Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i3.69433
{"title":"Removal of Chlorpyrifos, Malathion, Dichlorvos and Profenofos by nanocomposite containing AgNP","authors":"","doi":"10.56042/ijct.v30i3.69433","DOIUrl":"https://doi.org/10.56042/ijct.v30i3.69433","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i1.64785
{"title":"Green carbon dots from poppy seeds with conjugated hydrogel hybrid films for detection of Fe3+","authors":"","doi":"10.56042/ijct.v30i1.64785","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.64785","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i1.65960
{"title":"Methyl orange adsorption by modified montmorillonite nanomaterials: Characterization, kinetic, isotherms and thermodynamic studies","authors":"","doi":"10.56042/ijct.v30i1.65960","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.65960","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i6.1325
Natural polymer-based hydrogels are of great interest to research community owing to their inherent characters of environment friendliness and biodegradability. Current work aims to synthesize lignosulfonate grafted sodium acrylate hydrogel (LS-g-SAH) and investigate its application in urea release behaviour. The hydrogel has been characterized by different techniques. The release kinetics has been analyzed by using a UV-visible spectrophotometer. The optimized composition of lignosulfonate, KPS, and N,N’-MBA has shown the highest water absorbency of 560 g g-1 in distilled water. The equilibrium swollen LS-g-SAH 12 hydrogel has slowly released 60% of loaded urea in 24 h and followed first-order release kinetics. Soil treatment with hydrogel has shown a significant effect in reducing the water evaporation rate. It also improved the seed germination and average height of wheatgrass. The synthesized LS-g-SAH is, thus, expected to have potential application in modern sustainable agriculture.
天然聚合物基水凝胶因其固有的环境友好性和生物可降解性而受到研究界的广泛关注。本文旨在合成木质素磺酸接枝丙烯酸钠水凝胶(LS-g-SAH)并研究其在尿素释放中的应用。用不同的技术对水凝胶进行了表征。用紫外可见分光光度计对其释放动力学进行了分析。优化后的木质素磺酸盐、KPS和N,N ' -MBA在蒸馏水中的吸水性最高，为560 g g-1。平衡膨胀的LS-g-SAH 12水凝胶在24 h内缓慢释放60%的负载尿素，并遵循一级释放动力学。水凝胶处理在降低水分蒸发速率方面有显著效果。对小麦草的种子发芽率和平均株高也有促进作用。因此，合成的LS-g-SAH在现代可持续农业中具有潜在的应用前景。
{"title":"Synthesis, characterization and application of Lignosulphonate-g- poly(sodium acrylate) hydrogel","authors":"","doi":"10.56042/ijct.v30i6.1325","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.1325","url":null,"abstract":"Natural polymer-based hydrogels are of great interest to research community owing to their inherent characters of environment friendliness and biodegradability. Current work aims to synthesize lignosulfonate grafted sodium acrylate hydrogel (LS-g-SAH) and investigate its application in urea release behaviour. The hydrogel has been characterized by different techniques. The release kinetics has been analyzed by using a UV-visible spectrophotometer. The optimized composition of lignosulfonate, KPS, and N,N’-MBA has shown the highest water absorbency of 560 g g-1 in distilled water. The equilibrium swollen LS-g-SAH 12 hydrogel has slowly released 60% of loaded urea in 24 h and followed first-order release kinetics. Soil treatment with hydrogel has shown a significant effect in reducing the water evaporation rate. It also improved the seed germination and average height of wheatgrass. The synthesized LS-g-SAH is, thus, expected to have potential application in modern sustainable agriculture.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i6.6546
In this study, the adsorptive removal of methylene blue (MB) from aqueous solutions onto nickel oxide (NiO) modified montmorillonite (NiO-Mt) has been studied and compared with that of commercial bentonite. The influences of various experimental factors such as contact time, adsorbent dosage, pH of solution, initial dye concentration and temperature have been investigated. Batch adsorption studies has manifested that the maximum adsorption capacity of MB is around 99.9 mg/g in 10 min with 25 mg adsorbent mass at an initial concentration of 100 mg/L at ambient temperature of 25°C and natural pH of solution (pH = 5.8 for NiO-Mt and pH = 6.3 for commercial bentonite). The adsorption kinetics and isotherms are well fitted by pseudo-second order and Langmuir models, respectively. The thermodynamic parameters such as the changes in Gibbs free energy, enthalpy, and entropy are determined. The MB adsorption is physical, spontaneous and exothermic for both adsorbents.
