Volume 45, Issue 20 2400384
Research Article

A High-Quality Mixed Matrix Membrane with Nanosheets Assembled and Uniformly Dispersed Fillers for Ethanol Recovery

Siyu Pang

Siyu Pang

National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 P. R. China

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Liang Ma

Liang Ma

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, SINOPEC Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai, 201208 P. R. China

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Yongfu Yang

Yongfu Yang

State Key Laboratory of Biocatalysis and Enzyme Engineering, and School of Life Sciences, Hubei University, Wuhan, 430062 P. R. China

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Huidong Chen

Huidong Chen

High-Tech Reacher Institute, Beijing University of Chemical Technology, Beijing, 100029 P. R. China

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Lu Lu

Lu Lu

Paris Curie Engineer School, Beijing University of Chemical Technology, Beijing, 100029 P. R. China

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Shihui Yang

Shihui Yang

State Key Laboratory of Biocatalysis and Enzyme Engineering, and School of Life Sciences, Hubei University, Wuhan, 430062 P. R. China

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Jan Baeyens

Jan Baeyens

Department of Chemical Engineering, Sint-Katelijne-Waver, Ku Leuven, 2860 Belgium

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Zhihao Si

Corresponding Author

Zhihao Si

National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 P. R. China

E-mail: [email protected]; [email protected]

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Peiyong Qin

Corresponding Author

Peiyong Qin

National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 P. R. China

E-mail: [email protected]; [email protected]

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First published: 03 August 2024
Citations: 1

Abstract

A high-quality filler within mixed matrix membranes, coupled with uniform dispersity, endows a high-efficiency transfer pathway for the significant improvement on separation performance. In this work, a zeolite-typed MCM-22 filler is reported that is doped into polydimethylsiloxane (PDMS) matrix by ultrafast photo-curing technique. The unique structure of nanosheets assembly layer by layer endows the continuous transfer channels towards penetrate molecules because of the inter-connective nanosheets within PDMS matrix. Furthermore, an ultrafast freezing effect produced by fast photo-curing is used to overcome the key issue, namely filler aggregation, and further eliminates defects. When pervaporative separating a 5 wt% ethanol aqueous solution, the resulting MCM-22/PDMS membrane exhibits an excellent membrane flux of 1486 g m−2 h−1 with an ethanol separation factor of 10.2. Considering a biobased route for ethanol production, the gas stripping and vapor permeation through this membrane also shows a great enrichment performance, and the concentrated ethanol is up to 65.6 wt%. Overall, this MCM-22/PDMS membrane shows a high separation ability for ethanol benefited from a unique structure deign of fillers and ultrafast curing speed of PDMS, and has a great potential for bioethanol separation from cellulosic ethanol fermentation.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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