基于金属有机框架的杂化复合纳滤膜可控制备及对PPCPs去除机理研究

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中文摘要
杂化复合纳滤膜(TFN-NF)因同时具备较高的透水性和有机物拦截能力,是最有潜力的净水技术。但TFN-NF膜去除PPCPs过程中,纳米颗粒的作用机理尚不明确,纳米颗粒与聚酰胺相容性差导致的界面“缺陷”、膜运行的稳定性仍是亟待解决的难题。金属有机框架(MOF)具有与有机聚合物相容性好、孔道结构及化学性质可调等特点,可有效提高TFN-NF膜的效能。本项目从建立基于MOF的TFN-NF膜可控制备方法入手,探明膜表面/结构特性的调控机理;阐明TFN-NF膜对存在分子量、带电性、极性等差异不同类型PPCPs去除过程中,聚酰胺分离层孔道和MOF孔道“双位阻效应”与静电效应、偶极效应、疏水吸附的协同作用机制;揭示连续运行条件下,膜材料稳定性的时序变化特征对去除PPCPs效能的影响规律;建立TFN-NF膜“制备方法—表面/结构特性—稳定去除PPCPs效能”的联系机制,为优化制备TFN-NF膜提供理论依据。
英文摘要
Thin film nanocomposite nanofiltraion (TFN-NF) is the leading technology for drinking water treatment due to its high permeate flux and outstanding removal capabilities for dissolved organic matters. However, the actual function of the embedded nanoparticles (NPs) for the removal of pharmaceuticals and personal care products (PPCPs) is still unclear. Several crucial issues, such as defects induced by the heterogeneity between inorganic NPs and polyamide and the working stability of the TFN-NF membrane, should be addressed. Metal-organic frameworks (MOF) demonstrate excellent compatibility with polymer matrix and tunable pore structures and chemical properties. They have great potential for enhancing the performance of TFN-NF membranes. In this study, MOF was used as the embedded NPs to achieve the controllable preparation of TFN-NF membranes. Their effects on the membrane surface properties as well as membrane structures are investigated. The synergistic impacts of the “dual-hindrance” effect, which arises from the combination of the polyamide layer and the MOF apertures, with the electrostatic effect, dipole effect, and hydrophobic interaction on the removal of PPCPs of different molecular weight, charge, and polarity are analyzed. In addition, the continuous PPCPs removal in long-term runs is also discussed in consideration of the TFN-NF stability. Finally, the interconnection of the stable performance of TFN-NF with the membrane surface and structure properties and with the membrane fabrication method can be concluded, which will theoretically guide the optimization of the TFN-NF membranes for PPCPs removal.
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DOI:10.1016/j.jwpe.2023.103919
发表时间:2023-08
期刊:Journal of Water Process Engineering
影响因子:7
作者:Zhaohui Zhang;Tong Zhang;Liang Wang;Mengmeng Chen;Bin Zhao;Junjing Li;Cong Ma;Xiuru Chu
通讯作者:Zhaohui Zhang;Tong Zhang;Liang Wang;Mengmeng Chen;Bin Zhao;Junjing Li;Cong Ma;Xiuru Chu
Enhanced water permeance of a polyamide thin-film composite nanofiltration membrane with a metal-organic framework interlayer
金属有机骨架夹层聚酰胺薄膜复合纳滤膜的增强透水性能
DOI:10.1016/j.memsci.2021.119154
发表时间:2021-02
期刊:Journal of Membrane Science
影响因子:9.5
作者:Zhao Bin;Guo Zhiqiang;Wang Hongli;Wang Liang;Qian Yiran;Long Xingli;Ma Cong;Zhang Zhaohui;Li Junjing;Zhang Hongwei
通讯作者:Zhang Hongwei
DOI:10.1016/j.psep.2022.10.068
发表时间:2022-10
期刊:Process Safety and Environmental Protection
影响因子:7.8
作者:Zhaohui Zhang;Jing Wu;Lin-Xuan Shao;Liang Wang;Xiaoming Yang;Bin Zhao;Junjing Li;Cong Ma;Xiuru Chu;Pengda Zhang
通讯作者:Zhaohui Zhang;Jing Wu;Lin-Xuan Shao;Liang Wang;Xiaoming Yang;Bin Zhao;Junjing Li;Cong Ma;Xiuru Chu;Pengda Zhang
Polyamide thin film nanocomposite membrane containing polydopamine modified ZIF-8 for nanofiltration
含聚多巴胺改性 ZIF-8 的纳滤用聚酰胺薄膜纳米复合膜
DOI:10.1016/j.colsurfa.2020.125971
发表时间:2020-12
期刊:Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子:--
作者:Zhao Bin;Long Xingli;Wang Hongli;Wang Liang;Qian Yiran;Zhang Hongwei;Yang Chenyang;Zhang Zhaohui;Li Junjing;Ma Cong;Shi Yawei
通讯作者:Shi Yawei
DOI:10.1016/j.psep.2022.06.045
发表时间:2022
期刊:Chemical Engineering Research & Design
影响因子:--
作者:Cong Ma;Yaoyao Tian;Xinying Liu;Yajing Li;Pengda Zhang;Xiuru Chu;Liang Wang;Bin Zhao;Zhaohui Zhang
通讯作者:Zhaohui Zhang
纺丝相分离-气泡成核耦合作用致孔及中空海绵纤维成形机制
- 批准号:52303045
- 项目类别:青年科学基金项目
- 资助金额:30万元
- 批准年份:2023
- 负责人:王亮
- 依托单位:
磁树脂-超滤耦合净水工艺中不可逆有机物膜污染的减缓机制研究
- 批准号:51478314
- 项目类别:面上项目
- 资助金额:90.0万元
- 批准年份:2014
- 负责人:王亮
- 依托单位:
利用压力响应膜的变孔特性减轻MBR膜污染的机理研究
- 批准号:51108315
- 项目类别:青年科学基金项目
- 资助金额:26.0万元
- 批准年份:2011
- 负责人:王亮
- 依托单位:
国内基金
海外基金
