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MWNTs/TiO_2/聚酯功能复合膜吸附及其净化性能 被引量：6

MWNTs/TiO_2 composite functional membranes and their adsorption properties
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摘要 以聚酯工业滤布为基膜,采用溶胶凝胶和浸渍方法制备了具有吸附-光催化功能的多壁碳纳米管(MWNTs)/TiO2涂层的复合膜,该复合膜对模拟水样低浓度(10mg/L)的双酚A具有较高吸附性能.随着复合膜上负载二氧化钛中的MWNTs的比例(17.6%,29.9%,和46.0%)增加,吸附去除率显著提高;吸附饱和的复合膜上的污染物双酚A可通过20W紫外灯(λ=254nm)照射Fenton氧化反应去除.吸附实验和HPLC分析表明,除了超声处理会引起浸渍负载的材料脱落外,复合膜吸附性能恢复较好. Series of composite functional membranes, containing adsorptive multi-walled carbon nanotubes（MWNTs）, and photocatalytic TiO2, based on polyethylene （PET） filter cloth, were prepared by using a sol-gel and dip-coating method. The membrane could remove low concentration （10mg/L） BPA （bisphenol A） efficiently from simulate polluted water sample. With the proportional increase of MWNTs to MWNTs＋TiO2 （17.6%, 29.9%, 46.0%）, removal rate of BPA increased accordingly. The adsorbed BPA on the saturated membrane could be removed by 2h （20W 254nm） UV-Fenton oxidation reaction. Repeated adsorption and HPLC analysis proved that the adsorption capacity of the studied membrane could be regenerated successfully, despite the detachment of MWNTs/TiO2 occurred when ultrasonically treated.
作者 柳丽芬 郑国华 杨凤林
机构地区 大连理工大学环境生命学院
出处 《中国环境科学》 EI CAS CSCD 北大核心 2009年第2期213-218,共6页 China Environmental Science
基金 国家自然科学基金资助项目(20477006) 辽宁省自然科学基金(20052182)
关键词 复合膜 双酚A(BPA) 吸附性能 composite functional membranes bisphenol A （BPA） adsorption property
分类号 X703.3 [环境科学与工程—环境工程] TQ028.8 [化学工程]
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参考文献16

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二级参考文献24

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共引文献83

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二级引证文献30

中国环境科学
2009年 第2期

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