Journal of the Indian Chemical Society最新文献_第3页

Naked eye detection of anions: Dihydrazone receptor-based visual sensing 肉眼检测阴离子：基于二腙受体的视觉传感

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-16 DOI: 10.1016/j.jics.2024.101431

{"title":"Naked eye detection of anions: Dihydrazone receptor-based visual sensing","authors":"","doi":"10.1016/j.jics.2024.101431","DOIUrl":"10.1016/j.jics.2024.101431","url":null,"abstract":"<div><div>In this study, we designed and synthesized a novel colorimetric sensor for fluoride ions by integrating a thienodicarbohydrazide framework with salicylaldehyde, resulting in a unique bis-hydrazone-phenol receptor. This sensor exhibited exceptional selectivity for fluoride and acetate ions in nonaqueous environments, with detection visible to the naked eye. Upon interaction with fluoride ions, the receptor underwent a significant red shift in its UV–Visible absorption spectrum, moving from an absorption maximum at 332 nm–380 nm, signalling the recognition event. Acetate ions induced a similar shift. The binding interactions were thoroughly investigated, with a Jobs plot revealing a 1:1 receptor-anion complex formation with fluoride ions and a 1:2 complex with acetate ions. Further validation came from <sup>1</sup>H NMR titration, which confirmed the presence of hydrogen bonding interactions between the receptor and the ions. The receptor demonstrated remarkable binding constants of 5.2 × 10⁴ M<sup>−2</sup> for acetate and 1.6 × 10⁴ M<sup>−1</sup> for fluoride ions, highlighting its strong and selective affinity. Fluorescence titrations further confirmed the receptor's potential as a chemo sensor, showing distinct emission changes in the presence of fluoride and acetate ions. This study not only underscores the receptor's capability for visual detection of fluoride ions in non-aqueous systems but also paves the way for its application in diverse analytical and environmental settings.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142538230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rheological behavior of deep eutectic solvent promoted methane hydrate formation 深共晶溶剂促进甲烷水合物形成的流变行为

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-16 DOI: 10.1016/j.jics.2024.101435

引用次数: 0

Study on corrosion behavior and first-principle analysis of M50 steel in lubricating oil contaminated by salt water M50 钢在受盐水污染的润滑油中的腐蚀行为研究和第一原理分析

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-15 DOI: 10.1016/j.jics.2024.101436

{"title":"Study on corrosion behavior and first-principle analysis of M50 steel in lubricating oil contaminated by salt water","authors":"","doi":"10.1016/j.jics.2024.101436","DOIUrl":"10.1016/j.jics.2024.101436","url":null,"abstract":"<div><div>The corrosive wear of M50 steel in lubricating oil contaminated with saline is a form of wear that often occurs within the main shaft bearings of aviation engines carried by aircraft working at sea. In the present paper, the corrosion behavior of M50 steel in lubricating oil contaminated with saline was studied. The open-circuit potential, polarization curve and impedance spectrum were analyzed by rotating electrochemical corrosion wear test. A three-layer interface microscopic molecular model was established with Materials Studio to simulate the dynamic corrosion evolution process of M50 steel self-matching pairs and the adsorption energy was calculated. The results show that the corrosion type is pitting corrosion. With the increase of saline concentration, the corrosion area becomes wider and shallower, and the size of the pitting core gradually decreases. The weight loss of M50 steel increases over time, but the trend slows down, which is also shown in the MS simulation results. Electrochemical tests show that the tribocorrosion of M50 steel is related to load, speed. As the load increases, the corrosion rate decreases. And, as the speed increases, the corrosion rate increases. This has practical significance for extending the understanding of tribocorrosion of M50 steel in marine atmospheric environments.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142538125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Properties of rhodamine B fluorescent probe Y2ST 罗丹明 B 荧光探针 Y2ST 性能研究

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-14 DOI: 10.1016/j.jics.2024.101420

引用次数: 0

Mitigating pesticide pollution: A comprehensive study on the biological treatment of clodinafop-propargyl and organic load in agricultural wastewater using a moving bed biofilm reactor (MBBR) 减轻农药污染：利用移动床生物膜反应器（MBBR）对农业废水中的氯氟吡氧乙酸和有机负荷进行生物处理的综合研究

