Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i5.5215
Preparation of good quality magnesium oxide from seawater is the most challenging job because the vast majority of undesired impurities come from seawater during the precipitation stage. Hence, the double salt route has been developed as a very unique technique to prepare refractory grade magnesium oxide from seawater. Controlled addition of carrier reagent at the precipitating stage precipitates magnesium as double salt. The double salt is transformed to magnesium carbonate (MgCO3), which after calcination forms magnesium oxide (MgO). The product quality has been established by elemental analysis, PXRD, FTIR, TG/DTG, and FESEM. Commercially available MgCO3 and MgO of HiMedia have also been characterized simultaneously for comparison. The prepared magnesium oxide shows very high purity of 99.75%, which is shown from EDS measurement and PXRD and can be suitable as basic refractory material for industrial purposes.
{"title":"Preparation of high pure refractory grade magnesium oxide from east coast sea water","authors":"","doi":"10.56042/ijct.v30i5.5215","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5215","url":null,"abstract":"Preparation of good quality magnesium oxide from seawater is the most challenging job because the vast majority of undesired impurities come from seawater during the precipitation stage. Hence, the double salt route has been developed as a very unique technique to prepare refractory grade magnesium oxide from seawater. Controlled addition of carrier reagent at the precipitating stage precipitates magnesium as double salt. The double salt is transformed to magnesium carbonate (MgCO3), which after calcination forms magnesium oxide (MgO). The product quality has been established by elemental analysis, PXRD, FTIR, TG/DTG, and FESEM. Commercially available MgCO3 and MgO of HiMedia have also been characterized simultaneously for comparison. The prepared magnesium oxide shows very high purity of 99.75%, which is shown from EDS measurement and PXRD and can be suitable as basic refractory material for industrial purposes.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446550","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.v30i1.62337
{"title":"Adsorption of methylene blue dye onto acid-treated tej residue: Kinetic, equilibrium and thermodynamic study","authors":"","doi":"10.56042/ijct.v30i1.62337","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.62337","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701487","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.v30i4.69826
A. S. Reddy, T. Thamizharasan
This study examines the hydrodynamic pulsatile flow of Jeffrey hybrid (Au+Al 2 O 3 /Blood) nanofluid in a vertical channel with entropy production. The literature shows that the investigations are only related to the pulsating flow of nanofluid. Any study related to the pulsating flow of Jeffrey hybrid nanofluid in a vertical channel with Joule heating, thermal radiation, and heat source/sink did not report so far. The novelty of the present work is the investigation of entropy generation on pulsatile flow of Jeffrey hybrid nanofluid with Joule heating, thermal radiation and heat source/sink effects in a vertical channel. The transformation of the governing partial differential equations into a system of ordinary differential equations are made by applying the perturbation method and then numerically solved by fourth-order Runge-Kutta method aided by bvp4c shooting technique built-in MATLAB software. This work is useful for chemical engineering, blood cancer treatment, nano-drug delivery, pharmaceutical process, and biomedical aspects.The effects of various emerging parameters and variables on velocity, temperature, entropy generation, and the Bejan number are displayed through graphs. The consequences of physical parameters on heat transfer rate are prearranged in a table. This analysis demonstrates that the temperature of hybrid nanofluid increases with an increment in radiation parameter, and Eckert number. The entropy generation is an increasing function of Eckert number and radiation parameter whereas it decelerates with a rise in Hartmann number. The heat transfer rate has a higher impact in the case of (Au+Al 2 O 3 /Blood) hybrid nanofluid as compare to mono nanofluid.
