Asian Journal of Chemistry最新文献

Copper and Nitrogen co-doped ZnO Nanomaterials with Enhanced Photocatalytic and Antibacterial Activities 铜氮共掺杂氧化锌纳米材料具有更强的光催化和抗菌活性

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31921

Mohammed Humayun Rashid Choudhury, Md Nizam Uddin, Partha Partim Nath, I. A. Siddiquey, Mohammad Razaul Karim, Md. Azharul Arafath, C. Ramana, Mohammed Muzibur Rahman

{"title":"Copper and Nitrogen co-doped ZnO Nanomaterials with Enhanced Photocatalytic and Antibacterial Activities","authors":"Mohammed Humayun Rashid Choudhury, Md Nizam Uddin, Partha Partim Nath, I. A. Siddiquey, Mohammad Razaul Karim, Md. Azharul Arafath, C. Ramana, Mohammed Muzibur Rahman","doi":"10.14233/ajchem.2024.31921","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31921","url":null,"abstract":"This work demonstrates the enhanced photocatalytic and antibacterial activities of copper and nitrogen-co-doped ZnO (Cu-N-ZnO) nanomaterials deposited onto soda-lime glass using a low-cost chemical approach. The effect of combined Cu-N doping is significant on the structure, properties, and performance of ZnO, as revealed from the characterization results. The synthesized materials crystallize in a hexagonal wurtzite structure of ZnO with a high degree of crystallinity, according to X-ray diffraction (XRD) experiments. The scanning electron microscopy (SEM) analysis indicated a uniformly distributed morphology with spherical-like ZnO nanoparticles. The optical studies revealed that the band gap decreases significantly in 5% Cu-5% N co-doped ZnO (2.89 eV) compared to intrinsic ZnO (3.36 eV). The photocatalytic and antibacterial activities of the samples were evaluated by the degradation of methylene blue dye in aqueous media and the inactivation of E. coli bacteria under visible light irradiation. The 5% Cu-5% N doped ZnO showed the highest dye degradation efficiency, which was 64.44% higher than that of the intrinsic ZnO and inactivated 62.53% more bacteria in the presence of light compared to that in a dark condition. Moreover, Cu-N co-doped ZnO inactivated 79.06% and 23.22% more bacteria than bare glass slides and ZnO under visible light irradiation, respectively.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141803931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Benzimidazole based Hydrazide-hydrazone Compounds: Synthesis, Characterization and Antimicrobial Assessment 基于苯并咪唑的新型肼基化合物：合成、表征和抗菌评估

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31484

V. A. Doshi, Yogesh S. Patel

{"title":"Novel Benzimidazole based Hydrazide-hydrazone Compounds: Synthesis, Characterization and Antimicrobial Assessment","authors":"V. A. Doshi, Yogesh S. Patel","doi":"10.14233/ajchem.2024.31484","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31484","url":null,"abstract":"This work presents a comprehensive study on the design, synthesis, spectral characterization and antimicrobial assessment of new hydrazide-hydrazone incorporated benzimidazole compounds (6a-p). The synthesis of these compounds (6a-p) involved the condensation of benzimidazole derivative, 4-(1-methyl-5-nitro-1H-benzo[d]imidazol-2-yl)butane hydrazide with substituted aromatic aldehydes, utilizing an efficient and environmentally benign synthetic route. The IR, NMR and mass spectrometry were among the spectroscopic methods used to characterize the novel synthesized substances to confirm their chemical structures. The antimicrobial properties of the synthesized benzimidazole-based hydrazide-hydrazone compounds (6a-p) were systematically assessed against a panel of pathogenic microorganisms, including two Gram-positive and two Gram-negative bacteria and three fungi. The potency of antimicrobial drugs was assessed by determining their minimum inhibitory concentrations (MIC). The findings demonstrate that compounds 6k and 6p have moderated antibacterial action against positive-Gram bacteria S. pyogenus (MTCC 442) and S. aureus (MTCC 96), but considerable antimicrobial activity against Gram-negative bacteria E. coli (MTCC 443) and P. aeruginosa (MTCC 1688). Although every drug exhibits mild to moderate antifungal efficacy against A. niger (MTCC 282), A. clavatus (MTCC 1323) and C. albicans (MTCC 227). Furthermore, in silico prediction of compounds pharmacokinetic properties was also conducted.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"19 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141804192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gold Nanoparticles for Targeting of Biomedical Applications: A Review 用于生物医学应用靶向的金纳米粒子：综述