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101422

{"title":"Mitigating pesticide pollution: A comprehensive study on the biological treatment of clodinafop-propargyl and organic load in agricultural wastewater using a moving bed biofilm reactor (MBBR)","authors":"","doi":"10.1016/j.jics.2024.101422","DOIUrl":"10.1016/j.jics.2024.101422","url":null,"abstract":"<div><div>The widespread use of pesticides in modern agriculture poses significant threats to public health and the environment. Addressing the growing environmental and economic concerns requires effective strategies for removing and mitigating agricultural toxins. This study evaluates the efficiency of a Moving Bed Biofilm Reactor (MBBR) in degrading clodinafop-propargyl (CF) and reducing organic matter in a controlled laboratory setting. The research focuses on initial CF concentration and hydraulic retention time (HRT) as key factors influencing removal efficiency. The biodegradation of CF was systematically carried out using the MBBR bioreactor. Results demonstrated maximum removal efficiencies of 82.51 % for CF, 88.78 % for Chemical Oxygen Demand (COD), 89.58 % for Total Phosphorus (TP), and 86.31 % for Total Nitrogen (TN). These findings highlight the MBBR's strong capability in eliminating CF and reducing nitrogen in wastewater, positioning it as a cost-effective and environmentally sustainable solution for pesticide pollution. The novelty of this study lies in its detailed examination of the MBBR's performance under varying operational conditions, providing critical insights into its efficiency and optimization. Overall, this research offers valuable contributions to environmental engineering, presenting a promising method for treating pesticide-laden agricultural wastewater and supporting sustainable farming practices.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on bacterial inactivation using green synthesized photocatalytically active TiO2, MgO, TiO2/MgO nanoparticles 利用绿色合成的光催化活性 TiO2、MgO、TiO2/MgO 纳米粒子灭活细菌的研究

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101425

{"title":"A study on bacterial inactivation using green synthesized photocatalytically active TiO2, MgO, TiO2/MgO nanoparticles","authors":"","doi":"10.1016/j.jics.2024.101425","DOIUrl":"10.1016/j.jics.2024.101425","url":null,"abstract":"<div><div><em>Madhuca longifolia</em> (Mahua) flower extracts were utilised to perform the green synthesis of titanium dioxide (TiO<sub>2</sub>), magnesium oxide (MgO) nanoparticles, and a nanocomposite consisting of TiO<sub>2</sub>/MgO. Mahua flower extracts were used as both reducing and capping agents in a sol-gel synthesis method. The effectiveness of the green reducing agent in improving the surface structure of the green nanoparticles was demonstrated. FTIR, XRD, FESEM, and UV vis spectroscopy were employed to analyse the successful synthesis of TiO<sub>2</sub>, MgO, and TiO<sub>2</sub>/MgO nanocomposites. A study was done to examine the process of employing these nanoparticles to deactivate <em>Escherichia coli</em> (E. coli) by photocatalysis. The effectiveness of these nanoparticles in inhibiting the growth of the bacterial species was demonstrated. The optimisation of the bacterial inactivation experiment was performed using Design Expert's RSM CCD model on all three nanoparticle samples. The optimisation study investigated the impact of nanoparticle concentration and exposure duration on the inhibition of bacterial growth. The highest levels of percent inhibition (%I) were recorded as 85.4 % for TiO<sub>2</sub>/MgO, 82.8 % for TiO<sub>2</sub>, and 65.14 % for MgO at a concentration of 50 mg/2 ml and an exposure time of 2 h. The effectiveness of these nanoparticles in exhibiting inhibition has been limited, indicating their prospective use in the advancement of antimicrobial coatings and other applications, such as disinfectants, in the future.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrogen doped TIO2/g-C3N4 nanocatalyst for photodegradation of methylene blue dye 掺氮 TIO2/g-C3N4 纳米催化剂用于亚甲基蓝染料的光降解

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101424

{"title":"Nitrogen doped TIO2/g-C3N4 nanocatalyst for photodegradation of methylene blue dye","authors":"","doi":"10.1016/j.jics.2024.101424","DOIUrl":"10.1016/j.jics.2024.101424","url":null,"abstract":"<div><div>In this study, the ethanol dispersion procedure was implemented to prepare the g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocatalyst structure. Sol-gel synthesis is utilized for synthesizing <em>N</em>–TiO<sub>2</sub> and g-C<sub>3</sub>N<sub>4</sub> via urea thermal decomposition. Physicochemical properties of produced photocatalysts were revealed using PL imaging, UV–vis DRS, XRD, FTIR, SEM, BET, and TEM. Evaluation of photocatalytic activity of synthetic photocatalysts by exposure to sunlight and degradation of methylene blue (MB) dye. g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> NCs showed excellent photocatalytic activity, reaching 96 % MB degradation efficiency in 80 min. g-C<sub>3</sub>N<sub>4</sub> and <em>N</em>–TiO<sub>2</sub> doped form a nanocomposite structure that increases photocatalytic activity, affecting charge separation performance and service life. The system also exhibits the ability to collect visible and ultraviolet light. Even after four consecutive cycles, the efficiency of the MB is still above 85 %. Capture experiments showed that the decomposition of MB was mainly caused by h<sup>+</sup> and O2<sup>2−</sup> radicals. The results of kinetic investigations indicate that the degradation rate of g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocomposites surpasses that of <em>N</em>–TiO<sub>2</sub> nanoparticles.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into phthalocyanine blue pigment dispersion: Modeling particle size distribution and grinding rate constants 对酞菁蓝颜料分散的见解：粒度分布和研磨速率常数建模

