151
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Huang S, Wu MB, Zhu CY, Ma MQ, Yang J, Wu J, Xu ZK. Polyamide Nanofiltration Membranes Incorporated with Cellulose Nanocrystals for Enhanced Water Flux and Chlorine Resistance. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2019. [DOI: 10.1021/acssuschemeng.9b01651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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152
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Gao S, Zhu Y, Gong Y, Wang Z, Fang W, Jin J. Ultrathin Polyamide Nanofiltration Membrane Fabricated on Brush-Painted Single-Walled Carbon Nanotube Network Support for Ion Sieving. ACS NANO 2019; 13:5278-5290. [PMID: 31017384 DOI: 10.1021/acsnano.8b09761] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Recently, ultrathin polyamide nanofiltration membranes fabricated on nanomaterial-based supports have overcome the limitations of conventional supports and show greatly improved separation performance. However, the feasibility of the nanomaterial-based supports for large-scale fabrication of the ultrathin polyamide membrane is still unclear. Herein, we report a controllable and saleable fabrication technique for a single-walled carbon nanotube (SWCNT) network support via brush painting. The mechanical and chemical stability of the SWCNT network support were carefully examined, and an ultrathin polyamide membrane with thickness of ∼15 nm was successfully fabricated based on such a support. The obtained thin-film composite (TFC) polyamide nanofiltration membranes exhibited extremely high water permeability of ∼40 L m-2 h -1 bar-1, a high Na2SO 4 rejection of 96.5%, and high monovalent/divalent ion permeation selectivity and maintained highly efficient ion sieving throughout 48 h of testing. This work demonstrates a practical route toward the controllable large-scale fabrication of the TFC membrane with an SWCNT network support for ion and molecule sieving. This work is also expected to boost the mass production and practical applications of state-of-the-art membranes composed of one-dimensional and two-dimensional nanomaterials as well as the nanomaterial-supported TFC membranes.
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Affiliation(s)
- Shoujian Gao
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
- i-Lab and CAS Key Laboratory of Nano-Bio Interface, CAS Center for Excellence in Nanoscience , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yuzhang Zhu
- i-Lab and CAS Key Laboratory of Nano-Bio Interface, CAS Center for Excellence in Nanoscience , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yuqiong Gong
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Zhenyi Wang
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
- i-Lab and CAS Key Laboratory of Nano-Bio Interface, CAS Center for Excellence in Nanoscience , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Wangxi Fang
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
- i-Lab and CAS Key Laboratory of Nano-Bio Interface, CAS Center for Excellence in Nanoscience , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Jian Jin
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
- i-Lab and CAS Key Laboratory of Nano-Bio Interface, CAS Center for Excellence in Nanoscience , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
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153
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Wu X, Zhou G, Cui X, Li Y, Wang J, Cao X, Zhang P. Nanoparticle-Assembled Thin Film with Amphipathic Nanopores for Organic Solvent Nanofiltration. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17804-17813. [PMID: 31009576 DOI: 10.1021/acsami.9b03753] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Polymeric thin film composite (TFC) membranes have been proven promising for a wide range of separation applications. However, their development is significantly hindered by low permeance (below 8.0 L m-2 h-1 bar-1). Here, we report the fabrication of new films with nanoparticle-assembled structure via interfacial polymerization using quantum dots (QDs) as building blocks. The tailored QDs with hydrophobic and hydrophilic regions permit cross-linking into nanoparticle-assembled defect-free thin films. Significantly, amphipathic QDs show good affinity to polar and nonpolar molecules, facilitating their fast dissolution into film. Meanwhile, the nanopores (∼1.4 nm) render fleet diffusion of molecules, which highly promotes the transfer of molecules within the film. This synergetic effect endows the resultant TFC membrane with high permeance, over 2 orders of magnitude higher than the conventional polyamide films. The permeances for acetonitrile and n-hexane reach 46.9 and 50.8 L m-2 h-1 bar-1, respectively. We demonstrate that films fabricated by hydrophilic and hydrophobic QDs exhibit different molecular transfer mechanisms, and the corresponding model equations are established. The film fabricated by amphipathic QDs shows a combination transfer mechanism of the two models. Furthermore, those QD-based TFC membranes display favorable structural and operational stability, holding promise for industrial separation applications.
