王敏,车寅生,董占军,祝雷,牛超,董多,郑浩岩

• 1:沈阳理工大学环境与化学工程学院
• 2:沈阳瑞祥风能设备有限公司
• 3:沈阳环境科学研究院

摘要(Abstract)：

采用柠檬酸络合法分别合成了B掺杂及B-Er共掺杂BiVO4可见光光催化剂,并对材料进行了XRD、SEM、EDS、BET和UV-vis等表征和分析。以光催化降解甲基橙溶液为探针反应,考察掺杂对BiVO4可见光催化活性的影响。结果表明:掺杂没有改变BiVO4晶型,掺杂前后均为单斜型,但B-Er共掺杂BiVO4的晶体粒径较单掺杂B和纯BiVO4减小。由UV-vis知,B-Er共掺杂BiVO4的光吸收强度大于单掺杂和纯BiVO4,光谱吸收红移程度大于单掺杂。B和Er共掺杂纳米BiVO4光催化剂产生协同效应,其光催化性能优于单掺杂B。当固定B为4%掺杂时,Er掺杂量为1%制备的B-Er共掺杂BiVO4,60 min对甲基橙的降解率达96.62%,较单掺杂B(37%)和纯样(20%)有明显提高。

关键词(KeyWords)： 钒酸铋;光催化剂;B-Er共掺杂;甲基橙

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(21207093)

作者(Author): 王敏,车寅生,董占军,祝雷,牛超,董多,郑浩岩

DOI: 10.13289/j.issn.1009-6264.2014.07.002

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