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OALib Journal期刊
ISSN: 2333-9721
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b掺杂tio2光催化剂的制备和光催化性能
Keywords: 无机非金属材料,tio2,b掺杂,光催化,甲基橙
Abstract:
？采用溶胶--凝胶法合成了b掺杂的tio2光催化剂,并用xrd、sem、xps、ft--ir、bet等手段进行了表征。结果表明,掺杂b可抑制tio2晶体的长大,对tio2表面形貌没有显著的影响,b--tio2催化剂的比表面积随着b离子掺杂量的提高而增大;b离子主要进入晶格间隙并与tio2晶体形成固溶体,以b--o--ti结构存在。b掺杂量(质量分数)为3%时,制备出的tio2光催化剂对甲基橙的降解效果最好。n2吸附--脱附结果表明,3%b--tio2的bet比面积为127.84m2/g、平均孔径为10.53nm。
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