Volume 137, Issue 12 48488
Article

High-performance composite photocatalytic membrane based on titanium dioxide nanowire/graphene oxide for water treatment

Zongxue Yu

Corresponding Author

Zongxue Yu

College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

Correspondence to: Z. Yu (E-mail: [email protected])Search for more papers by this author
Haojie Zeng

Haojie Zeng

College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

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Xia Min

Xia Min

College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

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Xianfeng Zhu

Xianfeng Zhu

College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500 People's Republic of China

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First published: 30 September 2019
Citations: 31

ABSTRACT

In this study, a novel dopamine-modified TiO2 nanowire (NW)-intercalated graphene-oxide-based photocatalytic (NWC) membrane was prepared by vacuum-assisted filtration using a commercial cellulose acetate membrane as a support layer. At the same time, compared with the synthesized reduced graphene-oxide/polydopamine/TiO2 nanoparticle composite (NPC) membrane, it was found that the NWC membrane has high water flux (273 L m−2 h−1) and removal rate (above 98%) on the dye-oil emulsion. After 5 cycles of experiments, the NWC membrane maintained a relatively stable permeation flux and removal rate, which was significantly better than the NPC membrane. The results showed that the NWC membrane had a more uniform distribution of TiO2 NW, and had better antifouling ability, recyclability, and photocatalytic performance than NPC membrane. In summary, the NWC photocatalytic membrane of this study shows excellent water purification potential and provides a new path for photocatalytic water treatment. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48488.

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