{"title":"溶胶-凝胶法制备 x La-3%In-TiO 2 光催化材料","authors":"曲家惠, 陈金垒, 李红, 张文杰","doi":"10.11868/j.issn.1001-4381.2015.000948","DOIUrl":null,"url":null,"abstract":"采用溶胶-凝胶法制备xLa-3%(摩尔分数,下同)In-TiO2光催化材料,对其进行XRD,SEM,比表面,孔径分布表征和光催化活性评价。结果表明:所制备的样品为四方晶系锐钛矿结构,掺杂La和In样品的TiO2晶粒尺寸有所减小。In3+,La3+以置换Ti4+的方式进入TiO2晶格中。掺杂La后材料的比表面积增大,平均孔径减小。xLa-3% In-TiO2的孔径主要分布在1.5~10nm范围内。La的掺杂明显提高了材料的光催化活性,甲基橙在0.3% La-3% In-TiO2和3% In-TiO2上的光催化反应速率常数分别为0.061,0.029min-1。甲基橙分子中的显色基团在光催化过程中可以完全降解。","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"46 1","pages":"14-18"},"PeriodicalIF":0.0000,"publicationDate":"2017-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"溶胶-凝胶法制备 x La-3%In-TiO 2 光催化材料\",\"authors\":\"曲家惠, 陈金垒, 李红, 张文杰\",\"doi\":\"10.11868/j.issn.1001-4381.2015.000948\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"采用溶胶-凝胶法制备xLa-3%(摩尔分数,下同)In-TiO2光催化材料,对其进行XRD,SEM,比表面,孔径分布表征和光催化活性评价。结果表明:所制备的样品为四方晶系锐钛矿结构,掺杂La和In样品的TiO2晶粒尺寸有所减小。In3+,La3+以置换Ti4+的方式进入TiO2晶格中。掺杂La后材料的比表面积增大,平均孔径减小。xLa-3% In-TiO2的孔径主要分布在1.5~10nm范围内。La的掺杂明显提高了材料的光催化活性,甲基橙在0.3% La-3% In-TiO2和3% In-TiO2上的光催化反应速率常数分别为0.061,0.029min-1。甲基橙分子中的显色基团在光催化过程中可以完全降解。\",\"PeriodicalId\":16195,\"journal\":{\"name\":\"Journal of Materials Engineering\",\"volume\":\"46 1\",\"pages\":\"14-18\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-08-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Engineering\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.11868/j.issn.1001-4381.2015.000948\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.11868/j.issn.1001-4381.2015.000948","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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