| Study on the construction of anti-fouling polyvinylidene fluoride membrane by single terminal amino polyethylene glycol biomimetic modification |
| Authors： Wu Xiuli,Tian Yimei |
| Units： Environmental Science and Engineering, Tianjin University, Tianjin 300072, China |
| KeyWords： codeposition; biomimetic modification; PVDF membrane; anti-fouling modification; antibacterial property |
| ClassificationCode：TQ028 |
| year,volume(issue):pagination： 2023,43(3):81-86 |
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Abstract： |
| The bionic anti-fouling PVDF membrane was prepared by using polydopamine one-step in situ co-deposition method. Polyethylene glycol (PEG) and copper (Cu) were immobilized on the surface of polyvinylidene fluoride (PVDF) membrane. X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) were used to study the surface structure and elemental composition of PVDF films with PEG and Cu fixed on them. Meanwhile, the effect of PEG and Cu on anti-fouling performance of PVDF membrane was analyzed by water contact angle, dynamic osmotic separation performance and antibacterial property. The results showed that, through one-step in-situ biomimetic modification of polydopamine and modifiers on the surface of the modified membrane, the surface hydrophilicity of the modified membrane was enhanced. The adsorption of organic proteins on the membrane surface and the adhesion of bacteria on the membrane surface were effectively inhibited (BSA interception rate was 95.2%; Escherichia coli inhibition rate 100%; Staphylococcus aureus inhibition rate was 100%.). And the permeability separation performance of the modified membrane was enhanced, showing a potential application prospect in the field of water treatment, especially in membrane bioreactor. |
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AuthorIntro： |
| 吴秀丽（1979-）女 籍贯山东潍坊，硕士研究生学历，主要研究方向：膜材料与应用 |
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Reference： |
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[1]Tang K, Xie J, Pan Y, et al. The optimization and regulation of energy consumption for MBR process: A critical review[J]. Journal of Environmental Chemical Engineering, 2022, 5: 108406. [2]Bhattacharyya A, Liu L, Lee K, et al. Review of biological processes in a membrane bioreactor (mbr): effects of wastewater characteristics and operational parameters on biodegradation efficiency when treating industrial oily wastewater[J]. Journal of Marine Science and Engineering, 2022, 10: 1229. [3]Zhang J, Pan X, Xue Q, et al. Antifouling hydrolyzed polyacrylonitrile/graphene oxide membrane with spindle-knotted structure for highly effective separation of oil-water emulsion[J]. Journal of Membrane Science, 2017, 532: 38-46. [4]赵秋燕,胡丽丽,王妍. 旋转膜组件对MBR内污泥特性及膜污染的影响[J].徐州工程学院学报, 2022, 37: 56-61. [5]Zhi X, Li P, Gan X, et al. Hemocompatibility and anti-biofouling property improvement of poly(ethylene terephthalate) via self-polymerization of dopamine and covalent graft of lysine[J]. Journal of Biomaterials Science Polymer Edition, 2014, 25: 1619-1628. [6]Lee C, Wu C, Tyan Y, et al. Identification of pyruvate kinase as a novel allergen in whiteleg shrimp (litopenaeus vannamei) by specific-IgE present in patients with shrimp allergy[J]. Food Chemistry, 2018, 258: 359-365. [7]Li Q, Bi Q Y, Lin H H, et al. A novel ultrafiltration (UF) membrane with controllable selectivity for protein separation[J]. Journal of Membrane Science, 2013, 427: 155-167. [8]Wang S, Li T, Chen C, et al. PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized under different reaction times [J]. Frontiers of Environmental Science & Engineering, 2017, 12: 3(1-12). [9]An Z H, Dai F Y, Wei C J, et al. Polydopamine/cysteine surface modified hemocompatible poly(vinylidene fluoride) hollow fiber membranes for hemodialysis[J]. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2018, 106B: 2869-2877. |
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