| MWNTs/TiO2/聚酯功能复合膜吸附及其净化性能 |
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| 引用本文： | 柳丽芬,郑国华,杨凤林.MWNTs/TiO2/聚酯功能复合膜吸附及其净化性能[J].中国环境科学,2009,29(2):213-218. |
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| 作者姓名： | 柳丽芬 郑国华 杨凤林 |
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| 作者单位： | 大连理工大学环境生命学院,教育部工业生态与环境工程重点实验室,辽宁,大连,116023 |
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| 基金项目： | 国家自然科学基金，辽宁省自然科学基金 |
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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(l=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.
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| 关 键 词： | 复合膜 双酚A(BPA) 吸附性能 |
| 收稿时间： | 2008-07-25; |
MWNTs/TiO2 composite functional membranes and their adsorption properties |
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| LIU Li-fen,ZHENG Guo-hua,YANG Feng-lin.MWNTs/TiO2 composite functional membranes and their adsorption properties[J].China Environmental Science,2009,29(2):213-218. |
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| Authors: | LIU Li-fen ZHENG Guo-hua YANG Feng-lin |
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| Abstract: | 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. |
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| Keywords: | composite functional membranes bisphenol A (BPA) adsorption property |
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