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Affiliation(s)
- Xiaoli Wu
- School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Guoli Zhou
- School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Xulin Cui
- School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Yifan Li
- School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Jingtao Wang
- School of Chemical Engineering and Energy , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Xingzhong Cao
- Multi-discipline Research Division, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
| | - Peng Zhang
- Multi-discipline Research Division, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China
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154
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Yang H, Yang L, Wang H, Xu Z, Zhao Y, Luo Y, Nasir N, Song Y, Wu H, Pan F, Jiang Z. Covalent organic framework membranes through a mixed-dimensional assembly for molecular separations. Nat Commun 2019; 10:2101. [PMID: 31068595 PMCID: PMC6506600 DOI: 10.1038/s41467-019-10157-5] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 04/24/2019] [Indexed: 11/14/2022] Open
Abstract
Covalent organic frameworks (COFs) hold great promise in molecular separations owing to their robust, ordered and tunable porous network structures. Currently, the pore size of COFs is usually much larger than most small molecules. Meanwhile, the weak interlamellar interaction between COF nanosheets impedes the preparation of defect-free membranes. Herein, we report a series of COF membranes through a mixed-dimensional assembly of 2D COF nanosheets and 1D cellulose nanofibers (CNFs). The pore size of 0.45-1.0 nm is acquired from the sheltering effect of CNFs, rendering membranes precise molecular sieving ability, besides the multiple interactions between COFs and CNFs elevate membrane stability. Accordingly, the membranes exhibit a flux of 8.53 kg m-2 h-1 with a separation factor of 3876 for n-butanol dehydration, and high permeance of 42.8 L m-2 h-1 bar-1 with a rejection of 96.8% for Na2SO4 removal. Our mixed-dimensional design may inspire the fabrication and application of COF membranes.
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Affiliation(s)
- Hao Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Leixin Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Hongjian Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Ziang Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Yumeng Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Yi Luo
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Nayab Nasir
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Yimeng Song
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin, 300072, China.
| | - Fusheng Pan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.
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155
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Yuan B, Li P, Sun H, Zhao S, Li P, Sun H, Niu QJ. Novel non-trimesoyl chloride based polyamide membrane with significantly reduced Ca2+ surface deposition density. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.02.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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156
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Ultrathin nanofiltration membrane with polydopamine-covalent organic framework interlayer for enhanced permeability and structural stability. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.01.040] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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157
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Wang J, Zhang S, Wu P, Shi W, Wang Z, Hu Y. In Situ Surface Modification of Thin-Film Composite Polyamide Membrane with Zwitterions for Enhanced Chlorine Resistance and Transport Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12043-12052. [PMID: 30817111 DOI: 10.1021/acsami.8b21572] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
High-performance chlorine-resistant thin-film composite (TFC) membranes with zwitterions were fabricated by in situ surface modification of polyamide with 2,6-diaminopyridine and the subsequential quaternization with 3-bromopropionic. The successful modification of the TFC polyamide surface with zwitterions was confirmed by various characterizations including surface chemistry, surface hydrophilicity, and surface charge. The transport performance of the membrane was measured in both of the cross-flow reverse osmosis (RO) and forward osmosis processes, and the results showed that the modified TFC membrane improved both of its water permeability and perm-selectivity with the increased A and A/ B ratios upon modification with zwitterions. The chlorination challenging experiments were performed to demonstrate that the modified membrane enhanced its chlorine resistance without affecting its salt rejection upon 16 000 ppm·h chlorination exposure. A chlorination mechanism study illustrated that the modified membrane with zwitterions could prevent the Orton rearrangement of the benzene ring of the polyamide layer. Importantly and excitingly, the optimal chlorinated TFC membrane with zwitterions achieved a very high water flux of 72.15 ± 2.55 LMH with 99.67 ± 0.09% of salt rejection in the cross-flow RO process under 15 bar.
