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Chemcial Industry and Engineering 2023, Vol. 40 Issue (2) :104-113    DOI: 10.13353/j.issn.1004.9533.20210840
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Preparation and separation performance of nanoparticles/graphene oxide modified composite membrane
ZHOU Jianmin1, LI Fei1,2,3,4, FEI Liting1, LIU Jie1,2,3,4, JI Zhiyong1,2,3,4, ZHAO Yingying1,2,3,4, WANG Jing1,2,3,4, GUO Xiaofu1,2,3,4, WANG Shizhao1,2,3,4, YUAN Junsheng1,2,3,4, BI Jingtao1,2,3,4, LIU Fengzhen1
1. Engineering Research Center for Chemical Technology of the Efficient Utilization of Seawater Resources, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
2. Collaborative Innovation Center of Hebei Modern Marine Chemical Technology, Tianjin 300130, China;
3. Chemical Energy Conservation Process Integration and Resource Utilization National-Local Joint Engineering Laboratory, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
4. Tianjin Key Laboratory of Intrinsically Safe Chemical Technology, Tianjin 300130, China

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Abstract On the surface of polyamide nanofiltration membranes (NF), two nanoparticle intercalated graphene oxide composite membranes were loaded through the method of vacuum extraction filtration and pressure spraying. The mass ratio of graphene oxide (GO) and silicon dioxide (SiO2) for the composite membranes GOS1, GOS2, GOS3, GOS4 were 1∶1, 2∶1, 3∶1, 4∶1. The mass ratio of graphene oxide (GO) and titanium dioxide (TiO2) for the composite membranes GOT1, GOT2, GOT3, GOT4 were 1∶1, 2∶1, 3∶1, 4∶1. GOT and GOS composite membranes were characterized by SEM, EDS,XPS and GIWAXS. The results indicated that GO and nanoparticles were uniformly loaded on the surface of polyamide nanofiltration membrane. The properties of the composite membranes were studied, and the water purification mechanism of the composite membranes was speculated. The water flux of GOT composite membrane can reach 50 L·m-2·h-1 at 0.75 MPa, which is 25% higher than that of the original substrate. The GOT composite membrane has the higher flux and maintain a higher flux compared with the original base membrane. At the same time, it can maintain a rejection rate of about 90% for salt solution and heavy metal ions. This topic provides a new process idea for the preparation of graphene oxide composite membranes and a composite membrane with higher purification efficiency for wastewater treatment.
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Articles by authors
ZHOU Jianmin
LI Fei
FEI Liting
LIU Jie
JI Zhiyong
ZHAO Yingying
WANG Jing
GUO Xiaofu
WANG Shizhao
YUAN Junsheng
BI Jingtao
LIU Fengzhen
Keywordsgraphene oxide   nanoparticles   composite membranes   modification     
Received 2021-11-05;
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ZHOU Jianmin, LI Fei, FEI Liting, LIU Jie, JI Zhiyong, ZHAO Yingying, WANG Jing, GUO Xiaofu, WANG Shizhao, YUAN Junsheng, BI Jingtao, LIU Fengzhen.Preparation and separation performance of nanoparticles/graphene oxide modified composite membrane[J]  Chemcial Industry and Engineering, 2023,V40(2): 104-113
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