{"title":"Removal of methylene blue dye from aqueous media by adsorption using nickel oxide modified montmorillonite composite","authors":"","doi":"10.56042/ijct.v30i6.6546","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.6546","url":null,"abstract":"In this study, the adsorptive removal of methylene blue (MB) from aqueous solutions onto nickel oxide (NiO) modified montmorillonite (NiO-Mt) has been studied and compared with that of commercial bentonite. The influences of various experimental factors such as contact time, adsorbent dosage, pH of solution, initial dye concentration and temperature have been investigated. Batch adsorption studies has manifested that the maximum adsorption capacity of MB is around 99.9 mg/g in 10 min with 25 mg adsorbent mass at an initial concentration of 100 mg/L at ambient temperature of 25°C and natural pH of solution (pH = 5.8 for NiO-Mt and pH = 6.3 for commercial bentonite). The adsorption kinetics and isotherms are well fitted by pseudo-second order and Langmuir models, respectively. The thermodynamic parameters such as the changes in Gibbs free energy, enthalpy, and entropy are determined. The MB adsorption is physical, spontaneous and exothermic for both adsorbents.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An investigation has been carried out on heat and mass transport phenomena for mixed-convection flow over a vertically non-Darcy Forchheimer porous stretching/shrinking sheet considering the Soret - Dufour effects. With consideration of the appropriate similarity framework, the fundamental governing flow equations are converted into a system of non-dimensional equations. The bvp4c, a built-in solver of MATLAB software, is utilized to compute the numerical results of the flow problem. The present model is validated with previously published literature. The impacts of several related flow parameters on velocity, temperature, and concentration profiles have been displayed graphically. Also, the mass and heat transfer rates along with the coefficients of skin friction are calculated and discussed numerically. It is found that an increment in the thermal radiation parameter increases the fluid temperature, and the concentration gradient boosts up for the enhancement of the Soret number.
{"title":"Mixed convection flow over non-Darcy porous stretching/shrinking sheet","authors":"","doi":"10.56042/ijct.v30i6.487","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.487","url":null,"abstract":"An investigation has been carried out on heat and mass transport phenomena for mixed-convection flow over a vertically non-Darcy Forchheimer porous stretching/shrinking sheet considering the Soret - Dufour effects. With consideration of the appropriate similarity framework, the fundamental governing flow equations are converted into a system of non-dimensional equations. The bvp4c, a built-in solver of MATLAB software, is utilized to compute the numerical results of the flow problem. The present model is validated with previously published literature. The impacts of several related flow parameters on velocity, temperature, and concentration profiles have been displayed graphically. Also, the mass and heat transfer rates along with the coefficients of skin friction are calculated and discussed numerically. It is found that an increment in the thermal radiation parameter increases the fluid temperature, and the concentration gradient boosts up for the enhancement of the Soret number.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i3.69307
R. J. Blessikha, C. Raj
There are several potential uses for green nanoparticle amalgamated in the medicinal and environmental sciences. Green synthesis specifically tries to reduce the use of harmful chemicals. For instance, it is often acceptable to employ organic resources like plants. In a single green synthesis step, biomolecules found in plant extract may transform metal ions into nanoparticles. This naturally occurring conversion of a metal ion to a base metal may be carried out quickly, conveniently, and at ambient temperature and pressure. In the current study, the production of CuNPs utilizing different-sized Nelumbo nucifera leaf extract has been reported. In order to determine how CuNPs generated, several techniques including UV-Visible, XRD, SEM, EDAX, FTIR, and cyclic voltammetry studies were used. The UV-Visible spectra of the amalgamated CuNPs show a peak between 250 and 450 nm. The morphology of CuNPs are spike in shapes with sizes of 33nm for 10mM and 25nm for 50mM, and the nanoparticles are crystalline in nature, according to the XRD and SEM examinations. The amalgamated CuNPs contain 37.55% copper, according to EDAX, and FTIR shows the absorption peak of copper at 1640 and 576 cm -1 .The oxidation and reduction of amalgamated CuNPs are visible by cyclic voltammetry. CuNPs have been put to the test against Staphylococcus aureus, Staphylococcus epidermidis, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa for their antibacterial properties. CuNPs show the greatest zone of inhibition when used against Pseudomonas aeruginosa . Aspergillus flavus and Candida albicans have been used as test subjects for the antifungal testing of CuNPs. The CuNPs against Candida albicans show the largest zone of inhibition. CuNPs demonstrate strong antibacterial and antifungal efficacy, which means they have a considerable potential for application in the development of medications used to treat bacterial and fungal infections. The electrical potential difference of amalgamated CuNPs has been measured using a voltmeter and it is found that as concentration rises, so does the electrical potential difference.
绿色纳米颗粒在医学和环境科学中有几种潜在的用途。绿色合成特别试图减少有害化学物质的使用。例如，使用植物等有机资源通常是可以接受的。在单一的绿色合成步骤中，植物提取物中的生物分子可以将金属离子转化为纳米粒子。这种自然发生的金属离子到贱金属的转化可以在环境温度和压力下快速、方便地进行。在目前的研究中，已经报道了利用不同大小的荷叶提取物生产乳香多糖的方法。为了确定CuNPs是如何生成的，使用了几种技术，包括uv -可见，XRD, SEM, EDAX, FTIR和循环伏安法研究。其紫外可见光谱在250 ~ 450 nm之间有一个峰值。XRD和SEM分析表明，纳米颗粒为晶体状，粒径为33nm (10mM)和25nm (50mM)。经EDAX测定，铜的含量为37.55%，FTIR在1640和576 cm -1处发现了铜的吸收峰，循环伏安法可观察到铜的氧化和还原。CuNPs对金黄色葡萄球菌、表皮葡萄球菌、肺炎克雷伯菌、大肠杆菌和铜绿假单胞菌的抗菌性能进行了试验。当用于铜绿假单胞菌时，CuNPs显示出最大的抑制区。以黄曲霉和白色念珠菌为试验对象，对其进行了抗真菌试验。对白色念珠菌的抑制区最大。CuNPs显示出强大的抗菌和抗真菌功效，这意味着它们在开发用于治疗细菌和真菌感染的药物方面具有相当大的应用潜力。用电压表测量了其电位差，发现随着浓度的升高，电位差也随之升高。
{"title":"Amalgamation of copper nanoparticles of assorted size using Nelumbo nucifera (lotus) leaf and its bioelectrical assay","authors":"R. J. Blessikha, C. Raj","doi":"10.56042/ijct.v30i3.69307","DOIUrl":"https://doi.org/10.56042/ijct.v30i3.69307","url":null,"abstract":"There are several potential uses for green nanoparticle amalgamated in the medicinal and environmental sciences. Green synthesis specifically tries to reduce the use of harmful chemicals. For instance, it is often acceptable to employ organic resources like plants. In a single green synthesis step, biomolecules found in plant extract may transform metal ions into nanoparticles. This naturally occurring conversion of a metal ion to a base metal may be carried out quickly, conveniently, and at ambient temperature and pressure. In the current study, the production of CuNPs utilizing different-sized Nelumbo nucifera leaf extract has been reported. In order to determine how CuNPs generated, several techniques including UV-Visible, XRD, SEM, EDAX, FTIR, and cyclic voltammetry studies were used. The UV-Visible spectra of the amalgamated CuNPs show a peak between 250 and 450 nm. The morphology of CuNPs are spike in shapes with sizes of 33nm for 10mM and 25nm for 50mM, and the nanoparticles are crystalline in nature, according to the XRD and SEM examinations. The amalgamated CuNPs contain 37.55% copper, according to EDAX, and FTIR shows the absorption peak of copper at 1640 and 576 cm -1 .The oxidation and reduction of amalgamated CuNPs are visible by cyclic voltammetry. CuNPs have been put to the test against Staphylococcus aureus, Staphylococcus epidermidis, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa for their antibacterial properties. CuNPs show the greatest zone of inhibition when used against Pseudomonas aeruginosa . Aspergillus flavus and Candida albicans have been used as test subjects for the antifungal testing of CuNPs. The CuNPs against Candida albicans show the largest zone of inhibition. CuNPs demonstrate strong antibacterial and antifungal efficacy, which means they have a considerable potential for application in the development of medications used to treat bacterial and fungal infections. The electrical potential difference of amalgamated CuNPs has been measured using a voltmeter and it is found that as concentration rises, so does the electrical potential difference.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i1.61853
{"title":"Characterisation and microbial activity of neem oil nano-emulsions formulated by phase inversion temperature method","authors":"","doi":"10.56042/ijct.v30i1.61853","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.61853","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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