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HYDROPHILIC NANOFILTRATION MEMBRANES WITH SELF-POLYMERIZED AND STRONGLY-ADHERED POLYDOPAMINE AS SEPARATING LAYER 被引量:12

HYDROPHILIC NANOFILTRATION MEMBRANES WITH SELF-POLYMERIZED AND STRONGLY-ADHERED POLYDOPAMINE AS SEPARATING LAYER
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摘要 Inspired by the self-polymerization and strong adhesion characteristics of dopamine in aqueous conditions, a novel hydrophilic nanofiltration (NF) membrane was fabricated by simply dipping polysulfone (PSf) ultrafiltration (UF) substrate in dopamine solution. The changes in surface chemical composition and morphology of membranes were determined by Fourier transform infrared spectroscopy (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The experimental results indicated that the self-polymerized dopamine formed an ultrathin and defect-free barrier layer on the PSf UF membrane. The surface hydrophilicity of membranes was evaluated through water contact angle measurements. It was found that membrane hydrophilicity was significantly improved after coating a polydopamine (pDA) layer, especially after double coating. The dyes filtration experiments showed that the double-coated membranes were able to reject completely the dyes of brilliant blue, congo red and methyl orange with a pure water flux of 83.7 L/(mE.h) under 0.6 MPa. The zeta potential determination revealed the positively-charged characteristics of PSf/pDA composite membrane in NF process. The salt rejection of the membranes was characterized by 0.01 mmol/L of salts filtration experiment. It was demonstrated that the salts rejections followed the sequence: NaC1 〈 NaaSO4 〈 MgSO4 〈 MgC12 〈 CaCl2, and the rejection to CaC12 reached 68.7%. Moreover, the composite NF membranes showed a good stability in water-phase filtration process. Inspired by the self-polymerization and strong adhesion characteristics of dopamine in aqueous conditions, a novel hydrophilic nanofiltration (NF) membrane was fabricated by simply dipping polysulfone (PSf) ultrafiltration (UF) substrate in dopamine solution. The changes in surface chemical composition and morphology of membranes were determined by Fourier transform infrared spectroscopy (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The experimental results indicated that the self-polymerized dopamine formed an ultrathin and defect-free barrier layer on the PSf UF membrane. The surface hydrophilicity of membranes was evaluated through water contact angle measurements. It was found that membrane hydrophilicity was significantly improved after coating a polydopamine (pDA) layer, especially after double coating. The dyes filtration experiments showed that the double-coated membranes were able to reject completely the dyes of brilliant blue, congo red and methyl orange with a pure water flux of 83.7 L/(mE.h) under 0.6 MPa. The zeta potential determination revealed the positively-charged characteristics of PSf/pDA composite membrane in NF process. The salt rejection of the membranes was characterized by 0.01 mmol/L of salts filtration experiment. It was demonstrated that the salts rejections followed the sequence: NaC1 〈 NaaSO4 〈 MgSO4 〈 MgC12 〈 CaCl2, and the rejection to CaC12 reached 68.7%. Moreover, the composite NF membranes showed a good stability in water-phase filtration process.
作者 朱利平
出处 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2012年第2期152-163,共12页 高分子科学(英文版)
基金 financially supported by the National Natural Science Foundation of China(No.50803054) Zhejiang Provincial Nature Science Foundation of China(No.Y4100204)
关键词 DOPAMINE SELF-POLYMERIZATION Strong adhesion Nanofiltration membrane. Dopamine Self-polymerization Strong adhesion Nanofiltration membrane.
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  • 1Weinhold, M., Soubatch, S., Temirov, R., Rohlfing, M. and Jastorff, B., J. Phys. Chem. B, 2006, 110: 23756.
  • 2Xu, C.J., Xu, K., Gu, H.W., Zheng, R.K., Liu, H., Zhang, x.x., Guo, Z.H. and Xu, B., J. Am. Chem. Soc., 2004, 126: 9938.
  • 3Zurcher, S., Wackerlin, D., Bethuel, Y., Malisova, B. and Textor, M., J. Am. Chem. Soc., 2006,128: 1064.
  • 4Yu, M., Wang, J.H. and Deming, T.J., J. Am. Chem. Soc., 1999, 121: 5825.
  • 5Dalsin, J.L., Hu, B.H., Lee, B.P. and Messersmith, P.B., J. Am. Chem. Soc., 2003, 125: 4253.
  • 6Lee, H., Dellatore, S.M., Miller, W.M. and Messersmith, P.B., Science, 2007, 318: 426.
  • 7Li, B., Liu, W.P., Jiang, Z.Y., Dong, X., Wang, B.Y. and Zhong, Y.R., Langmuir, 2009, 25: 7368.
  • 8Pan, F.S., Jiang, H.P., Qian, S.Z., Jiang, Z.Y., Wang, J.T., Wang, B.Y. and Zhong, Y.R., J. Membr. Sci., 2009, 341: 279.
  • 9Xi, Z.Y., Xu, Y.Y., Zhu, L.P., Wang, Y. and Zhu, B.K, J. Membr. Sci., 2009, 327: 244.
  • 10Zhu, L.P., Yu, J.Z., Xu, Y.Y., Xi, Z.Y. and Zhu, B.K., Colloids and Surfaces B: Biointerfaces, 2009, 69: 152.

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  • 2李珍妮,邓字巍.仿贻贝黏附性多巴胺的研究与应用进展[J].高分子材料科学与工程,2015,31(1):185-190. 被引量:27
  • 3Abetz V, Brinkmann T, Dijkstra M, et al. Developme-nts in membrane research: from material via process design to industri- al application [J]. Advanced Engineering Materials, 2006, 8: 328-386.
  • 4Salta M, Wharton J A, Stoodley P, et al. Designing b-iomimetic antifouling surfaces [J]. Phlosophical Trans-actions of The Royal Society of London Series A-M-athematical Physical And Engi- neering Sciences, 2010,368 : 4729-4783.
  • 5Vullev VI. From biomimesis to bioinspiration: what' s the bene- fit for solar energy conversion applications [J]. The Journal of Physical Chemistry Letters, 2011, 2:503-511.
  • 6Kerusha Lutchmiaha, Verliefde ARD, Roest K, et al. Forward osmosis for ap-plication in wastewater treatment: A review [J]. waterresearch, 2014, 58: 179-197.
  • 7Rana D, Matsuura. Surface modification for antifouli-ng mem- branes [J]. Chemical Reviews, 2010, 110(4): 2448-2471.
  • 8Vermette P, Meagher L. Interactions of phospholipid- and poly (ethylene glycol)-modified surfaces with biol-ogical systems: re- lation to physieo-chemical propertiesand mechanisms [J]. Col- loids SurfB Biointerfaces, 2003, 28: 153-251.
  • 9Pechook S, Pokroy B. Self-assembling, bioinspired w-ax crystal- line surfaces with time-dependent wettability [J]. Advanced Ener- gy Materials, 2012, 22: 745-795.
  • 10Feng L, Li S H, Li Y S, et al. Super-hydrophobic surfaces: from natural to artificial [J]. Advanced Materials, 2002, 14(24): 1857-1860.

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