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Affiliation(s)
- Jing Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , P. R. China
| | - Si Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Pengfei Wu
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Wenxiong Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
- Center for Programmable Materials, School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798
| | - Zhi Wang
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , P. R. China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Research on Membrane Science and Technology, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
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158
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Liu S, Wu C, Hou X, She J, Liu S, Lu X, Zhang H, Gray S. Understanding the chlorination mechanism and the chlorine-induced separation performance evolution of polypiperazine-amide nanofiltration membrane. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.11.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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159
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Gong G, Wang P, Zhou Z, Hu Y. New Insights into the Role of an Interlayer for the Fabrication of Highly Selective and Permeable Thin-Film Composite Nanofiltration Membrane. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7349-7356. [PMID: 30668908 DOI: 10.1021/acsami.8b18719] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A triple-layered TFC nanofiltration (NF) membrane consisting of a polyamide (PA) top layer covered on a poly(ether sulfone) microfiltration membrane with a carbon nanotube (CNT) interlayer was fabricated via interfacial polymerization. The structure and properties of the PA active layer could be finely tailored by tuning the interfacial properties and pore structure of the CNT interlayer, including its surface pore size and thickness, thus improving its NF performance. This TFC NF membrane exhibited a high divalent salt rejection (the rejection of Na2SO4 and MgSO4 solution >98.3%) and dye rejection (the rejection of methyl violet (MV) >99.5%) with a high pure water flux of around 21 L m-2 h-1 bar-1. Excitingly, this membrane also showed excellent selectivity to both mono/divalent salt ion (the selectivity of Cl-/SO42- is as high as 85.5) and NaCl/dye solution (the selectivity of NaCl/MV is more than 123.5), which are much higher than most of other commercial and reported NF membranes. Moreover, this membrane also showed a good separation performance and long-term stability during a continuous NF process for a salt/dye mixture solution. This triple-layered TFC NF membrane showed a great promise for applications in both wastewater treatment and dyes recycling.
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Affiliation(s)
- Genghao Gong
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Ping Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Zongyao Zhou
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
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160
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Zhang H, Quan X, Fan X, Yi G, Chen S, Yu H, Chen Y. Improving Ion Rejection of Conductive Nanofiltration Membrane through Electrically Enhanced Surface Charge Density. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:868-877. [PMID: 30540165 DOI: 10.1021/acs.est.8b04268] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanofiltration (NF) is considered a promising candidate for brackish and seawater desalination. NF exhibits high multivalent ion rejection, but the rejection rate for monovalent ions is relatively low. Besides, great challenges remain for conventional NF membranes to achieve high ion rejection without sacrificing water flux. This work presents an effective strategy for improving the ion rejection of conductive NF membrane without decreasing the permeability through electrically assisted enhancement of surface charge density. When external voltage is increased from 0 to 2.5 V, the surface charge density of the membrane increases from 11.9 to 73.0 mC m-2, which is 6.1× higher than that without external voltage. Correspondingly, the rejection rate for Na2SO4 increases from 81.6 to 93.0% and that for NaCl improves from 53.9 to 82.4%; meanwhile, the membrane retains high permeabilities of 14.0 L m-2 h-1 bar-1 for Na2SO4 filtration and 14.5 L m-2 h-1 bar-1 for NaCl filtration. The Donnan steric pore model analysis suggests that the Donnan potential difference between the membrane and bulk solution is increased under electrical assistance, leading to increased ion transfer resistance for improved ion rejection. This work provides new insight into the development of advanced NF technologies for desalination and water treatment.
