水溶液中残留四环素的光催化降解的实验研究  

The Testing Researches on Photocatlytic Decomposition of Tetracycline Aqueous Solution with UV-light in Powered Semiconductor Photocatalyst

作　　者：陈非力[1] 王承交[2] 

机构地区：[1]中国科学院广州能源研究所,广州510070 [2]广西大学化工系,南宁530004

出　　处：《污染防治技术》1995年第4期223-226,232,共5页Pollution Control Technology

摘　　要：由于抗菌素具有抑制微生物生存的作用,通常处理工业废水最有效的“生物氧化降解法”却无法用来有效处理四环素废液。简述了半导体光催化剂在紫外光照射下降解难溶或难分解有机物基本原理,以半导体TiO_2和ZnO粉粒为光催化剂进行催化降解四环素废液的实验,其结果表明,半导体TiO_2光催化降解效果比较好;另外,H_2O_2可以作为TiO_2光催化剂的助氧化剂来加快四环素的降解。该实验结果有助于光催化剂的深入研究和太阳能光催化反应装置的设计,为今后在中小型药厂和印染厂的废水处理奠定基础。It introduces briefly the mechanism on photocatalytic decomposition of nondegradable and refractory organic pollutants and reports the testing researches on using powered semiconductors TiO2 and ZnO as photocatalysts to decompose the tetracycline aqueous solution with UV- light. The results show that the effet of photocatalytic decomposition of tetracycline with TiO2 is better than that with ZnO ; in addition, the results also indicate that hydrogen peroide(H2O2)can accelerate decomposition of tetracycline as the assisted oxidation reagent to match the photocatalyst TiOt, In a word, these test are useful for profound research and design of photocatalysts and photocatalytic reactor with solar energy.

关 键 词：水溶液 光催化 四环素 废水处理 降解 

分 类 号：X789.03[环境科学与工程—环境工程]