Volume 41, Issue 2 pp. 270-277
Research Article

Chitosan-Functionalized Graphene Oxide for Enhanced Permeability and Antifouling of Ultrafiltration Membranes

Juanqin Xue

Juanqin Xue

Xi'an University of Architecture and Technology, School of Metallurgical Engineering, 13 Yanta Road, 710055 Xi'an, Shaanxi, China

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Sen Wang

Sen Wang

Xi'an University of Architecture and Technology, School of Metallurgical Engineering, 13 Yanta Road, 710055 Xi'an, Shaanxi, China

Northwest University, School of Chemical Engineering, 229 North Taibai Road, 710069 Xi'an, Shaanxi, China

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Xiaolong Han

Corresponding Author

Xiaolong Han

Northwest University, School of Chemical Engineering, 229 North Taibai Road, 710069 Xi'an, Shaanxi, China

Tsinghua University, Department of Scientific Research and Development, Department of Chemical Engineering, The State Key Laboratory of Chemical Engineering, Tsinghua Park, 100084 Beijing, China

Correspondence: Xiaolong Han ([email protected]), Northwest University, School of Chemical Engineering, 229 North Taibai Road, Xi'an 710069, Shaanxi, China; Xiufu Hua ([email protected]), Tsinghua University, Department of Scientific Research and Development, Department of Chemical Engineering, The State Key Laboratory of Chemical Engineering, Tsinghua Park, Beijing 100084, China.Search for more papers by this author
Yuqi Wang

Yuqi Wang

Northwest University, School of Chemical Engineering, 229 North Taibai Road, 710069 Xi'an, Shaanxi, China

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Xiufu Hua

Corresponding Author

Xiufu Hua

Tsinghua University, Department of Scientific Research and Development, Department of Chemical Engineering, The State Key Laboratory of Chemical Engineering, Tsinghua Park, 100084 Beijing, China

Correspondence: Xiaolong Han ([email protected]), Northwest University, School of Chemical Engineering, 229 North Taibai Road, Xi'an 710069, Shaanxi, China; Xiufu Hua ([email protected]), Tsinghua University, Department of Scientific Research and Development, Department of Chemical Engineering, The State Key Laboratory of Chemical Engineering, Tsinghua Park, Beijing 100084, China.Search for more papers by this author
Jiding Li

Jiding Li

Tsinghua University, Department of Scientific Research and Development, Department of Chemical Engineering, The State Key Laboratory of Chemical Engineering, Tsinghua Park, 100084 Beijing, China

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First published: 20 October 2017
Citations: 28

Abstract

Chitosan-functionalized graphene oxide (CS-GO) was synthesized and incorporated into a poly(vinylidene fluoride) (PVDF) ultrafiltration membrane. The effect of CS-GO addition on the morphology and membrane performance was studied through water contact angle, scanning electron microscopy, atomic force microscopy, porosity, pore size, and permeation measurements as well as rejection tests and antifouling experiments. The CS-GO/PVDF membrane exhibited higher water flux, bovine serum albumin (BSA) rejection rate, and water flux recovery ratio, and lower BSA solution flux attenuation rate than those of unfilled PVDF, CS/PVDF, and GO/PVDF membranes. The excellent water permeability and antifouling performance can be attributed to the high hydrophilicity and good dispersion of CS-GO in the matrix.

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