| 氧化石墨烯改性PVDF超滤膜制备及分离性能 |
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| 引用本文： | 薛娟琴,王森,韩小龙,王玉琪,李继定.氧化石墨烯改性PVDF超滤膜制备及分离性能[J].化工学报,2017,68(9):3466-3473. |
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| 作者姓名： | 薛娟琴 王森 韩小龙 王玉琪 李继定 |
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| 作者单位： | 1.西安建筑科技大学冶金工程学院, 陕西 西安 710055;2.西北大学化工学院, 陕西 西安 710069;3.化学工程联合国家重点实验室, 清华大学化学工程系, 北京 100084 |
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| 基金项目： | 国家自然科学基金项目（51478379，51278407）；化学工程联合重点实验室开放基金项目（SKL-ChE-16A04）；陕西省教育厅专项科研计划项目（16JK1755）。 |
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| 摘 要： | 用N-（三甲氧基硅丙基）乙二胺三乙酸钠（EDTS）对氧化石墨烯进行修饰，制备出亲水的EDTS-GO纳米复合物。然后通过共混的方式将EDTS-GO添加到PVDF中，制备出EDTS-GO改性PVDF超滤膜。接触角分析和红外光谱结果表明，在相转化过程中EDTS-GO转移至膜表面，PVDF膜表面的亲水性增强。系统考察了不同EDTS-GO添加量对膜性能的影响。膜性能测试表明，随着EDTS-GO添加量的增加，PVDF膜的纯水通量先增大然后降低，当添加量为0.5%时，纯水通量达到最大值，711.2 L·（m2·h）-1。此外，抗污染实验表明，EDTS-GO改性的PVDF超滤膜比未改性的PVDF超滤膜具有更强的抗污染性能。
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| 关 键 词： | EDTS-GO纳米复合物 PVDF超滤膜 抗污染性能 |
| 收稿时间： | 2017-03-07 |
| 修稿时间： | 2017-05-22 |
Prepartion and separation performance of GO modified PVDF ultrafiltration membrane |
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| XUE Juanqin,WANG Sen,HAN Xiaolong,WANG Yuqi,LI Jiding.Prepartion and separation performance of GO modified PVDF ultrafiltration membrane[J].Journal of Chemical Industry and Engineering(China),2017,68(9):3466-3473. |
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| Authors: | XUE Juanqin WANG Sen HAN Xiaolong WANG Yuqi LI Jiding |
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| Affiliation: | 1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China;2.School of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, China;3.The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | EDTS-GO nanocomposites were prepared by decorating graphene oxide (GO) with N-(trimethoxysilylpropyl) ethylenediaminetriacetic acid sodium (EDTS). Then EDTS-GO modified PVDF ultrafiltration membrane was prepared by introducing EDTS-GO through blending method. Contact angle results indicated that the hydrophilicity of PVDF membrane was improved owing to introducing EDTS-GO. This was due to EDTS-GO transferring to membrane surface during phase inversion, which was confirmed by FTIR. The effect of the EDTS-GO addition content on membrane property was investigated systematically. With an increase in EDTS-GO content, the water flux of EDTS-GO modified PVDF membrane initially increased and then decreased and reached to maximum of 711.2 L·(m2·h)-1 in the 0.5% content. Furthermore, antifouling experiment demonstrated EDTS-GO modified PVDF ultrafiltration membrane possessed the stronger fouling-resistant performance than pristine PVDF ultrafiltration membrane. |
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| Keywords: | EDTS-GO nanocomposites PVDF UF membrane antifouling performance |
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