Fabrication of high performance ZrO<sub>2</sub>-TiO<sub>2</sub> NF membranes via a modified colloidal sol-gel process

LU Yawei; CHEN Xianfu; WEN Juanjuan; QIU Minghui; FAN Yiqun

doi:10.11949/j.issn.0438-1157.20150936

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Fabrication of high performance ZrO₂-TiO₂ NF membranes via a modified colloidal sol-gel process

更新时间：2025-12-10

- Fabrication of high performance ZrO₂-TiO₂ NF membranes via a modified colloidal sol-gel process
- CIESC Journal Issue 9, Pages: 3769-3775(2015)
- 作者机构：
  
  南京工业大学化工学院, 材料化学工程国家重点实验室, 国家特种分离膜工程技术研究中心,江苏,南京,210009
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150936
  CLC： Q028.5
- Online First：05 September 2015，
  
  Published：05 September 2015
- 稿件说明：
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LU Yawei, CHEN Xianfu, WEN Juanjuan, et al. Fabrication of high performance ZrO₂-TiO₂ NF membranes via a modified colloidal sol-gel process[J]. CIESC Journal, 2015, (9): 3769-3775. DOI: 10.11949/j.issn.0438-1157.20150936.
DOI：

LU Yawei, CHEN Xianfu, WEN Juanjuan, et al. Fabrication of high performance ZrO₂-TiO₂ NF membranes via a modified colloidal sol-gel process[J]. CIESC Journal, 2015, (9): 3769-3775. DOI: 10.11949/j.issn.0438-1157.20150936. DOI：

摘要

以水为溶剂

采用改进的颗粒溶胶工艺

通过溶胶制备参数的调控优化

制备得到平均粒径为3 nm的ZrO2-TiO2复合颗粒溶胶。采用浸浆法

在平均孔径为5 nm的管式α-Al2O3底膜上

经过一次涂膜制备得到完整无缺陷的ZrO2-TiO2复合纳滤膜。ZrO2-TiO2复合纳滤膜的平均膜厚约为200 nm

纯水渗透率约为23 L·m-2·h-1·(0.1 MPa)-1

对PEG的截留分子量为600。在pH 3

压力0.9 MPa的条件下

该膜对低浓度的Co2+、Sr2+、Cs+的截留率分别达到99.6 %、99.2 %和75.5 %。

Abstract

The optimized ZrO2-TiO2 composite colloidal sols with an average particle size of 3 nm were successfully synthesized via a modified colloidal sol-gel process by using water as solvent. Tubular α-Al2O3 membranes with a mean pore size of 5 nm were used as the intermediate layers. Defect-free ZrO2-TiO2 NF membranes were then fabricated on the interlayer surface via a dip-coating method. The ZrO2-TiO2 NF membranes with an average toplayer thickness of 200 nm showed the relatively high pure water permeability of about 23 L·m-2·h-1·(0.1 MPa)-1 and low MWCO of about 600. Meanwhile

the ZrO2-TiO2 NF membranes indicated the high retention rates for Co2+

Sr2+ and Cs+ of 99.6%

99.2% and 75.5% at the condition of low salts concentration

pH 3 and the transmembrane pressure of 0.9 MPa

respectively.

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Fabrication of high performance ZrO2-TiO2 NF membranes via a modified colloidal sol-gel process

DOI：10.11949/j.issn.0438-1157.20150936

摘要

Abstract

关键词

Keywords

references

Fabrication of high performance ZrO₂-TiO₂ NF membranes via a modified colloidal sol-gel process