期刊论文

Study on Phenolic Wastewater Catalytic Treatment by Inverse Opal BiVO_4/WO_3

中文

水处理技术

1000-3770

2019

45

3

97-101

10.16796/j.cnki.1000-3770.2019.03.020

国家自然科学基金(21707169) 湖南省重点研发计划项目(2016SK2030) 广东省自然科学基金(2017A030313319) 广东省教育厅特色创新项目(2014KTSCX133) 广东省高等学校优秀青年教师培养计划(3211700203).

本校为第一机构

采用溶剂蒸发-提拉法以苯乙烯为模板制备了反蛋白石结构BiVO_4/WO_3复合光催化材料。对其结构进行了表征,考察了其在可见光照射条件下对苯酚的光催化性能。结果表明,反蛋白石结构BiVO_4/WO_3具有较好的光催化活性,能有效去除水体中的苯酚。在苯酚质量浓度80 mg/L范围内,催化剂对苯酚含量不敏感,90 min后去除率基本达到99%,去除效率远高于普通WO_3。在降解过程中加入一定浓度的H_2O_2对光催化有促进作用,过量则抑制降解,H_2O_2的适宜浓度为5 mmol/L,此时苯酚(质量浓度20 mg/L)去除率为99.7%。降解体系中含草酸对光催化反应有抑制作用,且草酸含量越高抑制越严重。催化剂在重复使用5次后苯酚的去除...

The composite photocatalytic material of inverse opal BiVO4/WO3 was successfully prepared by solvent evaporation and czochralski method,and styrene as the template. The microstructures of the BiVO4/WO3 photocatalyst were characterized, and the photocatalytic performance for phenol with visible light irradiation was investigated. Results showed that the inverse opal BiVO4/WO3 could effectively remove phenol from water. Within the range of 80 mg/L mass concentration of phenol, the remove rate of phenol was not quite different, the removal rate of phenol reached 99% after 90 min degradation,which...