{"title":"Pulsatile flow of Jeffrey hybrid nanofluid in a vertical channel with entropy generation","authors":"A. S. Reddy, T. Thamizharasan","doi":"10.56042/ijct.v30i4.69826","DOIUrl":"https://doi.org/10.56042/ijct.v30i4.69826","url":null,"abstract":"This study examines the hydrodynamic pulsatile flow of Jeffrey hybrid (Au+Al 2 O 3 /Blood) nanofluid in a vertical channel with entropy production. The literature shows that the investigations are only related to the pulsating flow of nanofluid. Any study related to the pulsating flow of Jeffrey hybrid nanofluid in a vertical channel with Joule heating, thermal radiation, and heat source/sink did not report so far. The novelty of the present work is the investigation of entropy generation on pulsatile flow of Jeffrey hybrid nanofluid with Joule heating, thermal radiation and heat source/sink effects in a vertical channel. The transformation of the governing partial differential equations into a system of ordinary differential equations are made by applying the perturbation method and then numerically solved by fourth-order Runge-Kutta method aided by bvp4c shooting technique built-in MATLAB software. This work is useful for chemical engineering, blood cancer treatment, nano-drug delivery, pharmaceutical process, and biomedical aspects.The effects of various emerging parameters and variables on velocity, temperature, entropy generation, and the Bejan number are displayed through graphs. The consequences of physical parameters on heat transfer rate are prearranged in a table. This analysis demonstrates that the temperature of hybrid nanofluid increases with an increment in radiation parameter, and Eckert number. The entropy generation is an increasing function of Eckert number and radiation parameter whereas it decelerates with a rise in Hartmann number. The heat transfer rate has a higher impact in the case of (Au+Al 2 O 3 /Blood) hybrid nanofluid as compare to mono nanofluid.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701730","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.v30i2.65430
{"title":"Testing of n-butanol and eucalyptus essential oil as additivities of cottonseed biodiesel-diesel blends","authors":"","doi":"10.56042/ijct.v30i2.65430","DOIUrl":"https://doi.org/10.56042/ijct.v30i2.65430","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701746","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.v30i3.62814
{"title":"Degradation of Orange G by UV/TiO2/IO4 ‾process: Effect of operational parameters and estimation of electrical energy consumption","authors":"","doi":"10.56042/ijct.v30i3.62814","DOIUrl":"https://doi.org/10.56042/ijct.v30i3.62814","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70702011","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.v30i2.68816
{"title":"Extraction, characterization and kinetics of ultrasonic assisted extraction of biooil from Annona squamosa seeds","authors":"","doi":"10.56042/ijct.v30i2.68816","DOIUrl":"https://doi.org/10.56042/ijct.v30i2.68816","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70702060","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.v30i6.6552
The presence of heavy metal ions and organic dyes in the industrial effluents has toxic effects on human and animal health. There is an urgent growing need for the economic and effective treatment of waste water. The carbon dots (CDs) being a fluorescent zero-dimensional material have active surface area capable of binding with toxic heavy metal ions and organic moieties in water. In this study, the CDs have been successfully synthesized from hemicellulose rich Psyllium husk by means of simple green microwave method. The successful formation of CDs and the chemical state of the CDs have been successfully evaluated. The active surface area of CDs arising due to the surface defects contributed by oxygen functionality on the surface has been assessed from FT-Raman and XPS reports. The fluorescence property of the CDs as extrapolated for the sensing of heavy metal ions confirmed the successful sensing of Cr(VI), Fe(II) and Fe(III) ions with a detection (concentration) limit of 0.06 mM, 0.1 M and 0.2 mM, respectively. The photo catalytic performance of the prepared CDs for the discolouration of organic dyes, especially, the cationic dyes is encouraging indicating the successful preparation of negatively charged CDs from the biowaste. Ultimately, the study provides a simple, economical and efficient microwave method for the conversion of biowaste to a smart zero-dimensional carbon material for heavy metal sensing and dye discoloration.
{"title":"Microwave conversion of Plantago Psyllium husk into carbon quantum dots for sensing of heavy metals and removal of organic dyes","authors":"","doi":"10.56042/ijct.v30i6.6552","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.6552","url":null,"abstract":"The presence of heavy metal ions and organic dyes in the industrial effluents has toxic effects on human and animal health. There is an urgent growing need for the economic and effective treatment of waste water. The carbon dots (CDs) being a fluorescent zero-dimensional material have active surface area capable of binding with toxic heavy metal ions and organic moieties in water. In this study, the CDs have been successfully synthesized from hemicellulose rich Psyllium husk by means of simple green microwave method. The successful formation of CDs and the chemical state of the CDs have been successfully evaluated. The active surface area of CDs arising due to the surface defects contributed by oxygen functionality on the surface has been assessed from FT-Raman and XPS reports. The fluorescence property of the CDs as extrapolated for the sensing of heavy metal ions confirmed the successful sensing of Cr(VI), Fe(II) and Fe(III) ions with a detection (concentration) limit of 0.06 mM, 0.1 M and 0.2 mM, respectively. The photo catalytic performance of the prepared CDs for the discolouration of organic dyes, especially, the cationic dyes is encouraging indicating the successful preparation of negatively charged CDs from the biowaste. Ultimately, the study provides a simple, economical and efficient microwave method for the conversion of biowaste to a smart zero-dimensional carbon material for heavy metal sensing and dye discoloration.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135611976","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}
Silver nanoparticles (Ag-NPs) have emerged as potential antifungal agents due to their exceptional properties. These nanoparticles can be synthesised in the laboratory by using green synthetic methods. Hence, in the present study dark brown colour Ag-NPs have been synthesized from 0.01 mM AgNO3 using Azadirachta indica leaf extract as a reducing agent and characterised via different spectroscopic and microscopic techniques. The average particle sizes of the synthesized Ag-NPs are found to be 36 nm and all the particles are mostly spherical in shape. These biosynthesized Ag-NPs effectively have mitigated the mycelial growth of F. oxysporum and F. moniliforme. However, the inhibition has been found better for F. oxysporum as compared to F. moniliforme. At 500 ppm concentration of Ag-NPs, the reductions in mycelial growth have been found to be 100 and 80% for F. oxysporum and F. moniliforme, respectively. So, it can be concluded from the study that Ag-NPs prepared from A. indica leaf extracts could be explored for developing fungicidal formulations.