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31729

Tan Tai Nguyen

引用次数: 1

Molybdate-based Nanocrystalline Materials for Efficient Environmental Remediation and Electrochemical Energy Conversion Applications: An Update 用于高效环境修复和电化学能量转换应用的钼酸盐基纳米晶体材料：最新进展

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31836

Ravi Akash, A. S. Nesaraj

引用次数: 0

Synthesis, X-Ray Crystal Structure, Solid State Electrical and Optical Properties of New Copper(II) Complex with 1,10-Phenanthroline Ligand 1,10-菲罗啉配体新铜（II）配合物的合成、X 射线晶体结构、固态电学和光学特性

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31953

Saikat Sarkar, Avijit Sarkar, Y. Aydogdu, F. Dagdelen, Sougata Sarkar, Krishna Chattopadhyay

{"title":"Synthesis, X-Ray Crystal Structure, Solid State Electrical and Optical Properties of New Copper(II) Complex with 1,10-Phenanthroline Ligand","authors":"Saikat Sarkar, Avijit Sarkar, Y. Aydogdu, F. Dagdelen, Sougata Sarkar, Krishna Chattopadhyay","doi":"10.14233/ajchem.2024.31953","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31953","url":null,"abstract":"A new ionic copper(II) complex of 1,10-phenanthroline was synthesized and structurally characterized by elemental and spectroscopic analyses, molar conductance and magnetic moment measurements. The crystal structure of complex was also investigated through single crystal X-ray diffraction analysis and suggestted a distorted octahedral geometry around copper(II), where one N atom from 1,10-phenanthroline and three O atoms from three H2O molecules occupying the basal plane while another Nphen and one Cl atom remain at the apical positions. Thus, the presence of three coordinated waters and chloride group along with the counter chloride ion and water of crystallization is responsible for extensive hydrogen bonding present in the molecule. Thus, the complex forms a 3D gigantic H-bonded network. The two types of intermolecular O–H···Cl and O–H···O hydrogen bonding play the pivotal role in crystal packing and plausible conductivity mechanism through the π-π interacting supports. The electrical conductivity and optical properties were also measured and the results focus on the semiconducting nature of the complex with optical band gap (Egd) value 1.23 eV.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"43 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141803865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Ho3+ Substitution on Structural, Morphological, Optical, Electrical, Thermoelectrical and Magnetic Properties of MgCuHoxFe2-xO4 (0 < x < 0.030) System 取代 Ho3+ 对 MgCuHoxFe2-xO4 (0 < x < 0.030) 体系的结构、形态、光学、电学、热电和磁学特性的影响

