Synthesis of Potassium Ionic Sieve Membrane and its Selectivity to Potassium Ion in Seawater

Jun Sheng Yuan; Fei Li; Hui Ru Han; Zhi Yong Ji

doi:10.4028/www.scientific.net/AMR.178.300

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 178Synthesis of Potassium Ionic Sieve Membrane and...

Synthesis of Potassium Ionic Sieve Membrane and its Selectivity to Potassium Ion in Seawater

Abstract:

Potassium ionic sieve membrane was synthesized on porous α-Al2O3 tube support by the hydrothermal synthesis. The zeolite membranes were characterized by means of XRD and SEM. And the single-gas permeability through the membranes and selectivity to K+, Na+, Ca2+, Mg2+ were measured. The results show that the ideal separation factor is 3.68, which is close to Knudsen diffusion ratio 3.74 for H2/N2; the separation factors of the potassium ionic sieve membrane are , , respectively, indicating its high separation selectivity to potassium ion.

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Periodical:

Advanced Materials Research (Volume 178)

Pages:

300-307

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.178.300

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Online since:

December 2010

Authors:

Jun Sheng Yuan, Fei Li, Hui Ru Han, Zhi Yong Ji

Keywords:

Characterization, Hydrothermal Synthesis, Ionic Sieve Membrane for Potassium, Separation Factor

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