摘要
以过氧化氢 /草酸铁络合物作光氧化剂 ,利用太阳光对 10种水溶性染料模拟废水进行了光氧化降解试验研究 ,发现在日光照射下 ,过氧化氢 /草酸铁络合物能使染料溶液迅速降解。以活性艳蓝KN R为代表 ,研究各种因素对光降解的影响。结果表明 ,溶液pH为 2 0～ 4 0时 ,光降解速率快 ;溶液中Fe3 + 与草酸根的摩尔比为 1∶3时 ,光解效果最好 ;提高H2 O2 浓度可以提高光降解速率 ,但H2 O2 的利用率会降低。
The photocatalytic degradation of ten kinds of dyes in aqueous solution under solar irradiation by H 2O 2/ferrioxalate complexes has been studied. The results indicated that the dye wastewater can be rapidly degraded in the process. Various factors affecting photodegradation of reactive brilliant blue dye KN-R are studied. The rate of degradation is high at pH 2.0 ～ 4.0. The photolysis efficiency is highest when the mole ratio of Fe(Ⅲ) to oxalate is 1∶3. The degradation rate of the dye is increased with increasing concentration of H 2O 2, but the utilization efficiency of H 2O 2 is decreased at high concentration of H 2O 2.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2004年第9期32-35,共4页
Techniques and Equipment for Environmental Pollution Control
基金
河南省自然科学基金资助项目 ( 0 2 110 62 5 0 0 )
