期刊论文

中文

湖南科技大学学报(自然科学版)

1672-9102

2009

24

4

118-121

10.3969/j.issn.1672-9102.2009.04.026

湖南省自然科学基金项目资助（08JJ3021）；

本校为第一机构

研究了竹炭/TiO2光催化剂在紫外光照射下去除Cr（VI）的特性,探索了催化剂用量、Cr（VI）的初始质量浓度、光催化时间、催化剂焙烧温度及溶液酸度对Cr（VI）去除率的影响,确定了竹炭/TiO2光催化剂处理含铬废水的最佳条件.结果表明:反应条件在pH值为0.5,光催化反应时间大于30min,催化剂的加入量为3g/800ml时效果最好,建议使用在450℃下进行焙烧2h的光催化剂,可以采用适当延长反应时间的方法来提高Cr（VI）离子的降解率.图6,参9.

It is studied that the characteristics of the removal of Cr（Ⅵ） over bamboo charcoal/TiO2 photocatalyst under UV irradiation and the effects of amount of catalyst, Cr （Ⅵ） initial concentration, photocatalytic time, calcination temperature and solution＇s pH on removal rate. The best conditions for treatment of Cr（Ⅵ）-containing wastewater over the photoeatalyst is also defined. The results show that： the effect is the optimum when the pH is 0.5, the photocatalytic reaction time is more than 30 min, the usage amount of catalyst is 3 g/80...