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NaA zeolite synthesis from geopolymer precursor

Published online by Cambridge University Press:  10 October 2011

Cui Xuemin ,
He Yan ,
Liu Leping  and
Chen Jinyu
Cui Xuemin*
Affiliation:
Guangxi Key Lab of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
He Yan
Affiliation:
Guangxi Key Lab of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
Liu Leping
Affiliation:
Guangxi Key Lab of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
Chen Jinyu
Affiliation:
Guangxi Key Lab of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
*
Address all correspondence to Cui Xuemin at cui-xm@tsinghua.edu.cn
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Abstract

This study confirms the existence of several nanometer-ordered structures in amorphous Al2O3–2SiO2–Na2O–7H2O geopolymers by high-resolution transmission electron microscopy and selected area electron diffraction. The composition ratio of the geopolymers was designed according to the NaA zeolite composition (Si/Al/Na atom ratio of 1:1:1), and the expected NaA molecular sieve was achieved by the Al2O3–2SiO2–Na2O–7H2O geopolymers through a hydrothermal reaction. This design concept was used to convert geopolymers into zeolite molecular sieves and provides a new preparation method for zeolite membranes or zeolite bulk materials.

Type
Rapid Communications
Information
MRS Communications , Volume 1 , Issue 1 , November 2011 , pp. 49 - 51
Copyright
Copyright © Materials Research Society 2011

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