation of a hetero-junction. The energy bandgap of CdO, SnO, and CdO0·2/SnO0.2 hetero-junction nanoparticles material are 2.50, 3.50, and 3.35 eV respectively.
{"title":"Enhanced solid-state reaction synthesis of CdO, SnO, and CdO0·2/SnO0.2 hetero-junction electrode for high-performance energy storage","authors":"Waheed Ul Hassan , Ferhan Kaleem , Muhammad Rizwan Mahmood , Dilshaid Hussain , Imtiaz Ahmad , Nawal Alghamdi , Imosobomeh L. Ikhioya","doi":"10.1016/j.cinorg.2024.100079","DOIUrl":"10.1016/j.cinorg.2024.100079","url":null,"abstract":"<div><div>This study unveils a superior method for energy storage synthesis, employing CdO, SnO, and CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction electrodes through enhanced solid-state reaction. The CdO and SnO electrodes with a specific capacitance of 266.66, 191.66, 166.66 F/g and 138.88, 122.22, and 115.07 F/g. The CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticles with a specific capacitance of 370.37, 222.22, 158.73 F/g. The charge storage capacity of CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticle electrodes is outstanding, making them highly beneficial for energy storage and supercapacitor applications. The XRD patterns obtained from the synthesized CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticles exhibit distinct diffraction peaks, showing a cubic crystal structure. These diffraction peaks, at 2θ values of 27.111°, 34.189°, 38.682°, 52.635°, 55.793<sup>o</sup>, 62.779<sup>o</sup>, 66.676<sup>o</sup>, and 79.496° can be attributed to the (111), (200), (211), (212), (220), (300), (22), and (311) diffraction planes of CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticles. The observation of a grain-like shape in the CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticles structure is attributed to CdO, which serves as a confirmation of the formation of a hetero-junction. The energy bandgap of CdO, SnO, and CdO<sub>0·2</sub>/SnO<sub>0.2</sub> hetero-junction nanoparticles material are 2.50, 3.50, and 3.35 eV respectively.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100079"},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-10DOI: 10.1016/j.cinorg.2024.100075
Imosobomeh L. Ikhioya , Nawal Alghamdi , Stanley Ebubechukwu Omeje , David Chibiuke Ikeh , Ruth Ngozi Odoh
In this study, we synthesized ZIF-8, ZIF-67, Gd₀.₀₁/ZIF-8, & Gd₀.₀₁/ZIF-67 electrodes using the direct combination technique. Both electrodes are being used for energy storage devices. We extensively evaluated these nanocomposites using a variety of electrochemical methods, including retention analysis, galvanostatic charge-discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). ZIF-8 exhibits a wide band gap of approximately 2.58 eV, suggesting its main absorption is of UV light. The peaks in the absorbance spectrum vary slightly in wavelength due to the presence of different metal centers. Peaks between 1400 and 1600 cm⁻1 indicate C–N stretching vibrations from the imidazolate linkers. Peaks between 1600 and 1700 cm⁻1 are associated with CC stretching vibrations. ZIF-8 exhibits well-defined peaks in its XRD pattern, indicating a high level of crystallinity. Peaks can be observed at specific 2θ values, typically at 22.09°, 26.62°, 38.49°, and 47.27°, which correspond to the (110), (200), (211), and (220) planes. The calculated specific capacitances for ZIF-8 and ZIF-67 are 223.95 and 255.20 F/g. For Gd0.01/ZIF-8, & Gd0.01/ZIF-67 specific capacitances are 575.00 and 587.50 F/g. The ZIF-8, ZIF-67, Gd0.01/ZIF-8, & Gd0.01/ZIF-67 electrodes exhibited specific capacitances of (78.30, 192.59, 342.57, and 1164) F/g at current densities of 1 A/g from the GCD calculation. The retention plot of ZIF-8, ZIF-67, Gd0.01/ZIF-8, & Gd0.01/ZIF-67 electrode shows efficiency of 71 %, 71 %, 105 % and 75 %, respectively, indicating their suitability for supercapacitor applications.
