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A Review On – Material Selection For Corrosion Studies 腐蚀研究材料选择综述
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2024-01-01 DOI: 10.48165/bpas.2023.42c.2.7
R. D. Pruthviraj
{"title":"A Review On – Material Selection For Corrosion Studies","authors":"R. D. Pruthviraj","doi":"10.48165/bpas.2023.42c.2.7","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.2.7","url":null,"abstract":"Corrosion is the largest single cause of plant and equipment breakdown in the process industries. For  most applications it is possible to select materials of construction that are completely resistant to attack by  the process fluids, but the cost of such an approach is often prohibitive. In practice it is usual to select  materials that corrode slowly at a known rate and to make an allowance for this in specifying the material  thickness. However, a significant proportion of corrosion failures occur due to some form of localised  corrosion, which results in failure in a much shorter time than would be expected from uniform wastage.  Additionally, it is important to take into account that external atmospheric corrosion leads to many  instances of loss of containment and tends to be a greater problem than internal corrosion. All these  aspects of corrosive behaviour need to be addressed both at plant design time and during the life of the  plant. ","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"121 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139639340","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
Two-Dimensional Halide Perovskites for Heavy Metal Ions Sensing 用于重金属离子传感的二维卤化物钙钛矿
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.8
Navneet Kumar, Dhwani Gaur, K. Chauhan, Mehruba Khan, Sonu, Akanksha Sandhu
{"title":"Two-Dimensional Halide Perovskites for Heavy Metal Ions Sensing","authors":"Navneet Kumar, Dhwani Gaur, K. Chauhan, Mehruba Khan, Sonu, Akanksha Sandhu","doi":"10.48165/bpas.2023.42c.1.8","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.8","url":null,"abstract":"This report focuses on the exceptional trait of using perovskite halide sensing method in relation to  sensing of heavy metal ions. Metal halide perovskite (MHP), which exhibits excellent sensing properties,  is now considered as an efficient sensing material. We first describe the sensing of metal halides  perovskites in metal halide. Next, performance improvement strategies focused on tuning of sensing  properties for sensing metal ions. A new two-dimensional (2D) lead perovskite, B2An-1PbnX3n+1, exhibits  impressive water resistance when in contact with water while retaining the real crystal arrangement and  ocular characteristics. B2An-1PbnX3n+1. B2An-1PbnX3n+1 composites were synthesized and investigated for  sensing. The results show an impressive increase in concentration in the composite and similar  improvements in metal halide. Recent results in providing new watertight perovskite leads to secure,  effective, and practical utilization of metal halide perovskite in sensing. In this project, we have  synthesized compound B2An-1PbnX3n+1 (S1) and prepared perovskite films using a drop casting method.  Then, we have performed sensing studies using heavy metal ions such as Cd2+, Ba2+ & Zn2+ using UV Visible (UV-Vis) spectroscopic techniques. From UV-Vis experiments, we have found that our  synthesized receptor has sensed Cd2+ & Zn2+ but the receptor could not sense Ba2+. We have also  performed thin film colorimetric sensing experiment. We observed some amount of color changes for  Cd2+ & Zn2+ ions. Thus, our synthesized receptor could be promising futuristic material for heavy metal  ion sensing. ","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114650707","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
Excess Molar Volume for Cyclohexanone (C6H10O) with Chloroalkanes at 303.15K 303.15K时环己酮(C6H10O)与氯烷的过量摩尔体积
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.2
A. Tripathi, Souvik Sur
{"title":"Excess Molar Volume for Cyclohexanone (C6H10O) with Chloroalkanes at 303.15K","authors":"A. Tripathi, Souvik Sur","doi":"10.48165/bpas.2023.42c.1.2","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.2","url":null,"abstract":"Measurements on excess molar volume by using dilatometer have been made for mixtures of  Cyclohexanone with 1-chlorobutane, acetylene tetrachloride, Chloroform and 1,3 dichloropropane at  303.15K and under atmospheric pressure in the liquid state. The obtained data have been fitted with the  help of polynomial Redlich-Kister equation and discussed with the point view of molecular interactions  in the liquid state. The values of VE have been found to be negative in sign for the mixtures of  Cyclohexanone with 1-chlorobutane, acetylene tetrachloride, and chloroform whereas it is positive in sign  with 1,3-dichloropropane. The results obtained may be attributed to donor-acceptor interaction for all  components in the liquid state.","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116807100","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
Green and Benign Strategies for Synthesis of Biologically Active Compounds using Lipase as Biocatalyst 以脂肪酶为生物催化剂合成生物活性化合物的绿色良性策略
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.6
Navneet Kumar, Anjali Chauhan, Anuj, Prachi