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31894

M. Bhanu, D. Ravinder, Police Vishnuvardhan Reddy, K. Rajashekhar, G. Sunitha, G. Kumar, J. L. Naik, G. Vinod

{"title":"Impact of Ho3+ Substitution on Structural, Morphological, Optical, Electrical, Thermoelectrical and Magnetic Properties of MgCuHoxFe2-xO4 (0 < x < 0.030) System","authors":"M. Bhanu, D. Ravinder, Police Vishnuvardhan Reddy, K. Rajashekhar, G. Sunitha, G. Kumar, J. L. Naik, G. Vinod","doi":"10.14233/ajchem.2024.31894","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31894","url":null,"abstract":"A series of rare earth (Ho3+) doped magnesium-copper nanoferrites with the general chemical compositions of Mg0.5Cu0.5HoxFe2-xO4 (where x = 0.000, 0.005, 0.010, 0.015, 0.020, 0.025 and 0.030) was fabricated by citrate sol-gel auto-combustion technique. The fabricated materials were investigated through powder XRD, FESEM, EDX, HRTEM, FTIR, UV-Vis, DC resistivity, TEP and VSM for magnetic properties. The crystallite size of the samples was determined to be in the range of 33-40 nm with increased Ho3+ content and the powder-XRD investigations validated the spinel cubic structure of the samples with the space group Fd3m. The analysis demonstrated that the lattice constant was reduced from 8.403 to 8.356 Å and according to the FE-SEM micrographs, the morphology of the samples were found to be spherical. The HR-TEM micrographs show that average particle size decreases from 64 to 48 nm. The FTIR examination revealed that their ν1 and ν2 absorption bands were located between 412-401 cm–1 and 562-547 cm–1, respectively and the optical band gap was found to be 2.77-3.28 eV. In Mg-Cu nanoferrites with Ho doping, there was no obvious increase in the elasticity moduli. It was observed that the thermal energy required to transform the p-type Mg-Cu nanoferrites from semiconducting to n-type semiconducting behaviour increases with increasing Ho doping and composition. The M-H loop saturation magnetization (Ms), coercivity (Hc) and retentivity (Mr) values were all enhanced when the Ho3+ concentration increased and varied anisotropically with Ho doping. The findings of this study suggested that Mg-Cu ferrites doped with Ho3+ might be beneficial for magnetic resonance imaging in biomedicine.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"54 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141804663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Zinc-based Bimetallic Nanoparticles for the Degradation of Industrial Dyes 合成用于降解工业染料的锌基双金属纳米粒子

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31255

N. Srivastava, K. Raees

{"title":"Synthesis of Zinc-based Bimetallic Nanoparticles for the Degradation of Industrial Dyes","authors":"N. Srivastava, K. Raees","doi":"10.14233/ajchem.2024.31255","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31255","url":null,"abstract":"Textile dyes are a prominent source of coloured organic substances that present an increasingly concerning risk to biodiversity. This problem could be remediated by incorporating nanoparticles as photocatalysts in photodegradation activities. The photocatalytic degradation of brilliant blue and Amaranth dyes has been investigated using ZnO-Fe2O3 bimetallic nanoparticles (Zn-Fe BN) in an aqueous media under sun rays. The Zn-Fe BN was synthesized using a chemical synthesis technique utilizing FeCl3 and ZnSO4·7H2O as starting materials and further characterized using XRD, FTIR, SEM, EDAX and DLS techniques. The degradation rate was examined by recording the absorbance value via a UV-Vis spectrophotometer. The experimental results demonstrated that the synthesized Zn-Fe BN was an effective catalyst in removing the dyes from water. The decomposition rate was effective with variations in the reaction parameters. As the concentration of the NaOH solution was increased, an increment in the rate of degradation was observed simultaneously, as well as for different amounts of catalyst. Hence, the removal of textile dyes could be made easier by adopting the methodology.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"49 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141805184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sequestration of Heavy Metals from Water by Aegle marmelos (Bael) Leaves as Promising Biomaterial: Kinetic and Equilibrium Studies Aegle marmelos（桦树）叶作为有前途的生物材料对水中重金属的螯合作用：动力学和平衡研究