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Affiliation(s)
- Haiguang Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xinfei Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Gang Yi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Shuo Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Hongtao Yu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Yongsheng Chen
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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161
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Ultrafast formation of pyrogallol/polyethyleneimine nanofilms for aqueous and organic nanofiltration. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.10.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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162
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Yuan B, Jiang C, Li P, Sun H, Li P, Yuan T, Sun H, Niu QJ. Ultrathin Polyamide Membrane with Decreased Porosity Designed for Outstanding Water-Softening Performance and Superior Antifouling Properties. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43057-43067. [PMID: 30418742 DOI: 10.1021/acsami.8b15883] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Poly(piperazine-amide)-based nanofiltration membranes exhibit a smooth surface and superior antifouling properties but often have lower Ca2+ and Mg2+ rejection due to their larger inner micropore and thus cannot be extensively used in water-softening applications. To decrease the pore size of poly(piperazine-amide) membranes, we designed and synthesized a novel monomer, 1,2,3,4-cyclobutane tetracarboxylic acid chloride (BTC), which possesses a smaller molecular conformation than trimesoyl chloride (TMC). The thickness of the prepared BTC-piperazine (PIP) polyamide nanofilm via interfacial polymerization is as thin as 15 nm, significantly lower than the 50 nm thickness of the TMC-PIP nanofilm. The surface characterization reveals that the BTC-PIP polyamide membrane exhibits an enhanced hydrophilicity, a smooth surface, and a decreased surface-negative charge. The desalination performance (both rejection and water flux) of these membranes in terms of Ca2+ and Mg2+ exceeds that of the current commercial water-softening membranes. In addition, the BTC-PIP polyamide membrane also exhibits superior antifouling properties compared to the TMC-based polyamide membrane. More importantly, molecular simulations show that the BTC-PIP membrane has a lower average pore size than that of the TMC-PIP membrane, which demonstrates an enhanced steric hindrance effect, as confirmed by desalination performance. Our results demonstrate that in the household and industrial water-softening market, BTC-PIP membrane with decreased porosity, enhanced hydrophilicity, and smooth surface is preferred alternative to the conventional TMC-based polyamide membranes.
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Affiliation(s)
- Bingbing Yuan
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Chi Jiang
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Pengfei Li
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Honghong Sun
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Peng Li
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Tao Yuan
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Haixiang Sun
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
| | - Q Jason Niu
- State Key Laboratory of Heavy Oil Processing , China University of Petroleum (East China) , Qingdao 266555 , P. R. China
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163
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Sun H, Wu P. Tuning the functional groups of carbon quantum dots in thin film nanocomposite membranes for nanofiltration. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.07.044] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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164
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Yang Z, Zhou ZW, Guo H, Yao Z, Ma XH, Song X, Feng SP, Tang CY. Tannic Acid/Fe 3+ Nanoscaffold for Interfacial Polymerization: Toward Enhanced Nanofiltration Performance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9341-9349. [PMID: 30043615 DOI: 10.1021/acs.est.8b02425] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Conventional thin-film composite (TFC) membranes suffer from the trade-off relationship between permeability and selectivity, known as the "upper bound". In this work, we report a high performance thin-film composite membrane prepared on a tannic acid (TA)-Fe nanoscaffold (TFCn) to overcome such upper bound. Specifically, a TA-Fe nanoscaffold was first coated onto a polysulfone substrate, followed by performing an interfacial polymerization reaction between trimesoyl chloride (TMC) and piperazine (PIP). The TA-Fe nanoscaffold enhanced the uptake of amine monomers and provided a platform for their controlled release. The smaller surface pore size of the TA-Fe coated substrate further eliminated the intrusion of polyamide into the substrate pores. The resulting membrane TFCn showed a water permeability of 19.6 ± 0.5 L m2- h-1 bar-1, which was an order of magnitude higher than that of control TFC membrane (2.2 ± 0.3 L m-2 h-1 bar-1). The formation of a more order polyamide rejection layer also significantly enhanced salt rejection (e.g., NaCl, MgCl2, Na2SO4, and MgSO4) and divalent to monovalent ion selectivity (e.g., NaCl/MgSO4). Compared to conventional TFC nanofiltration membranes, the novel TFCn membrane successfully overcame the longstanding permeability and selectivity trade-off. The current work paves a new avenue for fabricating high performance TFC membranes.
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Affiliation(s)
- Zhe Yang
- Department of Civil Engineering , The University of Hong Kong , Pokfulam , Hong Kong
| | - Zhi-Wen Zhou
- Department of Mechanical Engineering , The University of Hong Kong , Pokfulam , Hong Kong
| | - Hao Guo
- Department of Civil Engineering , The University of Hong Kong , Pokfulam , Hong Kong
| | - Zhikan Yao
- Department of Civil Engineering , The University of Hong Kong , Pokfulam , Hong Kong
| | - Xiao-Hua Ma
- Department of Civil Engineering , The University of Hong Kong , Pokfulam , Hong Kong
- School of Chemical Engineering , East China University of Science and Technology , Mei Long Road 130 , Shanghai 200237 , P. R. China
| | - Xiaoxiao Song
- Centre for Membrane and Water Science & Technology, Ocean College , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Shien-Ping Feng
- Department of Mechanical Engineering , The University of Hong Kong , Pokfulam , Hong Kong
| | - Chuyang Y Tang
- Department of Civil Engineering , The University of Hong Kong , Pokfulam , Hong Kong
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165
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Droudian A, Youn SK, Wehner LA, Wyss RM, Li M, Park HG. Enhanced Chemical Separation by Freestanding CNT-Polyamide/Imide Nanofilm Synthesized at the Vapor-Liquid Interface. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19305-19310. [PMID: 29808667 DOI: 10.1021/acsami.8b02329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In chemical separation, thin membranes exhibit high selectivity, but often require a support at the expense of permeance. Here, we report a pinhole-free polymeric layer synthesized within freestanding carbon nanotube buckypaper through vapor-liquid interfacial polymerization (VLIP). The VLIP process results in thin, smooth and uniform polyamide and imide films. The scaffold reinforces the nanofilm, defines the membrane thickness, and introduces an additional transport mechanism. Our membranes exhibit superior gas selectivity and osmotic semipermeability. Plasticization resistance and high permeance in hydrocarbon separation together with a considerable improvement in water-salt permselectivity highlight their potential as new membrane architecture for chemical separation.
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Affiliation(s)
- Amirhossein Droudian
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
| | - Seul Ki Youn
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
| | - Linda A Wehner
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
| | - Roman M Wyss
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
| | - Meng Li
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
| | - Hyung Gyu Park
- Nanoscience for Energy Technology and Sustainability, Department of Mechanical and Process Engineering , Eidgenössische Technische Hochschule (ETH) Zurich , Tannenstrasse 3 , Zurich CH-8092 , Switzerland
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166
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Sun J, Li J, Liu D, Ma Y, Yang S. pH-Responsive Janus Film Constructed with Hydrogen-Bonding Assembly and Dopamine Chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6653-6659. [PMID: 29715430 DOI: 10.1021/acs.langmuir.7b04339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly(acrylic acid) (PAA) was partially grafted with dopamine (PAA-dopa), and then layer-by-layer assembled with poly(vinylpyrrolidone) (PVPON) to prepare hydrogen-bonded (PVPON/PAA-dopa) n film. Polydopamine (PDA) was deposited on (PVPON/PAA-dopa) n film in the presence of oxidant, and hence the whole (PVPON/PAA-dopa) nPDA film was cross-linked. (PVPON/PAA-dopa) nPDA could be utilized as a platform to produce the free-standing Janus film because of the easy detaching process and various chemical reactivity of PDA layer. Ag nanoparticles were formed on (PVPON/PAA-dopa) nPDA film by electroless metallization. 1 H,1 H,2 H,2 H-Perfluorodecanethiol (PFDT) was used to further modify the film through Michael addition. After detaching from the substrate, (PVPON/PAA-dopa)20PDA/Ag/PFDT exhibits reversible swelling-shrinking behavior as the pH value changes. This free-standing film shows Janus character, one side is hydrophobic, whereas the other side is hydrophilic. In addition, the hydrophobic surface exhibits a surface-enhanced Raman scattering effect, whereas the hydrophilic side does not.
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167
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Shi M, Wang Z, Zhao S, Wang J, Zhang P, Cao X. A novel pathway for high performance RO membrane: Preparing active layer with decreased thickness and enhanced compactness by incorporating tannic acid into the support. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.025] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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168
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Nanoparticle-templated nanofiltration membranes for ultrahigh performance desalination. Nat Commun 2018; 9:2004. [PMID: 29785031 PMCID: PMC5962613 DOI: 10.1038/s41467-018-04467-3] [Citation(s) in RCA: 265] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 04/10/2018] [Indexed: 12/24/2022] Open
Abstract
Nanofiltration (NF) membranes with ultrahigh permeance and high rejection are highly beneficial for efficient desalination and wastewater treatment. Improving water permeance while maintaining the high rejection of state-of-the-art thin film composite (TFC) NF membranes remains a great challenge. Herein, we report the fabrication of a TFC NF membrane with a crumpled polyamide (PA) layer via interfacial polymerization on a single-walled carbon nanotubes/polyether sulfone composite support loaded with nanoparticles as a sacrificial templating material, using metal-organic framework nanoparticles (ZIF-8) as an example. The nanoparticles, which can be removed by water dissolution after interfacial polymerization, facilitate the formation of a rough PA active layer with crumpled nanostructure. The NF membrane obtained thereby exhibits high permeance up to 53.5 l m-2h-1 bar-1 with a rejection above 95% for Na2SO4, yielding an overall desalination performance superior to state-of-the-art NF membranes reported so far. Our work provides a simple avenue to fabricate advanced PA NF membranes with outstanding performance.
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169
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Integrated polyamide thin-film nanofibrous composite membrane regulated by functionalized interlayer for efficient water/isopropanol separation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.02.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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170
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Li D, Gou X, Wu D, Guo Z. A robust and stretchable superhydrophobic PDMS/PVDF@KNFs membrane for oil/water separation and flame retardancy. NANOSCALE 2018; 10:6695-6703. [PMID: 29589026 DOI: 10.1039/c8nr01274a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The wide application of superhydrophobic membranes has been limited due to their complicated preparation technology and weak durability. Inspired by the mechanical flexibility of nanofibrous biomaterials, nanofibrils have been successfully generated from Kevlar, which is one of the strongest synthetic fibers, by appropriate hydrothermal treatment. In this study, a robust superhydrophobic PDMS/PVDF@KNFs membrane is prepared via a simple one-step process and subsequent curing without combination with inorganic fillers. The as-prepared PDMS/PVDF@KNFs membrane not only shows efficient oil/water separation ability and oil absorption capacity but also has excellent superhydrophobicity stability after deformation. The resultant membrane shows stretchability, flexibility and flame retardance because of the reinforcing effect and the excellent flame retardancy of Kevlar. We believe that this simple fabrication of PDMS/PVDF@KNFs has promising applications in filtering membranes and wearable devices.
