Li Li, Zheng Ma, Feifei Bi, Hong Li, Wenjie Zhang, Hongbo He
{"title":"微米级石英球负载Bi4Ti3O12光催化剂的溶胶-凝胶制备及性能研究","authors":"Li Li, Zheng Ma, Feifei Bi, Hong Li, Wenjie Zhang, Hongbo He","doi":"10.1515/jaots-2016-0215","DOIUrl":null,"url":null,"abstract":"Abstract Composite Bi4Ti3O12/SiO2 photocatalysts were prepared through sol-gel synthesizing of Bi4Ti3O12 on quartz spheres. The Bi4Ti3O12 supported on the micrometer-sized quartz spheres is in a perovskite structure with shrinking crystallite size. SEM and EDX images demonstrate the well dispersion of Bi4Ti3O12 on the quartz spheres. Both Bi4Ti3O12 and χBi4Ti3O12/SiO2 have small surface area due to the very limited porous structure. Chemical environments of Bi4Ti3O12 do not noticeably change after loading on SiO2. Photocatalytic activities of most supported χBi4Ti3O12/SiO2 are improved with the maximum activity on 50%Bi4Ti3O12/SiO2. Total decoloration of Reactive Brilliant Red-X3B is achieved on 50%Bi4Ti3O12/SiO2 after 90 min under UV light irradiation.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"38 1","pages":"310 - 316"},"PeriodicalIF":0.0000,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Sol-gel Preparation and Properties of Bi4Ti3O12 Photocatalyst Supported on Micrometer-sized Quartz Spheres\",\"authors\":\"Li Li, Zheng Ma, Feifei Bi, Hong Li, Wenjie Zhang, Hongbo He\",\"doi\":\"10.1515/jaots-2016-0215\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Composite Bi4Ti3O12/SiO2 photocatalysts were prepared through sol-gel synthesizing of Bi4Ti3O12 on quartz spheres. The Bi4Ti3O12 supported on the micrometer-sized quartz spheres is in a perovskite structure with shrinking crystallite size. SEM and EDX images demonstrate the well dispersion of Bi4Ti3O12 on the quartz spheres. Both Bi4Ti3O12 and χBi4Ti3O12/SiO2 have small surface area due to the very limited porous structure. Chemical environments of Bi4Ti3O12 do not noticeably change after loading on SiO2. Photocatalytic activities of most supported χBi4Ti3O12/SiO2 are improved with the maximum activity on 50%Bi4Ti3O12/SiO2. Total decoloration of Reactive Brilliant Red-X3B is achieved on 50%Bi4Ti3O12/SiO2 after 90 min under UV light irradiation.\",\"PeriodicalId\":14870,\"journal\":{\"name\":\"Journal of Advanced Oxidation Technologies\",\"volume\":\"38 1\",\"pages\":\"310 - 316\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Advanced Oxidation Technologies\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/jaots-2016-0215\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Advanced Oxidation Technologies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/jaots-2016-0215","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q","JCRName":"Chemistry","Score":null,"Total":0}
Sol-gel Preparation and Properties of Bi4Ti3O12 Photocatalyst Supported on Micrometer-sized Quartz Spheres
Abstract Composite Bi4Ti3O12/SiO2 photocatalysts were prepared through sol-gel synthesizing of Bi4Ti3O12 on quartz spheres. The Bi4Ti3O12 supported on the micrometer-sized quartz spheres is in a perovskite structure with shrinking crystallite size. SEM and EDX images demonstrate the well dispersion of Bi4Ti3O12 on the quartz spheres. Both Bi4Ti3O12 and χBi4Ti3O12/SiO2 have small surface area due to the very limited porous structure. Chemical environments of Bi4Ti3O12 do not noticeably change after loading on SiO2. Photocatalytic activities of most supported χBi4Ti3O12/SiO2 are improved with the maximum activity on 50%Bi4Ti3O12/SiO2. Total decoloration of Reactive Brilliant Red-X3B is achieved on 50%Bi4Ti3O12/SiO2 after 90 min under UV light irradiation.
期刊介绍：
The Journal of advanced oxidation technologies (AOTs) has been providing an international forum that accepts papers describing basic research and practical applications of these technologies. The Journal has been publishing articles in the form of critical reviews and research papers focused on the science and engineering of AOTs for water, air and soil treatment. Due to the enormous progress in the applications of various chemical and bio-oxidation and reduction processes, the scope of the Journal is now expanded to include submission in these areas so that high quality submission from industry would also be considered for publication. Specifically, the Journal is soliciting submission in the following areas (alphabetical order): -Advanced Oxidation Nanotechnologies -Bio-Oxidation and Reduction Processes -Catalytic Oxidation -Chemical Oxidation and Reduction Processes -Electrochemical Oxidation -Electrohydraulic Discharge, Cavitation & Sonolysis -Electron Beam & Gamma Irradiation -New Photocatalytic Materials and processes -Non-Thermal Plasma -Ozone-based AOTs -Photochemical Degradation Processes -Sub- and Supercritical Water Oxidation -TiO2 Photocatalytic Redox Processes -UV- and Solar Light-based AOTs -Water-Energy (and Food) Nexus of AOTs
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