Enhanced CO2 separation of mixed matrix membranes with ZIF-8@GO composites as fillers: Effect of reaction time of ZIF-8@GO

被引：66

作者：

Chen, Bingchen ^{[1
]}

Wan, Chao ^{[1
]}

Kang, Xueting ^{[1
]}

Chen, Mingqing ^{[1
]}

Zhang, Chunfang ^{[1
]}

Bai, Yunxiang ^{[1
]}

Dong, Liangliang ^{[1
]}

机构：

[1] Jiangnan Univ, Sch Chem & Mat Engn, Minist Educ, Key Lab Synthet & Biol Colloids, 1800 Lihu Rd, Wuxi 214122, Jiangsu, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2019年 / 223卷

基金：

中国国家自然科学基金;

关键词：

ZIF-8@GO composites; Mixed matrix membranes; in situ growth; CO2/N-2; 2008 polymer upper bound; METAL-ORGANIC FRAMEWORK; GRAPHITE OXIDE COMPOSITES; CARBON-DIOXIDE SEPARATION; GRAPHENE OXIDE; GAS SEPARATION; NANOCOMPOSITE MEMBRANES; HYBRID NANOCOMPOSITES; PERFORMANCE; ZIF-8; POLYSULFONE;

D O I：

10.1016/j.seppur.2019.04.063

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, a facile and scalable in situ growth method was used to synthesize ZIP-8@GO composites. The obtained ZIF-8@GO were blended with a CO2-philic, comb copolymer yielding a series of mixed matrix membranes (MMMs), which were evaluated for their performance in separation of CO2/N-2. The effect of reaction time for ZIF-8@GO composites on gas separation performance was systematically investigated. Pure and mixture gas permeation tests indicated that MMM with ZIF-8@GO by in situ growth for 6 h exhibited the largest improvement (CO2 permeability: 475 Barrer and CO2/N-2 selectivity: 58.2) compared with pure polymers, with the overall CO2/N-2 separation performance exceeding the 2008 polymer upper bound. Our strategy that the in situ growth of ZIF-8 on GO provides an effective way to design MMMs with well filler dispersion, structural features and separation performance.

引用

页码：113 / 122

页数：10

共 55 条

[1] Synthesis of metal-organic framework hybrid nanocomposites based on GO and CNT with high adsorption capacity for dye removal [J].