低温水热法制备高催化效率钒酸铋可见光催化剂

人工晶体学报, 2016, 45(1): 85-89.

低温水热法制备高催化效率钒酸铋可见光催化剂

张晓君 ^1, , 焦孟杰 ^2, , 王宁 ^3, , 李玉萍 ^4, , 崔巍 ^5, , 于大禹 ^6,

1.东北电力大学化学工程学院,吉林,132012

2.东北电力大学化学工程学院,吉林,132012

3.东北电力大学化学工程学院,吉林,132012

4.东北电力大学化学工程学院,吉林,132012

5.东北电力大学化学工程学院,吉林,132012

6.东北电力大学化学工程学院,吉林,132012

基金项目: 东北电力大学博士科研启动基金(BXJXM-201410) 国家自然科学基金(31470787)

关键词： BiVO4 , 光催化活性 , 低温水热法

Preparation of Visible Light Photocatalyst BiVO4 with Highly Efficient Catalytic Activity by Low-temperature Hydrothermal Method

Keywords： BiVO4 , Photocatalytic activity , low-temperature hydrothermal method

采用低温水热合成法,通过控制反应体系pH值实现了对晶体形貌的调控,制备了高催化效率的单斜相钒酸铋催化剂.对样品进行了X射线衍射、紫外可见漫反射吸收光谱、扫描电镜和比表面积分析,并以罗丹明B的降解考察了样品的光催化活性.结果表明,反应体系pH值影响钒酸铋的形貌和光催化性能,pH值为7条件下制备得到的BiVO4样品对罗丹明B的光催化降解率最大,光催化反应lh对罗丹明B的降解率为93.56％.H2O2作为电子捕获剂,与电子反应形成羟基自由基,抑制电子和空穴对的复合,H2O2协同催化显著提高了光催化效率.

参考文献

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材料期刊网

低温水热法制备高催化效率钒酸铋可见光催化剂

Preparation of Visible Light Photocatalyst BiVO4 with Highly Efficient Catalytic Activity by Low-temperature Hydrothermal Method

参考文献