GO/（CeO2-TiO2）改性复合膜紫外光催化去除氨氮、DOC

被引：7

作者：

张志伟 ^{[1
]}

徐斌 ^{[1
]}

张毅敏 ^{[1
,2
]}

杨飞 ^{[1
]}

张书陵 ^{[2
]}

机构：

[1] 生态环境部南京环境科学研究所

[2] 常州大学环境与安全工程学院

来源：

中国环境科学 | 2020年 / 40卷 / 03期

关键词：

氧化石墨烯; 复合膜; 光催化;

D O I：

10.19674/j.cnki.issn1000-6923.2020.0074

中图分类号：

X52 [水体污染及其防治];

学科分类号：

0815 ;

摘要：

以二氧化铈-二氧化钛（CeO2-TiO2）、氧化石墨烯-二氧化铈（GO-CeO2）、氧化石墨烯-二氧化钛（GO-TiO2）和氧化石墨烯/二氧化钛-二氧化铈[GO/（CeO2-TiO2）]为改性物质,借助真空过滤法对聚偏氟乙烯（PVDF）微滤膜进行改性制备复合膜,利用X射线粉末衍射仪、紫外可见漫反射、扫描电子显微镜、傅里叶红外变换光谱等手段探究了复合膜的结构和光吸收能力.选择常州太湖支浜水样作为原水,研究了复合膜在黑暗及紫外光条件下对氨氮及DOC的去除效果.结果表明,黑暗条件下,（GO-CeO2）复合膜氨氮去除率最高可达到28.21%,GO/（CeO2-TiO2）复合膜DOC去除率最高达29.58%;紫外光条件下,GO、CeO2、TiO2间的协同作用使得GO/（CeO2-TiO2）复合膜氨氮（65.4%）及DOC（54.7%）去除效果最佳.

引用

页码：1116 / 1122

页数：7

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