%0 Journal Article
%T Photocatalytic degradation of chloral by fixed photocatalyst TiO2 thin film<br>固定化催化剂TiO2膜光催化降解三氯乙醛的研究
%A Li Shaoxiu
%A Peng Bo
%A <br>李绍秀
%A 彭勃
%J 环境工程学报
%D 2007
%I 
%X The efficiency of photocatalytic degradation of chloral in water by fixed photocatalyst TiO2 thin film loaded on glass was studied. The mechanism of photocatalytic degradation of chloral by fixed photocatalyst TiO2 thin film was discussed. The influence of solution pH value and initial chloral concentration on photocatalytic degradation of chloral by TiO2 thin film was investigated, the dynamics of photocatalytic degradation of chloral was also studied. The result showed that the efficiency of photocatalytic degradation of chloral in water by fixed photocatalyst TiO2 thin film was good. When initial chloral concentration was 2.25 mg/L, the degradation rate of chloral was up to 100% after three hours ultraviolet irradiation. The chloral degradation rate decreased with the increase of initial chloral concentration. The degradation efficiency was highest at pH 6.5 of solution. The reaction of photocatalytic degradation of chloral by fixed photocatalyst TiO2 thin film obeyed one stage reaction dynamics, the reaction rate constant also decreased with the increase of initial chloral concentration.
%K photocatalytic degradation
%K fixed TiO2 thin film
%K chloral<br>光催化氧化
%K 固定化TiO2膜
%K 三氯乙醛
%K 固定化催化剂
%K 光催化降解率
%K 三氯乙醛
%K 研究
%K thin
%K film
%K photocatalyst
%K fixed
%K degradation
%K 速率常数
%K 一级反应动力学
%K 效率最高
%K 光照时间
%K 结果
%K 影响
%K 初始浓度
%K 溶液
%K 考察
%K 机理
%K 效果
%K 降解水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=2F258F9DEC1F3207&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=9CF7A0430CBB2DFD&sid=AA76E167F386B6B3&eid=80A07035DF96B0C4&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=11