GO@FUM纳米复合正渗透膜的制备及性能研究  

Study on Preparation and Properties of the GO@FUM Nanocomposite Forward Osmosis Membrane

作　　者：崔琪[1] 王磊[1] 贺苗露 张哲 王旭东[1] CUI Qi;WANG Lei;HE Miaolu;ZHANG Zhe;WANG Xudong(School of Environment and Municipal Engineering,Xi’an University of Architecture and Technology,Research Institute of Membrane Separation Technology of Shaanxi Province,Key Laboratory of Membrane Separation of Shaanxi Province,Key Laboratory of Northwest Water Resources,Environmental and Ecology,Ministry of Education,Key Laboratory of Environmental Engineering of Shaanxi Province,Xi'an 710055,China)

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西省膜分离技术研究院,陕西省膜分离重点实验室,西北水资源与环境生态教育部重点实验室,陕西省环境工程重点实验室,陕西西安710055

出　　处：《水处理技术》2021年第6期39-44,48,共7页Technology of Water Treatment

基　　金：陕西省重点科技创新团队计划(2017KCT-19-01);陕西省技术创新引导专项(2018HJCG-18);陕西省重点产业链(群)项目(2017ZDCXL-GY-07-02)。

摘　　要：通过界面聚合的方式,将氧化石墨烯(GO)改性的锆基金属有机骨架(FUM)材料掺杂到纳米复合正渗透膜的聚酰胺(PA)中,制备了一种新型的GO@FUM纳米复合正渗透膜,对其进行了分析表征,测试了其渗透和抗污染性能。结果表明,随着GO@FUM纳米材料添加量的增加,膜的粗糙度、孔隙率、亲水性均显著提高。当添加质量分数为0.04%时性能为佳:FO模式下,纯水通量相比未改性的膜提升约35%,反向盐通量下降约49%,且JS/JV最低,表现出更高的选择性;在处理以BSA和SA为代表的有机污染物方面,GO@FUM纳米复合正渗透膜表现出更强的抗污染性能。By interfacial polymerization, graphene oxide(GO) modified zirconium-based metal-organic framework(FUM) material was doped into the polyamide(PA) of the nanocomposite forward osmosis membrane to prepare a new type of GO@FUM nanocomposite forward osmosis membrane.The nanocomposite forward osmosis membrane was characterized by scanning electron microscope(SEM), X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), atomic force microscope(AFM) and so on. Then the permeability and antifouling properties were measured by forward osmosis system. The results showed that the roughness, porosity and hydrophilicity of the membrane were improved obviously with the increase of GO@FUM nano material dosage. When the addition amount of GO@FUM was 0.04%, the performance of the membrane was the best. In FO mode, compared with the unmodified membrane, the water flux was increased by about 35%, and the reverse salt flux decreased by about 49%,which showed the higher selectivity. In addition, in the treatment of organic pollutants such as BSA and SA, the GO@FUM nanocomposite forward osmosis membrane showed stronger antifouling properties.

关 键 词：正渗透 纳米复合膜 氧化石墨烯@锆基金属有机骨架 氧化石墨烯 

分 类 号：TQ028.8[化学工程]