{"title":"Green and Benign Strategies for Synthesis of Biologically Active Compounds using Lipase as Biocatalyst","authors":"Navneet Kumar, Anjali Chauhan, Anuj, Prachi","doi":"10.48165/bpas.2023.42c.1.6","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.6","url":null,"abstract":"An efficient, feasible, mild, affordable, and environmentally friendly method has been developed for the  synthesis of biologically active compound 3-methylene-indoline-2-one from Isatin and active methylene  compounds using Lipase as a Green and Biocatalyst. Biological Processes are very important to  optimization to increase and improve the efficiency of cost. In this project, Malononitrile, or Dimedone  reacts with Isatin in presence of lipase. The essential features of this approach are metal-free reaction, high yield, nontoxic, and less hazardous. These reactions surpass metal-catalyzed processes because these  reactions have violent reaction conditions, toxic, less yields, complex workups, and environmentally  hazardous ingredients. This approach replaces hazardous chemicals with benign material during their  design, manufacture, use and disposal. Designing of product is cost-effective and environmentally benign  chemically products. It is completely followed to Green Approach. The entire given biologically active  compound have shown biological activities such as Antiviral, Anti-HIV, Antibacterial, and  Anticonvulsants. ","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124331357","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
Excess Volume for Acetylene Tetrachloride with Pyridine, Methoxybenzene, 2-Butanone and 1,4-Dioxane at 298.15K 四氯化乙炔与吡啶、甲氧基苯、2-丁酮和1,4-二恶烷在298.15K下的过量体积
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.4
A. Tripathi, Nikhil Rajput, Prakhar Kumar Dev, Arshan Ahmad
{"title":"Excess Volume for Acetylene Tetrachloride with Pyridine, Methoxybenzene, 2-Butanone and 1,4-Dioxane at 298.15K","authors":"A. Tripathi, Nikhil Rajput, Prakhar Kumar Dev, Arshan Ahmad","doi":"10.48165/bpas.2023.42c.1.4","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.4","url":null,"abstract":"A dilatometric measurement have been carried out for getting excess volumes, VE, in the liquid state for  mixtures of acetylene tetrachloride (CHCl2CHCl2), with pyridine (C5H5N), methoxybenzene (C6H5O  CH3), 2-butanone (CH3COC2H5) and 1,4-dioxane (1,4-C4H8O2) at 298.15K and under atmospheric  pressure. The values of excess molar volume, VE, are negative in sign for all the mixtures over whole  composition range. Obtained data have been fitted by Redlich-Kister type polynomial smoothing  equation. The results are discussed in the light of molecular interactions occurred between components in  the liquid state. ","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125856814","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
Sunlight Induced Photocatalytic Degradation of Methylene Blue Dye by SnS2 Nanoplates Under Natural Sunlight Exposure 自然光照下SnS2纳米板光催化降解亚甲基蓝染料的研究
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.3
G. Kumar, Alok Kumar Gehlot
{"title":"Sunlight Induced Photocatalytic Degradation of Methylene Blue Dye by SnS2 Nanoplates Under Natural Sunlight Exposure","authors":"G. Kumar, Alok Kumar Gehlot","doi":"10.48165/bpas.2023.42c.1.3","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.3","url":null,"abstract":"Removal of dyes from water bodies is a significant concern throughout the world. In this study, SnS2 nanoplates were synthesized by a hydrothermal synthetic route at 160°C, and it is effectively  characterized by various techniques. The XRD peaks confirmed the hexagonal planes of SnS2. The  nanoplates-like morphology was revealed by FESEM and HRTEM. The optical band gap was  investigated by UV-vis DRS and showed a reflection edge with corresponding energy at 2.2 eV. The  photocatalytic activity of the SnS2 nanoplates is tested against the degradation of methylene blue under  natural sunlight irradiation. About 95% degradation of methylene blue is observed in 120 min with the  photocatalytic degradation rate of 0.021min-1. Results confirmed that the SnS2nanoplatescould facilitate 95  % degradation of methylene dye and followed the first-order kinetic model.","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122957233","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
Photocatalytic Degradation of Rhodamine B Dye by Bi2MoO6 Microspheres under Natural Sunlight Irradation 自然光照下Bi2MoO6微球光催化降解罗丹明B染料
Bulletin of Pure and Applied Sciences-Chemistry Pub Date : 2023-06-20 DOI: 10.48165/bpas.2023.42c.1.1
G. Kumar, Alok Kumar Gehlot
{"title":"Photocatalytic Degradation of Rhodamine B Dye by Bi2MoO6 Microspheres under Natural Sunlight Irradation","authors":"G. Kumar, Alok Kumar Gehlot","doi":"10.48165/bpas.2023.42c.1.1","DOIUrl":"https://doi.org/10.48165/bpas.2023.42c.1.1","url":null,"abstract":"Removal of dyes from water bodies is a significant concern throughout the world. In this study, Bi2MoO6 microspheres were synthesized by a hydrothermal synthetic route at 180°C, and it is effectively  characterized by various techniques. The XRD peaks confirmed the orthorhombic planes of Bi2MoO6. The  microsphere-like morphology was revealed by FESEM and HRTEM. The optical band gap was  investigated by UV-vis DRS and showed a reflection edge with corresponding energy at 2.68 eV. The  photocatalytic activity of the Bi2MoO6 microsphere is tested against the degradation of rhodamine B  under natural sunlight irradiation. About 90% degradation of rhodamine B is observed in 90 min with the  photocatalytic degradation rate of 0.038min-1. Results confirmed that the Bi2MoO6microspherecould  facilitate 90% degradation of RhB dye and followed the first-order kinetic model. ","PeriodicalId":129742,"journal":{"name":"Bulletin of Pure and Applied Sciences-Chemistry","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114404836","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
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