文献类型：期刊文献

中文题名：含铁柱撑膨润土光催化降解Orange Ⅱ

英文题名：Photocatalytic degradation of Orange Ⅱ by Fe-containing pillared bentonites

作者：李益民[1];温丽华[2];刘颖[2];李海洋[2]

机构：[1]绍兴文理学院化学系;[2]中国科学院安徽光学精密机械研究所环境光谱学实验室

年份：2005

卷号：36

期号：6

起止页码：874

中文期刊名：功能材料

外文期刊名：Journal of Functional Materials

收录：CSTPCD、、北大核心2004、Scopus、CSCD2011_2012、北大核心、CSCD

基金：国家自然科学基金资助项目(20073042);浙江省自然科学基金资助项目(202018)

语种：中文

中文关键词：光催化降解;铝铁柱撑膨润土;光助Fenton;OrangeⅡ

外文关键词：photocatalytic degradation; Al-Fe pillared bentonite; photoassisted Fenton; Orange Ⅱ

中文摘要：制备了两种含铁柱撑膨润土(FeAlBent和FeBent),用XRD、BET、TEM对它们进行了性能表征。以偶氮染料OrangeⅡ为目标降解物,考察了它们作为复相Fenton催化剂的光催化性能,以及溶液的pH、H2O2浓度、催化剂用量对OrangeⅡ降解的影响,并与相应的均相Fenton反应进行了比较。结果表明FeAlBent和FeBent具有很高的比表面积(分别为194.2和114.6m2/g),用FeAlBent或FeBent作光催化剂的复相光助Fenton反应的催化性能明显优于相应的均相光助Fenton反应。此外复合铁铝柱撑膨润土(FeAlBent)比单一的铁柱撑膨润土(FeBent)在反应过程中具有更低的铁离子溶出量,它们还具有分离简单、重复使用性好等特点。

外文摘要：Both Fe pillared bentonite (Fe-Bent) and Al-Fe pillared bentonite (Fe-Al-Bent) were prepared, and used as catalysts for the degradation of azo dye Orange Ⅱ under UV irradiation. The catalysts were characterized by XRD, BET and TEM. The effects of pH valve and the H_2O_2 concentration of the photocalytic reaction solution, as well as the amount of catalyst on the photocatalytic degradation efficiency were investigated. It was found the Fe-Al-Bent and the Fe-ent have high BET surface area (194.2m2/g and 114.6m2/g, respectively). Both the heterogeneous photo-Fenton processes employing the Fe-Al-Bent or the Fe-Bent as catalyst exhibit higher photo-catalytic activity compared to their corresponding homogeneous photo-Fenton process. The Fe ions amount in solution leaching from the Fe-Al-Bent was lower than that leaching from the Fe-Bent during reaction process. In addition, the Fe-Al-Bent can be easily recovered, regenerated and reused.