PVDF催化膜的制备及去除水中盐酸四环素性能研究  

Preparation of PVDF catalytic membrane and its removal performance of tetracycline hydrochloride in water

作　　者：陈禄荣 智超 刘贝贝 董亮亮 白云翔 张春芳 Chen Lurong;Zhi Chao;Liu Beibei;Dong Liangliang;Bai Yunxiang;Zhang Chunfang(Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Materials Engineering,Jiangnan University,Wuxi 214122)

机构地区：[1]江南大学化学与材料工程学院,合成与生物胶体教育部重点实验室,无锡214122

出　　处：《化工新型材料》2024年第6期195-200,共6页New Chemical Materials

基　　金：国家自然科学基金面上项目(22278177)。

摘　　要：将具有芬顿催化活性的普鲁士蓝类似物Fe-Co PBA负载到聚偏氟乙烯(PVDF)膜内,采用浸没沉淀相转化法制备了一种新型PVDF催化膜,用于去除水中盐酸四环素污染物。结果表明:负载Fe-Co PBA纳米粒子既能提高PVDF膜表面亲水性、孔隙率和水通量,又能赋予PVDF膜催化活性;当Fe-Co PBA负载量为10%(质量分数)时,PVDF催化膜的纯水通量达到418.47L/(m^(2)·h),与纯PVDF膜相比提高了3.24倍。PVDF催化膜具有优异的抗生素去除性能和催化稳定性,当H_(2)O_(2)浓度为400mmol/L时,基于芬顿反应的PVDF催化膜对质量浓度20mg/L盐酸四环素的去除率达到90%;重复使用10次后,PVDF催化膜对盐酸四环素去除率仍保持在85%以上。A novel polyvinylidene Fluoride(PVDF)catalytic membrane was prepared by loading Fe-Co PBA,a Prussian blue analogue with Fenton's catalytic activity,into polyvinylidene fluoride(PVDF)membrane using immersion precipitation phase transformation method for the removal of tetracycline hydrochloride pollutants in water.The results showed that the loading of Fe-Co PBA nanoparticles could both improve the hydrophilicity,porosity,and water flux of PVDF membrane,and endow the catalytic activity of PVDF membrane.As the Fe-Co PBA loading was 10wt%,the pure water flux of the PVDF catalytic membrane reached 418.47L/(m^(2)·h),which was 3.24 times higher than that of the pure PVDF membrane.The PVDF catalytic membrane presented outstanding antibiotic removal efficiency and catalytic stability in treating wastewater containing tetracycline hydrochloride.When the concentration of H_(2)O_(2) was 400mmol/L and the initial concentration of tetracycline hydrochloride was 20mg/L,the PVDF catalytic membrane based on the Fenton reaction presented 90% tetracycline hydrochloride removal efficiency.After ten times reuses,the removal efficiency of the catalytic membrane still remained above 85%.

关 键 词：普鲁士蓝类似物 催化膜 聚偏氟乙烯 抗生素 

分 类 号：TQ643.3[化学工程—精细化工] X703[环境科学与工程—环境工程]