Polysulfate membrane prepared with a novel porogen for enhanced ultrafiltration performance

Jing-Yuan Zhou; Yue Shen; Ming-Jie Yin; Zhi-Peng Wang; Naixin Wang; Zhenping Qin; Quan-Fu An

Chemical Engineering Journal Advances (Nov 2022)

Polysulfate membrane prepared with a novel porogen for enhanced ultrafiltration performance

Jing-Yuan Zhou,
Yue Shen,
Ming-Jie Yin,
Zhi-Peng Wang,
Naixin Wang,
Zhenping Qin,
Quan-Fu An

Affiliations

Jing-Yuan Zhou: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Yue Shen: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Ming-Jie Yin: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Zhi-Peng Wang: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Naixin Wang: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Zhenping Qin: Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
Quan-Fu An: Corresponding author.; Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing 100124, China

Journal volume & issue: Vol. 12
p. 100397

Abstract

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A novel deep eutectic solvent (DES) is proposed as a multifunctional porogen to simultaneously improve the permeability and selectivity of the polysulfate (PSE) ultrafiltration (UF) membrane. The effects of DES on the formation process of PSE membrane were explored by the viscosity, cloud point, and phase inversion properties. The molecular weight cutoff (MWCO) of the prepared membranes decreased as the DES content increased to 3.0 wt%, reaching as small as 18.5 kDa, with an improved porosity of 81.9%. In addition, the water flux improved to 212.3 L/m2*h, which was 2.3-fold larger than that of the pristine PSE membrane, and the rejection efficiency for natural organic matter (NOM) was simultaneously enhanced. Considering the easy and cheap preparation of the DESs, the proposed method offers a new possibility for high-performance UF membranes preparation.

Published in Chemical Engineering Journal Advances

ISSN: 2666-8211 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/chemical-engineering-journal-advances

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