In situ constructed zeolite membranes on rough supports with the assistance of reticulated hydrotalcite interlayer.

ABSTRACT: Zeolite membranes with unique physical and chemical properties are emerging as attractive candidates for membrane separation. However, defects in the zeolite layer seriously affect their molecular sieving performance. In this study, a novel strategy for preparing compact zeolite membranes on rough supports with the assistance of a reticulated hydrotalcite layer was developed. The reticulated hydrotalcite layer was grown on the inner surface of a 170 mm length ceramic tube by an in situ hydrothermal method, and a NaA zeolite membrane was prepared on this reticulated layer by the microwave-heating method. The hydrotalcite interlayer could not only improve the smoothness and regularity of the surface of the support but also fix the Si/Al active ingredients using its reticulate structur

SUBMITTER: Pan WY 

PROVIDER: S-EPMC9043786 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature