Facile Strategy to Construct High-Performance Nanofiltration Membranes by Synergy of Graphene Oxide and Polyvinyl Alcohol

Shen，Lufang1,2; Xie，Quanling2,4; Hong，Zhuan2,4; Wu，Chenpu1,2; Yu，Tong2,4; Fang，Hua2,4; Xiong，Ying3; Zhang，Guoliang5; Lu，Yinghua1; Shao，Wenyao1

2020-10-21

10.1021/acs.iecr.0c03390

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   影响因子和分区

0888-5885

1520-5045

Graphene oxide (GO), as an emerging nanofiller, is commonly incorporated into the polypiperazine amide (PPA) selective layer to enhance nanofiltration (NF) performance. However, GO's dispersibility and compatibility present outstanding challenges for fabricating high-performance GO-incorporated NF membranes. In this study, polyvinyl alcohol (PVA) and GO were introduced into the aqueous solution at the same time to enhance the membrane performance by taking advantage of the synergetic effects of GO and PVA. GO's dispersibility in aqueous solution and its compatibility within the PPA matrix were significantly improved because of the introduction of PVA. Furthermore, both PVA and GO contributed to the diffusion behavior of aqueous monomers for constructing defect-free, rougher, thinner, and more hydrophilic NF membranes. With the introduction of 100 ppm GO and 0.05 wt % PVA into the aqueous solution during the interfacial polymerization process, the optimal thin-film nanocomposite NF membrane exhibited a water flux of 84.2 LMH without reducing the salt rejections (97.6% for Na2SO4), which were 69.1 and 36.7% higher than the pristine thin-film composite (TFC)-blank and TFC-PVA membranes, respectively. Meanwhile, an excellent antifouling performance was achieved with a flux recovery rate of 92.1% because of the lower negative charge and excellent hydrophilicity of the membrane surface. This study develops a simple and effective approach to construct high-performance NF membranes.

SCI ; EI

英语

其他

Fundamental Research Funds for Technology Planning Project of Xiamen City, China[3502Z20183016] ; Scientific Research Foundation of Third Institute of Oceanography, MNR[2019012] ; Science & Technology Planning Project of Fujian Province[2019H0049] ; Xiamen Ocean Research and Development Institute[K200103] ; National Natural Science Foundation of China[21736009]

Engineering

Engineering, Chemical

WOS:000584932100025

AMER CHEMICAL SOC

20204909563040

Graphene ; Nanofiltration ; Sodium sulfate ; Amides ; Nanocomposite films ; Composite membranes ; Solutions ; Hydrophilicity ; Thin films ; Polyvinyl alcohols

Semiconducting Materials:712.1 ; Nanotechnology:761 ; Chemical Plants and Equipment:802.1 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Crystalline Solids:933.1

CHEMISTRY

2-s2.0-85096837223

Scopus

1.Department of Chemical and Biochemical Engineering,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,361005,China
2.Technology Innovation Center for Exploitation of Marine Biological Resources,Third Institute of Oceanography,Ministry of Natural Resources,Xiamen,361005,China
3.Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Fujian Collab. Innovation Center for Exploitation and Utilization of Marine Biological Resources,Xiamen,361005,China
5.Institute of Oceanic and Environmental Chemical Engineering,State Key Lab Breeding Base of Green Chemical Synthesis Technology,Zhejiang University of Technology,Hangzhou,310014,China

Shen，Lufang,Xie，Quanling,Hong，Zhuan,et al. Facile Strategy to Construct High-Performance Nanofiltration Membranes by Synergy of Graphene Oxide and Polyvinyl Alcohol[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(42):19001-19011.

Shen，Lufang.,Xie，Quanling.,Hong，Zhuan.,Wu，Chenpu.,Yu，Tong.,...&Shao，Wenyao.(2020).Facile Strategy to Construct High-Performance Nanofiltration Membranes by Synergy of Graphene Oxide and Polyvinyl Alcohol.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(42),19001-19011.

Shen，Lufang,et al."Facile Strategy to Construct High-Performance Nanofiltration Membranes by Synergy of Graphene Oxide and Polyvinyl Alcohol".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.42(2020):19001-19011.