Synthesis of graphene oxide/polyacrylamide composite membranes for organic dyes/water separation in water purification

被引：94

作者：

Cheng, Meng-meng ^{[1
]}

Huang, Lin-jun ^{[1
]}

Wang, Yan-xin ^{[1
]}

Zhao, Yun-chao ^{[1
]}

Tang, Jian-guo ^{[1
]}

Wang, Yao ^{[1
]}

Zhang, Yang ^{[1
]}

Hedayati, Mohammadhasan ^{[2
]}

Kipper, Matt J. ^{[2
]}

Wickramasinghe, S. Ranil ^{[3
]}

机构：

[1] Qingdao Univ, Coll Mat Sci & Engn, Natl Ctr Int Res Hybrid Mat Technol, Inst Hybrid Mat, Qingdao 266071, Peoples R China

[2] Colorado State Univ, Dept Chem & Biochem Engn, Ft Collins, CO 80523 USA

[3] Univ Arkansas, Dept Chem Engn, Fayetteville, AR 72703 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2019年 / 54卷 / 01期

关键词：

GRAPHITE OXIDE; NANOFILTRATION MEMBRANE; FILMS; PERFORMANCE; STABILITY; MOLECULES; REMOVAL; PH; DELAMINATION; FILTRATION;

D O I：

10.1007/s10853-018-2828-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To obtain nanofiltration membranes with high-performance in desalination and water purification, membranes of graphene oxide (GO), reduced graphene oxide (rGO) and GO/polyacrylamide (PAM) are prepared by a vacuum filtration method. This method is conducted in aqueous solution without any organic solvents. The graphene-based membranes (GBMs) are characterized by UV-visible spectroscopy, Fourier-transform infrared spectroscopy, transmission electron microscopy, atomic force microscopy, scanning electron microscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. The hydrophilicity of GBMs is also evaluated by contact angle measurement. The interlayer spacing of GO membrane (0.85nm), GO/PAM membrane (0.68nm) and rGO membrane (0.36nm) are measured by X-ray diffraction. The performance of the GBMs is evaluated on a dead-end filtration device. The water flux and retention of rhodamine B of the membranes are 399.04Lm(-2)h(-1)bar(-1) and 85.03% (GO), 188.89Lm(-2)h(-1)bar(-1) and 95.43% (GO/PAM), 85.85Lm(-2)h(-1)bar(-1) and 97.06% (rGO), respectively. The GO/PAM membrane has the best comprehensive separation performance because of its proper interlayer spacing. GO/PAM membranes provide potential advantages in the design of high-performance membranes for molecular separation and water purification.

引用

页码：252 / 264

页数：13

共 55 条

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