摘要
制备了标题化合物并对其进行了初步表征,在光催化反应仪中,以紫外灯为光源,以Ti3(PW12O40)4/TiO2为光催化剂,探讨了光催化降解苯酚的条件。实验结果表明,对于10 mg/L的苯酚溶液,催化剂投加量为1.5 g/L,在30 W高压汞灯照射下,光催化降解7 h,去除率可达86.5%,TOC去除率达83.2%。最后,讨论了催化剂的循环使用性。
Phosphotungstate Ti3（PW12O40）4/TiO2 was prepared and characterized.Its photocatalytic activity relating to oxidation of phenol in water was studied by using an ultraviolet lamp as the photochemical reaction instrument.The experimental conditions were optimized.The experimental results showed that the maximum rate of photocatalytic degradation was 86.5% and the degradation rate of TOC was 83.2% in the solution containing 10 mg/L of aqueous phenol when the dosage of catalyst was 1.5 g/L and the photocatalytic degradation duration was 7 h.Furthermore,the recyclability of catalyst was also investigated.
出处
《化学试剂》
CAS
CSCD
北大核心
2010年第1期49-51,共3页
Chemical Reagents
基金
贵州省科学技术基金资助项目(黔科合J字[2007]2030号)
贵州省教育厅自然科学研究资助项目(黔教科2008068)
关键词
杂多酸盐
苯酚
光催化
降解
phosphotungstate
phenol
photocatalysis
degradation
