摘要
研究了水体表面微层中酞酸酯化合物(DBP,DEHP)光降解的动力学,指出光催化降解符合一级动力学过程.实验证明:催化剂TiO_2为2g·1^(-1),pH为6,并有H_2O_2存在时,是DBP,DEHP光降解的最佳条件;溶解氧增加有利于光降解.实际表面微层水样的光催化降解速率比模拟水样快.
Photodegradation dynamics of phthalic ester in water surface microlayer was studied. The result suggests that photodegradation a first-order kinetics. Optimum conditions of photodegradation are: TiO2 is 2g·l-1; pH 6.0 and H2O2 existed. The increasing dissolved oxygen benefits photodegradation . The rate of photodegradation in actual water surface microlayer is faster than that in the simulated system.
出处
《环境化学》
CAS
CSCD
北大核心
1999年第2期109-114,共6页
Environmental Chemistry
基金
国家自然科学基金资助项目No:29577280
关键词
表面微层
酞酸酯
光降解
动力学
废水处理
surface microlayer, phthalic ester, photodegradation, dynamics.
