Tuning sol size to optimize organosilica membranes for gas separation

Huating Song; Yibin Wei; Chenying Wang; Shuaifei Zhao; Hong Qi

doi:10.1016/j.cjche.2017.04.010

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Tuning sol size to optimize organosilica membranes for gas separation

Separation Science and Engineering | Updated：2026-01-06

- Tuning sol size to optimize organosilica membranes for gas separation
- Tuning sol size to optimize organosilica membranes for gas separation
- 中国化学工程学报（英文版） 2018年26卷第1期页码：53-59
- Affiliations：
  
  2 Department of Environmental Sciences, Macquarie University, Sydney 2109, New South Wales,Australia
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.04.010
  中图分类号：
- 纸质出版：2018
- Accepted：
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Huating Song, Yibin Wei, Chenying Wang, 等. Tuning sol size to optimize organosilica membranes for gas separation[J]. 中国化学工程学报（英文版）, 2018,26(1):53-59.

Huating Song, Yibin Wei, Chenying Wang, Shuaifei Zhao, Hong Qi. Tuning sol size to optimize organosilica membranes for gas separation[J]. Chin.J.Chem.Eng., 2018, 26(1): 53-59.
Huating Song, Yibin Wei, Chenying Wang, 等. Tuning sol size to optimize organosilica membranes for gas separation[J]. 中国化学工程学报（英文版）, 2018,26(1):53-59. DOI： 10.1016/j.cjche.2017.04.010.

Huating Song, Yibin Wei, Chenying Wang, Shuaifei Zhao, Hong Qi. Tuning sol size to optimize organosilica membranes for gas separation[J]. Chin.J.Chem.Eng., 2018, 26(1): 53-59. DOI： 10.1016/j.cjche.2017.04.010.

摘要

Abstract

A series of organosilica sols are prepared by the polymeric sol-gel method using 1

2-bis(triethoxysilyl)ethane (BTESE) as the precursor. Particle size distributions of the BTESE-derived sols are systematically investigated by carefully adjusting the synthesis parameters (i.e.

water ratios

acid ratios and solvent ratios) in the sol process. In certain conditions

increasing the water ratio or the acid ratio tends to cause larger sol sizes and bimodal particle size distributions. However

higher solvent ratios lead to smaller sol sizes and unimodal particle size distributions. The organosilica membranes prepared from the optimized sols show excellent H

permeances (up to 4.2×10

-7

mol·m

-2

·s

-1

·Pa

-1

) and gas permselectitivies (H

/CO

is 9.5

is 50 and H

/CH

is 68). This study offers significant insights into the relationship between the sol synthesis parameters

sol sizes and membrane performance.

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