Indian Journal of Chemical Technology最新文献_第8页

Adsorption study on the removal of ciprofloxacin in aqueous solution by an acidic ion exchange resin with bifunctional group 双官能团酸性离子交换树脂对水溶液中环丙沙星的吸附研究

IF 0.5 4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i1.68824

引用次数: 0

Studies on characteristics and corrosion behaviour of chitosan/eudragit RS100 bilayer film coated Ti-6Al-4V Ti-6Al-4V包覆壳聚糖/环氧树脂RS100双层膜的特性及腐蚀行为研究

IF 0.5 4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i4.69328

K. Shreevani, B. Narayana, B. Sarojini, A. Ganesha, B. Praveen, B. Devendra, Sushmitha

{"title":"Studies on characteristics and corrosion behaviour of chitosan/eudragit RS100 bilayer film coated Ti-6Al-4V","authors":"K. Shreevani, B. Narayana, B. Sarojini, A. Ganesha, B. Praveen, B. Devendra, Sushmitha","doi":"10.56042/ijct.v30i4.69328","DOIUrl":"https://doi.org/10.56042/ijct.v30i4.69328","url":null,"abstract":"In the present study, implant material Ti-6Al-4V has been coated with eudragit (EU) and chitosan (CH) polymers to enhance surface properties. The deposition of polymer coating has covered the surface cracks to a significant level and the fact has been confirmed by FE-SEM coupled with EDAX wherein the atomic percentage of Ti (99.90%) in non-coated surface has been decreased markedly to 0.42% after coating. Scratch resistance and adhesion power of bilayer coating has been increased as indicated by the higher critical loads Lc 1 (16.71 N), Lc 2 (17.56 N), Lc 3 (17.96 N) when a progressive load of 1 N to 20 N is applied over the coated surface. Further, Electrochemical impedance spectroscopy (EIS) and potentiodynamic-polarization studies have shown that the value of polarization resistance is inversely proportional to the corrosion rate. Thus decrease in the corrosion rate from 107.5×10 -2 (mm year -1 ) for the non-coated alloy to 2.88×10 -2 (mm year -1 ) for CH/EU coating demonstrated that coating enhanced the corrosion resistance of the alloy in the physiological condition. The in vitro antibacterial test conducted against S. aureus, B. subtilis, P. vulgaris and P. auregenosa has shown a significant inhibition zone of 9 mm, 6 mm, 7 mm and 10 mm, respectively, thus indicating the possible application of the polymeric coating material on the dental implants.","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":"70701655","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}

引用次数: 1

Development of enhanced 3D flower like Gd doped NiO (GNO) based LPG gas sensor 基于Gd掺杂NiO (GNO)的增强型三维花状LPG气体传感器的研制

IF 0.5 4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i2.63383

引用次数: 0

Antibacterial property of synthetic upper leather treated by garlic and ginger peels extracts 大蒜姜皮提取物处理合成面革的抗菌性能

IF 0.5 4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i4.63289

Awoke Fenta Wodag, B. Tadesse, Tewachew biresaw, Tewodros Dessale, Fitsum Etefa, Ahmed Zerihun, Teshome Kebede

{"title":"Antibacterial property of synthetic upper leather treated by garlic and ginger peels extracts","authors":"Awoke Fenta Wodag, B. Tadesse, Tewachew biresaw, Tewodros Dessale, Fitsum Etefa, Ahmed Zerihun, Teshome Kebede","doi":"10.56042/ijct.v30i4.63289","DOIUrl":"https://doi.org/10.56042/ijct.v30i4.63289","url":null,"abstract":"The garlic and ginger peels have been thrown as a waste. Nowadays researchers have been trying to investigate the antimicrobial properties of garlic and ginger peels extracts. Nevertheless, the effects of these materials on synthetic leather have not been experimented. The study aims at antimicrobial treatment of synthetic leather by the peels extracts and examining it against the staphylococcus epidermis bacterium. The peels have been collected in Bahir Dar city, Ethiopia, dried in the oven for one hour at 104°C, weighed and grounded in a grinder with a mesh size of 50-300 mesh. For both materials, 40 g of peel powder has been dissolved in 400 mL of ethanol solvent and stirred by a magnetic stirrer and then extracted by ultrasonic extraction method. Leather samples have been treated by extracted peels (5%, 15% and 20%) together with citric acid as a binder and soap as wetting agent. The antimicrobial properties of the treated samples have been assessed by a disc diffusion test method. The garlic peel extract at all concentrations levels has a wider inhibition zone indicating that garlic peel extract is more efficient at inhibiting Staphylococcus epidermis growth than ginger peel. Therefore; it could be used as antimicrobial treatment of synthetic leather.","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":"70702031","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}

引用次数: 0

Isotherm studies on removal of lead(II) ions from wastewater by magnetic carbon synthesised from Euphorbia hirta leaf extract 以大戟叶提取物为原料合成磁性碳去除废水中铅离子的等温研究

4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i5.5214

引用次数: 0

Enhanced electrochemical performance of manganese oxide nanocomposites for supercapacitor application 用于超级电容器的氧化锰纳米复合材料的电化学性能增强

4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i5.5206

引用次数: 0

Comparative study of ZnO-TiO2 nanocomposites synthesized by ultrasound and conventional methods for the degradation of methylene blue dye 超声合成ZnO-TiO2纳米复合材料与常规方法降解亚甲基蓝染料的比较研究