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Affiliation(s)
- Deke Li
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
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171
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He Y, Xu L, Feng X, Zhao Y, Chen L. Dopamine-induced nonionic polymer coatings for significantly enhancing separation and antifouling properties of polymer membranes: Codeposition versus sequential deposition. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.06.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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172
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Wang J, Wang Y, Zhu J, Zhang Y, Liu J, Van der Bruggen B. Construction of TiO 2 @graphene oxide incorporated antifouling nanofiltration membrane with elevated filtration performance. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.03.040] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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173
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Yang X, Du Y, Zhang X, He A, Xu ZK. Nanofiltration Membrane with a Mussel-Inspired Interlayer for Improved Permeation Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2318-2324. [PMID: 28187686 DOI: 10.1021/acs.langmuir.6b04465] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A mussel-inspired interlayer of polydopamine (PDA)/polyethylenimine (PEI) is codeposited on the ultrafiltration substrate to tune the interfacial polymerization of piperazine and trimesoyl chloride for the preparation of thin-film composite (TFC) nanofiltration membranes (NFMs). This hydrophilic interlayer results in an efficient adsorption of piperazine solution in the substrate pores. The solution height increases with the PDA/PEI codeposition time from 45 to 135 min due to the capillary effect of the substrate pores. The prepared TFC NFMs are characterized with thin and smooth polyamide selective layers by ATR/IR, XPS, FESEM, AFM, zeta potential, and water contact angle measurements. Their water permeation flux measured in a cross-flow process increases to two times as compared with those TFC NFMs without the mussel-inspired interlayer. These TFC NFMs also show a high rejection of 97% to Na2SO4 and an salt rejection order of Na2SO4 ≈ MgSO4 > MgCl2 > NaCl.
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Affiliation(s)
- Xi Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Yong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Xi Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Ai He
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
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174
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Gu J, Xiao P, Chen P, Zhang L, Wang H, Dai L, Song L, Huang Y, Zhang J, Chen T. Functionalization of Biodegradable PLA Nonwoven Fabric as Superoleophilic and Superhydrophobic Material for Efficient Oil Absorption and Oil/Water Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5968-5973. [PMID: 28135056 DOI: 10.1021/acsami.6b13547] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Although the construction of superwettability materials for oil/water separation has been developed rapidly, the postprocess of the used separation materials themselves is still a thorny problem due to their nondegradation in the natural environment. In this work, we reported the functionalization of polylactic acid (PLA) nonwoven fabric as superoleophilic and superhydrophobic material for efficient treatment of oily wastewater with eco-friendly post-treatment due to the well-known biodegradable nature of PLA matrix.
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Affiliation(s)
- Jincui Gu
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Peng Xiao
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Peng Chen
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Lei Zhang
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Hanlin Wang
- College of Environmental & Resource Sciences, Zhejiang University , 866 Yuhangtang Road, Hangzhou 310058, China
| | - Liwei Dai
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Liping Song
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Youju Huang
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Jiawei Zhang
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
| | - Tao Chen
- Ningbo Institute of Material Technology and Engineering, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Science , Ningbo 315201, China
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175
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Zhang X, Lv Y, Yang HC, Du Y, Xu ZK. Polyphenol Coating as an Interlayer for Thin-Film Composite Membranes with Enhanced Nanofiltration Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32512-32519. [PMID: 27933848 DOI: 10.1021/acsami.6b10693] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Thin-film composite (TFC) nanofiltration membranes are prepared via interfacial polymerization with a polyphenol coating as an interlayer for the thin and smooth polyamide selective layer. The polyphenol interlayer is simply fabricated by the codeposition of tannic acid and diethylenetriamine without changing the surface morphology of the polysulfone ultrafiltration substrate. An interfacial polymerization is conducted from piperazidine and trimesoyl chloride on the polyphenol interlayer to construct the polyamide selective layer. The as-prepared TFC nanofiltration membranes show nearly tripled fold of water permeation flux as compared with those prepared at the same condition without an interlayer. They also exhibit a high rejection to Na2SO4 (>98%) because the thin and defect-free polyamide selective layer is formed on the polyphenol interlayer. These nanofiltration properties have high reproducibility, which means the TFC nanofiltration membranes are suitable for scale-up industrial applications.
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Affiliation(s)
- Xi Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Yan Lv
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Hao-Cheng Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Yong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and ‡Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science & Engineering, Zhejiang University , Hangzhou 310027, China
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