Prepartion and separation performance of GO modified PVDF ultrafiltration membrane

XUE Juanqin; WANG Sen; HAN Xiaolong; WANG Yuqi; LI Jiding

doi:10.11949/j.issn.0438-1157.20170217

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Prepartion and separation performance of GO modified PVDF ultrafiltration membrane

更新时间：2025-12-10

- Prepartion and separation performance of GO modified PVDF ultrafiltration membrane
- CIESC Journal Issue 9, Pages: 3466-3473(2017)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170217
  CLC： Q028.8
- Online First：05 September 2017，
  
  Published：05 September 2017
- 稿件说明：
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XUE Juanqin, WANG Sen, HAN Xiaolong, et al. Prepartion and separation performance of GO modified PVDF ultrafiltration membrane[J]. CIESC Journal, 2017, (9): 3466-3473.
DOI：

XUE Juanqin, WANG Sen, HAN Xiaolong, et al. Prepartion and separation performance of GO modified PVDF ultrafiltration membrane[J]. CIESC Journal, 2017, (9): 3466-3473. DOI： 10.11949/j.issn.0438-1157.20170217.

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。

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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