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101428

{"title":"Insights into phthalocyanine blue pigment dispersion: Modeling particle size distribution and grinding rate constants","authors":"","doi":"10.1016/j.jics.2024.101428","DOIUrl":"10.1016/j.jics.2024.101428","url":null,"abstract":"<div><div>The study presents an advanced mathematical model aimed at enhancing the understanding of pigment dispersion processes, with a particular focus on analyzing the dynamics of particle size distribution and determining grinding rate constants. Pigmented dispersions are crucial in various industries, including paints, coatings, and inks, where achieving optimal particle size distribution is vital for product quality. This investigates the relationship between grinding duration and pigment dispersion, aiming to establish empirical equations for the grinding rate constant as a function of particle size distribution and feed rate. Through experimental validation, the developed kinetic model provides insights into the dynamics of pigment dispersion and offers predictive capabilities for optimizing dispersion processes. Understanding the underlying mechanisms of pigment dispersion through mathematical modeling contributes to enhancing the performance and quality of final products in diverse industrial applications. The development of a new kinetic model, effective mathematical model is proposed to accurately simulate the evolution was applicable for the particle size from 32.67 to 122.4 nm distribution of pigment during comminution processes. In addition, it was observed that the kinetic model was not applicable for the particle size from 166.2 to 190.1 nm and also confirmed that the grinding was completed within 40 min, which was possible for uniform particle size distribution.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical and electrochemical performance of Mn-doped zinc oxide electrode material for asymmetric supercapacitor 用于不对称超级电容器的掺锰氧化锌电极材料的物理和电化学性能

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101416

{"title":"Physical and electrochemical performance of Mn-doped zinc oxide electrode material for asymmetric supercapacitor","authors":"","doi":"10.1016/j.jics.2024.101416","DOIUrl":"10.1016/j.jics.2024.101416","url":null,"abstract":"<div><div>Manganese-doped zinc oxide has emerged as a promising material for high-performance supercapacitors (SCs) due to its enhanced electrochemical properties, including improved charge storage capacity and cycling stability. Pristine Zinc oxide (ZO) and Manganese (Mn) doped (2 wt % and 4 wt %) zinc oxide (hereby labeled: ZO, 2MZO, and 4MZO) derivatives have been synthesized via an aqueous sol-gel-based co-precipitation method. The physical characterizations of synthesized samples have been performed using TGA, XRD, FESEM, and BET. The XRD has confirmed the phase pure hexagonal wurtzite structure synthesis of ZO, 2MZO, and 4MZO samples. The FE-SEM images revealed that synthesized material had shown the mixed morphology as polyhedral particles, rods, and flakes in the nano region. Mn-doped has increased specific surface by 132 % compared to bare ZO. The electrochemical characterization techniques, including CV, GCD, and EIS, have been used to access electrochemical parameters using an aqueous 4 M KOH electrolyte. A detailed CV analysis was also carried out to investigate the capacitive contribution of the material in cycling. The electrochemical characterization techniques (CV, GCD, and EIS) have been performed to access electrochemical parameters using an aqueous 4 M KOH electrolyte. The 4MZO electrode material has shown an enhancement in specific capacitance (164.28 Fg<sup>-1</sup>) compared to pristine ZO (42.83 Fg<sup>-1</sup>). The EIS study revealed that the 4MZO has the lowest internal impedance 0.30 Ω compared to 0.70 Ω, and 2.60 Ω for 2MZO and ZO, respectively.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of varying volumes of anaerobic microbial inoculum on biodegradation and biogas production from black water 不同体积的厌氧微生物接种物对黑水生物降解和沼气生产的影响

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI: 10.1016/j.jics.2024.101426

{"title":"Effect of varying volumes of anaerobic microbial inoculum on biodegradation and biogas production from black water","authors":"","doi":"10.1016/j.jics.2024.101426","DOIUrl":"10.1016/j.jics.2024.101426","url":null,"abstract":"<div><div>Unfettered discharge of untreated black water is one of the raging environmental issues which needs to be addressed especially in many developing and third-world countries. Black water is rich in organic compounds, elements such as nitrogen and phosphorous, and harmful faecal coliforms which makes it a major threat to the environment. The present study focuses on the use of an inhouse anaerobic microbial inoculum for the treatment of black water with an emphasis on decentralized treatment systems. The effects of varying volumes of inoculum (5 %, 10 %, 20 % & 30 %) for the treatment of black water was studied. Various parameters such as pH, total solids (TS), volatile solids (VS), chemical oxygen demand (COD) and biogas production were recorded. 10 % inoculum yielded the maximum amount of biogas. The biogas volume varied from 1046 mL–1180 mL depending on the experiments carried out using either fresh inoculum or acclimatized old inoculum. The inoculum could also be reused for sustained biodegradation and biogas production process which makes its use economic and apt as inoculum for reactors used in decentralized treatment processes. An attempt was also made in this work to reduce the input COD imparted via the inoculum itself by letting the larger and heavier solids to settle. Nevertheless, it was observed that the best working inoculum was the 10 % whole inoculum in terms of biogas production and COD removal.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0