Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation

Zhibin Ma; Peitong Lian; Jie Li; Yanxiong Ren; Yonghui Shi; Hanze Ma; Yuhang Guo; Qianfeng Pan; Sheng Yuan; Yutong Wang; Heyang Liu; Lixuan Liu; Yuao Dong; Yanlei Su; Jing Zhao; Quanfu An; Guangwei He; Zhongyi Jiang

doi:10.1016/j.advmem.2025.100150

Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation

Zhibin Ma, Peitong Lian, Jie Li, Yanxiong Ren, Yonghui Shi, Hanze Ma, Yuhang Guo, Qianfeng Pan, Sheng Yuan, Yutong Wang, Heyang Liu, Lixuan Liu, Yuao Dong, Yanlei Su, Jing Zhao, Quanfu An, Guangwei He, Zhongyi Jiang

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH₃) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH₃ significantly increased from 1738 g/(m²·h) to 4648 g/(m²·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO₂ permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components.

Original language	English
Article number	100150
Journal	Advanced Membranes
Volume	5
DOIs	https://doi.org/10.1016/j.advmem.2025.100150
State	Published - Jan 2025

Keywords

Bioethanol
Covalent organic framework
Mixed matrix membrane
PDMS
Pervaporation

Access to Document

10.1016/j.advmem.2025.100150

Cite this

Ma, Z., Lian, P., Li, J., Ren, Y., Shi, Y., Ma, H., Guo, Y., Pan, Q., Yuan, S., Wang, Y., Liu, H., Liu, L., Dong, Y., Su, Y., Zhao, J., An, Q., He, G., & Jiang, Z. (2025). Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation. Advanced Membranes, 5, Article 100150. https://doi.org/10.1016/j.advmem.2025.100150

@article{602bb1e94dfd47f280ac01791ccb556b,

title = "Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation",

abstract = "Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH3) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH3 significantly increased from 1738 g/(m2·h) to 4648 g/(m2·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO2 permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components.",

keywords = "Bioethanol, Covalent organic framework, Mixed matrix membrane, PDMS, Pervaporation",

author = "Zhibin Ma and Peitong Lian and Jie Li and Yanxiong Ren and Yonghui Shi and Hanze Ma and Yuhang Guo and Qianfeng Pan and Sheng Yuan and Yutong Wang and Heyang Liu and Lixuan Liu and Yuao Dong and Yanlei Su and Jing Zhao and Quanfu An and Guangwei He and Zhongyi Jiang",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors",

year = "2025",

month = jan,

doi = "10.1016/j.advmem.2025.100150",

language = "英语",

volume = "5",

journal = "Advanced Membranes",

issn = "2772-8234",

publisher = "KeAi Communications Co.",

}

Ma, Z, Lian, P, Li, J, Ren, Y, Shi, Y, Ma, H, Guo, Y, Pan, Q, Yuan, S, Wang, Y, Liu, H, Liu, L, Dong, Y, Su, Y, Zhao, J, An, Q, He, G & Jiang, Z 2025, 'Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation', Advanced Membranes, vol. 5, 100150. https://doi.org/10.1016/j.advmem.2025.100150

TY - JOUR

T1 - Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation

AU - Ma, Zhibin

AU - Lian, Peitong

AU - Li, Jie

AU - Ren, Yanxiong

AU - Shi, Yonghui

AU - Ma, Hanze

AU - Guo, Yuhang

AU - Pan, Qianfeng

AU - Yuan, Sheng

AU - Wang, Yutong

AU - Liu, Heyang

AU - Liu, Lixuan

AU - Dong, Yuao

AU - Su, Yanlei

AU - Zhao, Jing

AU - An, Quanfu

AU - He, Guangwei

AU - Jiang, Zhongyi

PY - 2025/1

Y1 - 2025/1

N2 - Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH3) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH3 significantly increased from 1738 g/(m2·h) to 4648 g/(m2·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO2 permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components.

AB - Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH3) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH3 significantly increased from 1738 g/(m2·h) to 4648 g/(m2·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO2 permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components.

KW - Bioethanol

KW - Covalent organic framework

KW - Mixed matrix membrane

KW - PDMS

KW - Pervaporation

UR - http://www.scopus.com/inward/record.url?scp=105004941963&partnerID=8YFLogxK

U2 - 10.1016/j.advmem.2025.100150

DO - 10.1016/j.advmem.2025.100150

M3 - 文章

AN - SCOPUS:105004941963

SN - 2772-8234

VL - 5

JO - Advanced Membranes

JF - Advanced Membranes

M1 - 100150

ER -

Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this