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31987

Indu Rani, Sachin Kumari, Sushila Singh, Bhagya Shree, Muskan, Manju

{"title":"Sequestration of Heavy Metals from Water by Aegle marmelos (Bael) Leaves as Promising Biomaterial: Kinetic and Equilibrium Studies","authors":"Indu Rani, Sachin Kumari, Sushila Singh, Bhagya Shree, Muskan, Manju","doi":"10.14233/ajchem.2024.31987","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31987","url":null,"abstract":"Heavy metals abatement from polluted water through the use of green biosorbents is a growing research area due to its renewability and inexpensive. This study investigates the idea of utilizing Aegle marmelos (Bael) leaves as a biosorbent for the removal of heavy metal ions Cd(II), Pb(II) and Cr(VI) from simulated wastewater. The surface area, functionality, surface morphology and elemental analysis of biosorbent were analyzed by BET, FTIR, FE-SEM with EDX, respectively. Batch studies were done for biosorption of heavy metal ions. The maximum biosorption capacity of heavy metal ions were optimized by varying the pH (2-9), metal ions concentration (20-80 mg/L), biosorbent dose (0.02-0.2 g/L) and contact time (30-210 min). The Langmuir adsorption isotherms and pseudo-second order kinetics models were the most suitable for the biosorption of heavy metal ions and the maximum adsorption capacity was 11.85, 10.35 and 8.55 mg/g for Pb(II), Cd(II) and Cr(VI) heavy metals, respectively at optimized time 120 min. Thermodynamics studies revealed that biosorption of Pb(II), Cd(II) and Cr(VI) on A. marmelos biosorbent was exothermic and spontaneous in nature. Finally, the removal efficiency of A. marmelos biosorbent against the all three metals were found maximum for Pb(II) followed by Cd(II) and Cr(VI) due to the variations in hydration energy of these heavy metals.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"44 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141803987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of Ground State and Excited State Dipole Moments of (5-Amino-1-phenylindolizin-3-yl)(4-methoxyphenyl)methanone (5-氨基-1-苯基吲哚嗪-3-基)(4-甲氧基苯基)甲酮的基态和激发态偶极矩估计

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31661

Dayanand Lalasangi, S. Hanagodimath, Mangesh S. Jadhav, Tairabi Khanadal, B. Padmashali

引用次数: 0

Co(II), Ni(II), Cu(II) and Zn(II) Metal Complexes of Hydrazone Schiff Base Ligand: Synthesis, Characterization, Thermal Behaviour, Antioxidant and Antimicrobial Studies 腙席夫碱配体的 Co(II)、Ni(II)、Cu(II) 和 Zn(II) 金属配合物：合成、表征、热行为、抗氧化和抗菌研究

Asian Journal of Chemistry Pub Date : 2024-07-25 DOI: 10.14233/ajchem.2024.31669

Tushar S. Umasare, Sanjay K. Patil, Jyotsna G. Pargaonkar

{"title":"Co(II), Ni(II), Cu(II) and Zn(II) Metal Complexes of Hydrazone Schiff Base Ligand: Synthesis, Characterization, Thermal Behaviour, Antioxidant and Antimicrobial Studies","authors":"Tushar S. Umasare, Sanjay K. Patil, Jyotsna G. Pargaonkar","doi":"10.14233/ajchem.2024.31669","DOIUrl":"https://doi.org/10.14233/ajchem.2024.31669","url":null,"abstract":"The metal(II) complexes of ML type of Co(II), Ni(II), Cu(II) and Zn(II) were synthesized using hydrazone Schiff base, N',N\"-((1E,2E)-acenaphthylene-1,2-diylidene)bis(2-hydroxy benzohydrazide), which was synthesized by the condensation of acenaphthaquinone and 2-hydroxy benzohydrazide (1:2 molar ratio) in ethanol and characterized by various spectroscopic and analytical techniques, including UV-visible, FTIR, 1H NMR, 13C NMR, LC-MS, TGA-DSC, powder XRD and atomic absorption measurements. The magnetic susceptibility and electronic spectral data suggested that the Ni(II) and Cu(II) complexes have octahedral geometry, while the Co(II) and Zn(II) complexes have tetrahedral geometry. It has also been found that all the metal(II) complexes are paramagnetic, except Zn(II) complex. The molar conductance values indicated that all the metal(II) complexes are non-electrolytes in DMSO solvent. The stability of metal(II) complexes, the absence of coordinated and lattice water molecules in complexes and the proposed formula were all validated by the thermal analysis. All the compounds have average crystallite sizes on the nanoscale, according to powder XRD results. All of the compounds were tested for their in vitro antimicrobial activities against six bacteria (B. subtilis, S. aureus, Corynebacterium, P. aeruginosa, K. pneumoniae and E. coli) and three fungi (C. albicans, A. flavus and A. niger) at two different concentrations.","PeriodicalId":8494,"journal":{"name":"Asian Journal of Chemistry","volume":"47 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141805288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0