{"title":"Synergistic effects of gadolinium oxide into the matrix of zeolitic imidazolate frameworks (ZIFs) for supercapacitor applications","authors":"Imosobomeh L. Ikhioya , Nawal Alghamdi , Stanley Ebubechukwu Omeje , David Chibiuke Ikeh , Ruth Ngozi Odoh","doi":"10.1016/j.cinorg.2024.100075","DOIUrl":"10.1016/j.cinorg.2024.100075","url":null,"abstract":"<div><div>In this study, we synthesized ZIF-8, ZIF-67, Gd₀.₀₁/ZIF-8, & Gd₀.₀₁/ZIF-67 electrodes using the direct combination technique. Both electrodes are being used for energy storage devices. We extensively evaluated these nanocomposites using a variety of electrochemical methods, including retention analysis, galvanostatic charge-discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). ZIF-8 exhibits a wide band gap of approximately 2.58 eV, suggesting its main absorption is of UV light. The peaks in the absorbance spectrum vary slightly in wavelength due to the presence of different metal centers. Peaks between 1400 and 1600 cm⁻<sup>1</sup> indicate C–N stretching vibrations from the imidazolate linkers. Peaks between 1600 and 1700 cm⁻<sup>1</sup> are associated with C<img>C stretching vibrations. ZIF-8 exhibits well-defined peaks in its XRD pattern, indicating a high level of crystallinity. Peaks can be observed at specific 2θ values, typically at 22.09°, 26.62°, 38.49°, and 47.27°, which correspond to the (110), (200), (211), and (220) planes. The calculated specific capacitances for ZIF-8 and ZIF-67 are 223.95 and 255.20 F/g. For Gd<sub>0.01</sub>/ZIF-8, & Gd<sub>0.01</sub>/ZIF-67 specific capacitances are 575.00 and 587.50 F/g. The ZIF-8, ZIF-67, Gd<sub>0.01</sub>/ZIF-8, & Gd<sub>0.01</sub>/ZIF-67 electrodes exhibited specific capacitances of (78.30, 192.59, 342.57, and 1164) F/g at current densities of 1 A/g from the GCD calculation. The retention plot of ZIF-8, ZIF-67, Gd<sub>0.01</sub>/ZIF-8, & Gd<sub>0.01</sub>/ZIF-67 electrode shows efficiency of 71 %, 71 %, 105 % and 75 %, respectively, indicating their suitability for supercapacitor applications.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-09DOI: 10.1016/j.cinorg.2024.100074
Kousik Ghosh , K. Vamsee Krishna , T. Vinodkumar , T. Dinesh , R. Balakumar , S. Chitra
The motivation to find functional models of different metalloenzymes comes from their potential to develop better catalysts inspired by nature. Generally, metalloenzymes can activate aerial dioxygen due to the metal ions in it. Amongst the numerous metalloenzymes, catechol oxidase, and phenoxazinone synthase are the two most discussed metalloenzymes that are of interest to the research community for their ability to oxidize small organic substrates in an eco-friendly way. In this research work, Aegle marmelos (L.) Corrêa (a plant Indigenous to India) ash has been prepared as per the method mentioned in the Ayurvedic Pharmacopoeia of India (API). The ash's mineral composition has been evaluated using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ability of Aegle marmelos (L.) Corrêa ash to mimic the function of catechol oxidase, and phenoxazinone synthase-like metalloenzymes have been explored. The results of this study confirm that Aegle marmelos (L.) Corrêa ash can as a catalyst for promoting the aerobic oxidation of the organic substrates 3,5-di-tert-butylcatechol (3,5-DTBC) and o-aminophenol (OAPH) to their corresponding chromophores, which are the functions of catechol oxidase and phenoxazinone synthase metalloenzymes respectively. The average values of Vmax and KM-like kinetic parameters for catechol oxidase mimicking activity of ash are (3.4826 ± 0.0896) x 10−5 M S−1 and (512.9146 ± 13.7268) x 10−5 M, respectively. Similarly, the average values of Vmax and KM-like kinetic parameters for phenoxazinone synthase mimicking activity of ash are (1.8871 ± 0.0461) x 10−5 M S−1 and (1823.0084 ± 25.3384) x 10−5 M, respectively.
