Applications and Formation Mechanism of Zeolite-like Structure of Geopolymer

被引：0

作者：

Cui Xuemin ^{[1
]}

Tang Qing ^{[1
]}

Li Chunmin ^{[1
]}

He Yan ^{[1
]}

Wang Yipin ^{[1
]}

Tong Zhangfa ^{[1
]}

机构：

[1] Guangxi Univ, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2015年 / 44卷

关键词：

geopolymer; zeolite; microstructure; structural heredity; zeolites membrane; MEMBRANES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Combining with the HRTEM, XRD and NMR research results, this paper confirmed that the chemosynthetic Na2O-2SiO(2)-Al2O3 geopolymer and NaA zeolite possess the structural heredity characteristic, and get the in-situ hydrothermal conversion zeolite from geopolymer by designing the geopolymer composition and process. Based on above research, a high strength and stability self-supporting NaA membrane could be synthesized from Na2O-2SiO(2)-Al2O3 geopolymers, which have densified surface and compressive strength of 57.6 MPa. In the NaCl solution with the mass percent of 3.5 % at the temperature of 25 degrees C, the water flux of NaA membrane is 0.42 kg.m(-2).h(-1) and the rejection rate of sodium ion is above 99.5 % when the film thickness is 9.4 mm.

引用

页码：600 / 604

页数：5

共 22 条

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