Fabrication and characterization of zeolitic imidazolate framework-embedded cellulose acetate membranes for osmotically driven membrane process

Teayeop Kim; Moon-Ki Choi; Hyun S Ahn; Junsuk Rho; Hyung Mo Jeong; Kyunghoon Kim

doi:10.1038/s41598-019-42235-5

Fabrication and characterization of zeolitic imidazolate framework-embedded cellulose acetate membranes for osmotically driven membrane process

Sci Rep. 2019 Apr 8;9(1):5779. doi: 10.1038/s41598-019-42235-5.

Authors

Teayeop Kim¹, Moon-Ki Choi¹, Hyun S Ahn², Junsuk Rho³, Hyung Mo Jeong⁴, Kyunghoon Kim⁵

Affiliations

¹ School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
² Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea.
³ Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea. jsrho@postech.ac.kr.
⁴ Department of Materials Science & Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea. hmjeong704@kangwon.ac.kr.
⁵ School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea. kenkim@skku.edu.

Abstract

Zeolitic imidazolate framework-302 (ZIF-302)-embedded cellulose acetate (CA) membranes for osmotic driven membrane process (ODMPs) were fabricated using the phase inversion method. We investigated the effects of different fractions of ZIF-302 in the CA membrane to understand their influence on ODMPs performance. Osmotic water transport was evaluated using different draw solution concentrations to investigate the effects of ZIF-302 contents on the performance parameters. CA/ZIF-302 membranes showed fouling resistance to sodium alginate by a decreased water flux decline and increased recovery ratio in the pressure retarded osmosis (PRO) mode. Results show that the hydrothermally stable ZIF-302-embedded CA/ZIF-302 composite membrane is expected to be durable in water and alginate-fouling conditions.

Publication types

Research Support, Non-U.S. Gov't