寻找不同金属酶功能模型的动机来自于它们从大自然中汲取灵感，开发出更好催化剂的潜力。一般来说，金属酶中的金属离子可以激活空气中的二氧。在众多的金属酶中，儿茶酚氧化酶和苯并噁嗪酮合酶是讨论最多的两种金属酶，它们能够以环保的方式氧化小型有机底物，因此备受研究界关注。在这项研究工作中，按照《印度阿育吠陀药典》（Ayurvedic Pharmacopoeia of India，API）中提到的方法制备了 Aegle marmelos (L.) Corrêa（一种印度本土植物）灰烬。使用电感耦合等离子体光学发射光谱（ICP-OES）对灰烬的矿物成分进行了评估。研究还探讨了 Aegle marmelos (L.) Corrêa 草木灰模拟儿茶酚氧化酶和苯并噁嗪酮合成酶类金属酶功能的能力。研究结果证实，Aegle marmelos (L.) Corrêa 草木灰可作为催化剂，促进有机底物 3,5- 二叔丁基邻苯二酚（3,5-DTBC）和邻氨基苯酚（OAPH）有氧氧化成相应的发色团，这两种底物分别具有儿茶酚氧化酶和吩嗪酮合成酶金属酶的功能。草木灰儿茶酚氧化酶模拟活性的 Vmax 和 KM 样动力学参数平均值分别为 (3.4826 ± 0.0896) x 10-5 M S-1 和 (512.9146 ± 13.7268) x 10-5 M。同样，草木灰模拟苯并噁嗪酮合成酶活性的 Vmax 和 KM 样动力学参数平均值分别为 (1.8871 ± 0.0461) x 10-5 M S-1 和 (1823.0084 ± 25.3384) x 10-5 M。
{"title":"Mineral composition of Aegle marmelos (L.) corrêa ash: Exploration of its ability to mimic the function of different metalloenzymes","authors":"Kousik Ghosh , K. Vamsee Krishna , T. Vinodkumar , T. Dinesh , R. Balakumar , S. Chitra","doi":"10.1016/j.cinorg.2024.100074","DOIUrl":"10.1016/j.cinorg.2024.100074","url":null,"abstract":"<div><div>The motivation to find functional models of different metalloenzymes comes from their potential to develop better catalysts inspired by nature. Generally, metalloenzymes can activate aerial dioxygen due to the metal ions in it. Amongst the numerous metalloenzymes, catechol oxidase, and phenoxazinone synthase are the two most discussed metalloenzymes that are of interest to the research community for their ability to oxidize small organic substrates in an eco-friendly way. In this research work, <em>Aegle marmelos</em> (L.) Corrêa (a plant Indigenous to India) ash has been prepared as per the method mentioned in the Ayurvedic Pharmacopoeia of India (API). The ash's mineral composition has been evaluated using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ability of <em>Aegle marmelos</em> (L.) Corrêa ash to mimic the function of catechol oxidase, and phenoxazinone synthase-like metalloenzymes have been explored. The results of this study confirm that <em>Aegle marmelos</em> (L.) Corrêa ash can as a catalyst for promoting the aerobic oxidation of the organic substrates <em>3,5-di-tert-butylcatechol</em> (<em>3,5-DTBC</em>) and <em>o-aminophenol</em> (<em>OAPH</em>) to their corresponding chromophores, which are the functions of catechol oxidase and phenoxazinone synthase metalloenzymes respectively. The average values of <em>V</em><sub>max</sub> and <em>K</em><sub><em>M</em></sub><em>-</em>like kinetic parameters for catechol oxidase mimicking activity of ash are (3.4826 ± 0.0896) x 10<sup>−5</sup> M S<sup>−1</sup> and (512.9146 ± 13.7268) x 10<sup>−5</sup> M, respectively. Similarly, the average values of <em>V</em><sub>max</sub> and <em>K</em><sub><em>M</em></sub><em>-</em>like kinetic parameters for phenoxazinone synthase mimicking activity of ash are (1.8871 ± 0.0461) x 10<sup>−5</sup> M S<sup>−1</sup> and (1823.0084 ± 25.3384) x 10<sup>−5</sup> M, respectively.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100074"},"PeriodicalIF":0.0,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-08DOI: 10.1016/j.cinorg.2024.100078
Zhong Zheng , Hong Zhao , Ruth Knibbe , Masashi Kotobuki , Xiaoyi Zhu , Li Lu , Lixian Sun , Zongwen Liu
Lithium-ion battery (LIB) is the most widely used secondary battery and has been extensively studied in the past few decades due to its many advantages compared to other secondary batteries, such as higher energy density and better cycling performance. Considering the potential risks of environmental pollution and fire hazard induced by leakage or overheating of conventional electrolytes composed of flammable organic solvent-dissolving Li salts, non-flammable solid electrolytes (SEs), especially ceramic electrolytes with different structural types have been developed to improve the safety performance of LIBs. As the properties of SEs significantly depend on the microstructure, this review systemically summarized the recent progress in inorganic solid electrolytes based on the classification of microstructure and presented the relevant discussion in detail, including the microstructures, the mechanisms of Li ionic migration and performance optimization. Additionally, several challenges for realizing industrial application of SEs, such as lower ionic conductivities compared to liquid electrolytes and unsatisfactory stability in ambient atmosphere were mentioned. To effectively boost the development of SEs, more advanced transmission electron microscopy and atom probe tomography should be considered to deeply investigate the relationship between microstructure and properties in the future.