银纳米颗粒(Ag-NPs)由于其特殊的性能而成为潜在的抗真菌剂。这些纳米颗粒可以通过绿色合成方法在实验室中合成。因此，在本研究中，以0.01 mM AgNO3为原料，以印楝叶提取物为还原剂合成了深棕色Ag-NPs，并通过不同的光谱和显微技术进行了表征。所合成的Ag-NPs的平均粒径为36 nm，大部分为球形。这些生物合成的Ag-NPs有效地抑制了尖孢镰刀菌和念珠菌的菌丝生长。但对尖孢镰刀菌的抑菌效果优于念珠菌。在500 ppm的Ag-NPs浓度下，尖孢镰刀菌和念珠菌的菌丝生长分别减少了100%和80%。因此，该研究表明，从籼稻叶提取物中制备的Ag-NPs可用于开发杀真菌制剂。
{"title":"Biosynthesized silver nanoparticles using green chemistry approach and its evaluation as antifungal agent","authors":"","doi":"10.56042/ijct.v30i6.43","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.43","url":null,"abstract":"Silver nanoparticles (Ag-NPs) have emerged as potential antifungal agents due to their exceptional properties. These nanoparticles can be synthesised in the laboratory by using green synthetic methods. Hence, in the present study dark brown colour Ag-NPs have been synthesized from 0.01 mM AgNO3 using Azadirachta indica leaf extract as a reducing agent and characterised via different spectroscopic and microscopic techniques. The average particle sizes of the synthesized Ag-NPs are found to be 36 nm and all the particles are mostly spherical in shape. These biosynthesized Ag-NPs effectively have mitigated the mycelial growth of F. oxysporum and F. moniliforme. However, the inhibition has been found better for F. oxysporum as compared to F. moniliforme. At 500 ppm concentration of Ag-NPs, the reductions in mycelial growth have been found to be 100 and 80% for F. oxysporum and F. moniliforme, respectively. So, it can be concluded from the study that Ag-NPs prepared from A. indica leaf extracts could be explored for developing fungicidal formulations.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659785","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.v30i1.64953
K. Maryam, Mouji Hamid, Eskandari Hossein
:هلاقم هصلاخ Functionalization ofFullerene by the covalent addition of ۴-benzo-۹-crown-۳ether diazonium salt has beendescribed. The covalent grafting ofcrown etherhas led to a considerable increase in the solubility ofFullerene in both organicand aquatic solvents such as ethanol, dimethylsulfoxide, dimethylformamideand water. The highest solubilitywas attained in Dichloromethane, Acetone andEthanol. The covalently bonded ۴-benzo-۹-crown-۳ ether allowed the hosting ofLi+. The covalentgrafting of crown ether [۴-(benzo-۹-crown-۳)] to Fullerenewasidentified and confirmed by infrared spectroscopy, UV/Vis andthermogravimetric analysismethods.
{"title":"Functionalization of fullerene with 4-benzo-9-crown-3 ether","authors":"K. Maryam, Mouji Hamid, Eskandari Hossein","doi":"10.56042/ijct.v30i1.64953","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.64953","url":null,"abstract":":هلاقم هصلاخ Functionalization ofFullerene by the covalent addition of ۴-benzo-۹-crown-۳ether diazonium salt has beendescribed. The covalent grafting ofcrown etherhas led to a considerable increase in the solubility ofFullerene in both organicand aquatic solvents such as ethanol, dimethylsulfoxide, dimethylformamideand water. The highest solubilitywas attained in Dichloromethane, Acetone andEthanol. The covalently bonded ۴-benzo-۹-crown-۳ ether allowed the hosting ofLi+. The covalentgrafting of crown ether [۴-(benzo-۹-crown-۳)] to Fullerenewasidentified and confirmed by infrared spectroscopy, UV/Vis andthermogravimetric analysismethods.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701131","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.v30i1.68824
{"title":"Adsorption study on the removal of ciprofloxacin in aqueous solution by an acidic ion exchange resin with bifunctional group","authors":"","doi":"10.56042/ijct.v30i1.68824","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.68824","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701219","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：