Preparation of a non-hydrothermal NaA zeolite membrane and defect elimination by vacuum-inhalation repair method
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2016.10.001
Abstract: Abstract This work reports the preparation of a non-hydrothermal NaA zeolite and its stainless steel-supported membrane using geopolymer-gel-thermal-conversion (GGTC) combined with a dip-coating method, which does not require hydrothermal processing. The XRD and high-resolution transmission… read more here.
Keywords: non hydrothermal; zeolite; zeolite membrane; naa zeolite ... See more keywords
Synthesis of NaA-zeolite microspheres by conversion of geopolymer and their performance of Pb (II) removal
Sign Up to like & getrecommendations! Published in 2020 at "Applied Clay Science"
DOI: 10.1016/j.clay.2020.105914
Abstract: Abstract A simple and sustainable preparation process for converting metakaolin-based geopolymers into NaA-zeolite microspheres (NaA-ZMs) via suspension dispersion method under mild condition was explored. Then NaA-ZMs used for static and dynamic Pb (II) removal. The… read more here.
Keywords: synthesis naa; removal; naa zeolite; zeolite microspheres ... See more keywords
Preparation of inexpensive NaA zeolite membrane on pozzolan support at low temperature for dehydration of alcohol solutions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of environmental chemical engineering"
DOI: 10.1016/j.jece.2018.06.049
Abstract: Abstract In this paper, inexpensive NaA zeolite membrane was hydrothermally prepared by in situ crystallization on flat pozzolan support at low temperature, and applied for dehydration of ethanol and isopropanol solutions through pervaporation process. The… read more here.
Keywords: temperature; zeolite; zeolite membrane; naa zeolite ... See more keywords
Structure, stability and permeation properties of NaA zeolite membranes for H2O/H2 and CH3OH/H2 separations
Sign Up to like & getrecommendations! Published in 2018 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2017.08.012
Abstract: Abstract NaA zeolite membranes were synthesised in the secondary growth hydrothermal method based on the seeding of the inner surface of a ceramic α-alumina tube. The impacts of crystallisation time and zeolite precursor concentration (in… read more here.
Keywords: zeolite; naa zeolite; structure stability; zeolite membranes ... See more keywords
Understanding the effect of zeolite crystal expansion/contraction on separation performance of NaA zeolite membrane: A combined experimental and molecular simulation study
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2017.05.057
Abstract: Experimental measurements and molecular simulations were used to investigate the effect of adsorption-induced changes in zeolite crystal size on the separation performance of NaA zeolite membrane for dehydration of alcohols. The vapor permeation (VP) separations… read more here.
Keywords: zeolite; water; naa zeolite; zeolite membrane ... See more keywords
Interzeolite Conversion-Synthesized Sub-1 μm NaA Zeolite Membrane for C2H2/C2H4 Selective Separation.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c03353
Abstract: Zeolite membranes with reduced thickness and high continuity are of paramount importance for accelerating selective gas separation for resemblant molecules, and the synthesis of such membranes remains a grand challenge. Herein, we developed an interzeolite… read more here.
Keywords: interzeolite conversion; zeolite; naa zeolite; membrane ... See more keywords
Synthesis of Glue-Free NaA Zeolite Granules from Natural Kaolin for the Adsorption of Pb(II) Ions in Aqueous Solution Using a Fixed-Bed Column Study
Sign Up to like & getrecommendations! Published in 2021 at "ACS Omega"
DOI: 10.1021/acsomega.1c02658
Abstract: NaA zeolite-coated metakaolin granules (MKG@NaA) were successfully synthesized from kaolin mineral by primary growth in the hydrothermal reaction without using glue or a seed crystal. The XRD and SEM analysis results revealed that a layer… read more here.
Keywords: adsorption; column; naa zeolite; fixed bed ... See more keywords
Preparation of colloidal hydrated alumina modified NaA zeolite derived from rice husk ash for effective removal of fluoride ions from water medium
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Asian Ceramic Societies"
DOI: 10.1080/21870764.2020.1749375
Abstract: ABSTRACT Alumina is found to be a good adsorbent for the removal of fluoride. In the present study, rice husk ash-derived NaA zeolite has been modified with colloidal hydrated alumina in a cost-effective process for… read more here.
Keywords: fluoride ions; removal fluoride; removal; naa zeolite ... See more keywords