4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i5.5200

引用次数: 0

A study on entropy generation of hydromagnetic oscillating flow of a diamond-ethylene glycol+water based couple stress nanofluid in a vertical channel in the presence of Joule heating and thermal radiation 在焦耳加热和热辐射作用下，金刚石-乙二醇+水基偶联应力纳米流体在垂直通道中磁振荡流动的熵产研究

4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i6.6551

{"title":"A study on entropy generation of hydromagnetic oscillating flow of a diamond-ethylene glycol+water based couple stress nanofluid in a vertical channel in the presence of Joule heating and thermal radiation","authors":"","doi":"10.56042/ijct.v30i6.6551","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.6551","url":null,"abstract":"The current work communicates the entropy generation analysis of oscillating flow of magnetohydrodynamic couple stress nanofluid in a vertical channel. The main objective of present study is to examine the entropy analysis of a magnetohydrodynamic couple stress nanofluid. In this study, water and ethylene glycol (50:50) and diamond are used as the base fluid and nanoparticles, respectively. The effects of radiative heat, Ohmic, and viscous dissipation are all considered. By employing the perturbation process, the governing partial differential equations are transformed into the set of ordinary differential equations, which are then deciphered by implementing the Runge-Kutta fourth-order scheme with shooting technique. The obtained outcomes reveal that, amplifying viscous dissipation promising the temperature whereas the reverse is true for the influence of couple stress viscosity and Hartmann number. Heat transfer rate is decelerating with the boost up in Hartmann number at the walls while it is accelerating with the increment in viscous dissipation at the right wall. Entropy is escalating for intensifying viscous dissipation, and thermal radiation whereas the reverse is true for the impression of couple stress viscosity, and volume fraction of nanoparticles. Bejan number is falling for escalating volume fraction of nanoparticles, and viscous dissipation while it is enhancing with escalation in couple stress parameter.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"27 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":"135611792","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}

引用次数: 0

Oxidative degradation of phenol in aqueous solution by using heat, ZVI, AC, heat/ZVI, or heat/AC activated persulfate 用热、ZVI、AC、热/ZVI或热/AC活化过硫酸盐对水溶液中苯酚的氧化降解

4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i6.6544

{"title":"Oxidative degradation of phenol in aqueous solution by using heat, ZVI, AC, heat/ZVI, or heat/AC activated persulfate","authors":"","doi":"10.56042/ijct.v30i6.6544","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.6544","url":null,"abstract":"Degradation of phenol by heat-activated, ZVI-activated, AC-activated, heat/AC-activated, and heat/ZVI-activated persulfate have been investigated. As a result, the degradation of phenol fitted well with pseudo-first order kinetic model. For the solution with phenol concentration of 100 mg/L, degradation efficiency of nearly 100% and reaction rate constant of 0.0506 min -1 are realized by heat-activated persulfate when reaction temperature is 70℃, concentration of persulfate is 15 g/L, reaction time is 120 min under neutral pH. Besides, the highest degradation efficiency and reaction rate constant of phenol by ZVI-activated are respectively, 92.85% and 0.0198 min -1 when concentration of ZVI is 5 g/L, concentration of persulfate was 15 g/L, and reaction time is 120 min under neutral pH. Furthermore, the highest degradation efficiency and reaction rate constant of phenol by AC-activated persulfate are 99.1% and 0.0373 min -1 , respectively with persulfate concentration of 5 g/L and AC concentration of 5 g/L under neutral pH in 120 min. Moreover, the heat/AC-activated and heat/ZVI-activated persulfate are showing obvious synergistic effect during degradation process of phenol, and the reaction rate constants of heat/AC-activated and heat/ZVI-activated persulfate are respectively, 0.0512 and 0.0561 min -1 . The radical scavenger experiments proved that both SO 4-• and OH• are significant radicals in degradation of phenol by ZVI-activated and AC-activated persulfate, and SO 4-• are predominant radicals in degradation of phenol.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"11 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":"135661248","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}

引用次数: 0

Singular fractional technique for free convective Casson hybrid nanofluid with optically thick medium and shape effects 具有光学厚介质和形状效应的自由对流卡森混合纳米流体的奇异分数技术

IF 0.5 4区工程技术

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI: 10.56042/ijct.v30i4.71682

N. M. Lisha, Vijaya Kumar

{"title":"Singular fractional technique for free convective Casson hybrid nanofluid with optically thick medium and shape effects","authors":"N. M. Lisha, Vijaya Kumar","doi":"10.56042/ijct.v30i4.71682","DOIUrl":"https://doi.org/10.56042/ijct.v30i4.71682","url":null,"abstract":"The transmission of heat in a time-dependent flow of a viscid non-Newtonian hybrid nanofluid comprising magnetite and copper oxide nanoparticles persuaded by an upright plate has been explored in regards to the effect of heat radiation and nanoparticle shape factors. The fluid flow phenomenon of the problem is constructed using the derivative of the Caputo fractional order 0 1  . As a hybrid method, the dimensionless governing fractional partial differential equation was solved analytically using transforms such as Laplace and Fourier sine. With the Mittag-Leffler function, analytical solutions are achieved for fluid flow, energy distribution, rate of heat transmission, and shear stress. Moreover, limit-case solutions for classical PDEs were given for the derived governing flow model. Graphical depictions, tables, and bar graphs are constructed using \"MATLAB\" for a thorough examination of the problem. The graphical findings suggest that the efficiency of hybrid nanofluids is substantially better with the Caputofractional order approach than with ordinary derivatives. Finally, a comparison with existing literature results is performed and determined to be good.","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":"70702092","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}

引用次数: 1