锂离子电池（Lithium-ion battery，LIB）是应用最广泛的二次电池，与其他二次电池相比，LIB 具有能量密度更高、循环性能更好等诸多优势，因此在过去几十年中得到了广泛的研究。考虑到由可燃有机溶剂溶解锂盐组成的传统电解质存在泄漏或过热引起环境污染和火灾的潜在风险，人们开发了不可燃固体电解质（SE），特别是具有不同结构类型的陶瓷电解质，以提高 LIB 的安全性能。由于固体电解质的性能很大程度上取决于其微观结构，本综述根据微观结构的分类，系统地总结了无机固体电解质的最新进展，并详细介绍了相关讨论，包括微观结构、锂离子迁移机制和性能优化。此外，还提到了实现无机固态电解质工业应用所面临的几个挑战，如与液态电解质相比离子电导率较低、在环境气氛中的稳定性不理想等。为有效促进 SEs 的发展，未来应考虑采用更先进的透射电子显微镜和原子探针断层扫描技术来深入研究微观结构与性能之间的关系。
{"title":"Advances and challenges in inorganic lithium solid electrolytes","authors":"Zhong Zheng , Hong Zhao , Ruth Knibbe , Masashi Kotobuki , Xiaoyi Zhu , Li Lu , Lixian Sun , Zongwen Liu","doi":"10.1016/j.cinorg.2024.100078","DOIUrl":"10.1016/j.cinorg.2024.100078","url":null,"abstract":"<div><div>Lithium-ion battery (LIB) is the most widely used secondary battery and has been extensively studied in the past few decades due to its many advantages compared to other secondary batteries, such as higher energy density and better cycling performance. Considering the potential risks of environmental pollution and fire hazard induced by leakage or overheating of conventional electrolytes composed of flammable organic solvent-dissolving Li salts, non-flammable solid electrolytes (SEs), especially ceramic electrolytes with different structural types have been developed to improve the safety performance of LIBs. As the properties of SEs significantly depend on the microstructure, this review systemically summarized the recent progress in inorganic solid electrolytes based on the classification of microstructure and presented the relevant discussion in detail, including the microstructures, the mechanisms of Li ionic migration and performance optimization. Additionally, several challenges for realizing industrial application of SEs, such as lower ionic conductivities compared to liquid electrolytes and unsatisfactory stability in ambient atmosphere were mentioned. To effectively boost the development of SEs, more advanced transmission electron microscopy and atom probe tomography should be considered to deeply investigate the relationship between microstructure and properties in the future.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-07DOI: 10.1016/j.cinorg.2024.100077
M.C. Roopa , Sharadadevi Kallimani , K. Harish Kumar , S. Thirumala
This study presents the green synthesis of copper oxide (CuO) through an eco-friendly solution combustion method, utilizing lemongrass as a natural fuel source. The rGO/CuO composite was prepared via a simple reflux process, emphasizing environmental sustainability. Comprehensive characterization of the synthesized CuO and rGO/CuO composites was conducted using techniques such as XRD, SEM, FTIR, PL, HR-TEM, EDX, and UV–Vis's spectroscopy. The photocatalytic efficiency of the rGO/CuO composite was tested for the degradation of Methyl Violet (MV) dye, achieving an impressive degradation rate of 98.87 % and following first-order kinetic behavior. The half-life (t₁/₂) of the reaction was calculated to be 18.17 min, with a rate constant (k) of 0.0398 min⁻1. Various parameters affecting photocatalytic performance, including pH, dye concentration, light source, and catalyst dosage, were systematically investigated. Scavenger experiments were conducted to determine the active species involved in the degradation process, and total organic carbon (TOC) removal was measured to assess mineralization efficiency. The catalyst's reusability was also evaluated, confirming its potential for long-term use in sustainable environmental remediation applications.
{"title":"Green-Fueled synthesis of rGO/CuO for catalytic degradation of methyl violet dye","authors":"M.C. Roopa , Sharadadevi Kallimani , K. Harish Kumar , S. Thirumala","doi":"10.1016/j.cinorg.2024.100077","DOIUrl":"10.1016/j.cinorg.2024.100077","url":null,"abstract":"<div><div>This study presents the green synthesis of copper oxide (CuO) through an eco-friendly solution combustion method, utilizing lemongrass as a natural fuel source. The rGO/CuO composite was prepared via a simple reflux process, emphasizing environmental sustainability. Comprehensive characterization of the synthesized CuO and rGO/CuO composites was conducted using techniques such as XRD, SEM, FTIR, PL, HR-TEM, EDX, and UV–Vis's spectroscopy. The photocatalytic efficiency of the rGO/CuO composite was tested for the degradation of Methyl Violet (MV) dye, achieving an impressive degradation rate of 98.87 % and following first-order kinetic behavior. The half-life (t₁<sub>/</sub>₂) of the reaction was calculated to be 18.17 min, with a rate constant (k) of 0.0398 min⁻<sup>1</sup>. Various parameters affecting photocatalytic performance, including pH, dye concentration, light source, and catalyst dosage, were systematically investigated. Scavenger experiments were conducted to determine the active species involved in the degradation process, and total organic carbon (TOC) removal was measured to assess mineralization efficiency. The catalyst's reusability was also evaluated, confirming its potential for long-term use in sustainable environmental remediation applications.</div></div>","PeriodicalId":100233,"journal":{"name":"Chemistry of Inorganic Materials","volume":"4 ","pages":"Article 100077"},"PeriodicalIF":0.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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