Page 88 - 《精细化工》2023年第12期
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第 40 卷第 12 期                            精   细   化   工                                 Vol.40, No.12
             2 023 年 12 月                            FINE CHEMICALS                                 Dec.  2023


              功能材料
               仿鱼鳞 PDA 纳米片复合滤膜的制备及油水分离性能



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                       林姣盼 ,高军凯 ,彭慧婷 ,施   骞 ,韩   志 ,陈   妍
                 (1.  浙江海洋大学  船舶与海运学院,浙江  舟山   316022;2.  江苏大学  能源与动力工程学院,江苏  镇
                 江  212000)
                 摘要:以聚多巴胺(PDA)为原料、Mg(OH) 2 为模板剂,采用液相沉积法原位包覆 Mg(OH) 2 纳米片制备了 PDA
                 纳米片,再以疏水棉布为基底,PDA 纳米片为覆盖层制备了 PDA 纳米片复合滤膜(简称复合滤膜)。通过 SEM、
                 TEM、BET、FTIR、XPS、XRD 和接触角测量仪对复合滤膜进行了结构表征,同时测定了复合滤膜对油水混合
                 物和乳化油的分离性能、循环使用性能和抗污染性能。结果表明,PDA 纳米片的引入显著地增加了复合滤膜的
                 表面粗糙度,在自重作用下复合滤膜对油水混合物和乳化油(均以环己烷为油相)的渗透通量分别为 2866.24
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                 和 1015.13 L/(m ·h),分离效率达 99.5%,且复合滤膜在重复使用 10 次后,其对乳化油的渗透通量为
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                 798.11 L/(m ·h),分离效率达 98.1%。此外,PDA 纳米片还具有普适性,能覆盖在不同基底上进行乳化油分离,
                 具有良好的应用前景。
                 关键词:原位包覆;多功能;聚多巴胺纳米片;自重分离;功能材料
                 中图分类号:X703;TQ051.893      文献标识码:A      文章编号:1003-5214 (2023) 12-2630-11



                    Preparation and oil-water separation performance of fish scale-like
                                   PDA nanosheet composite filter membrane


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                        LIN Jiaopan , GAO Junkai , PENG Huiting , SHI Qian , HAN Zhi , CHEN Yan
                 (1. School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China; 2. School
                 of Energy and Power Engineering, Jiangsu University, Zhenjiang 212000, Jiangsu, China)
                 Abstract: Polydopamine (PDA)  nanosheets were  prepared  from in-situ liquid  phase deposition  of PDA
                 onto Mg(OH) 2 nanosheets. PDA  nanosheets composite  filter membrane (referred to as composite  filter
                 membrane)  was then synthesized  via  coating the PDA nanosheets onto  hydrophobic  cotton  cloth,
                 characterized  by SEM, TEM, BET, FTIR, XPS, XRD and contact  angle tester, and evaluated  on its
                 separation  performance for  oil-water mixture and emulsified oil,  recycling performance as well as anti-
                 pollution performance. The results showed that the introduction of PDA nanosheets significantly increased
                 the surface roughness of the composite filter membrane. The permeation fluxes of the composite filter membrane
                 for oil-water mixture and emulsified oil driving by self-gravity (both with cyclohexane as oil phase) were
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                 2866.24 and 1015.13 L/(m ·h), respectively, with separation efficiency of 99.5%. The permeation flux of
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                 the composite filter membrane, which was recycled 10 times, for emulsified oil was 798.11 L/(m ·h) and
                 the separation  efficiency  was 98.1%. In addition, PDA  nanosheets also exhibited  universality and could
                 coat onto different substrates for emulsified oil separation, showing good application prospects.
                 Key words: in-situ coating; multifunction; PDA nanosheets; self-weight separation; functional materials


                 石油化工、纺织品加工、金属冶炼、机械加工                          料广泛存在于纺织、化妆品等行业排放的废水中,
                                                [1]
            等行业生产中均会排放大量的含油废水 ,同时染                             这些废水的排放不仅影响海水质量,还对生态环境

                 收稿日期:2023-02-28;  定用日期:2023-05-23; DOI: 10.13550/j.jxhg.20230150
                 基金项目:国家自然科学基金项目(51606168);教指委高等学校能源动力类教学研究与实践项目(NDJZW2021Z-45);江苏大学高
                 级人才科研启动基金项目(21JDG048);江苏大学高等教育教改研究课题(2021JGZZ011)
                 作者简介:  林姣盼(1997—),女,硕士生,E-mail:280233958@qq.com。联系人:韩   志(1983—),男,教授,E-mail:hanzhi9999@163.com;
                 陈   妍(1981—),女,副教授,E-mail:chenyan@zjou.edu.cn。
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