Amino modified nanofibers anchored to Prussian blue nanoparticles selectively remove Cs^(+)from water

作     者：Shanshan Feng Jingshuai Gao Shouzhu Li Xun Cao Jie Ni Xiuli Yue Wei Zheng Yuyao Li Xueqi Hu Yao Zhang Sheng Feng Shanshan Feng;Jingshuai Gao;Shouzhu Li;Xun Cao;Jie Ni;Xiuli Yue;Wei Zheng;Yuyao Li;Xueqi Hu;Yao Zhang;Sheng Feng

作者机构：School of Environmental and Safety EngineeringChangzhou UniversityChangzhou 213164China Jiangsu Petrochemical Safety and Environmental Protection Engineering Research CenterChangzhou 213164China Laboratory of Nanofiber Membrane Materials and DevicesXinjiang Institute of TechnologyXinjiang 843100China State Key Laboratory of Urban Water Resources and EnvironmentSchool of Environmental EngineeringHarbin Institute of TechnologyHarbin 150001China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2024年第146卷第12期

页      面：39-54页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the College Students Extracur-ricular Innovation and Entrepreneurship Fund Project of Changzhou University(No.ZMF21020079) the Natural Sci-ence Fund for Colleges and Universities in Jiangsu Province(No.18KJB610001) the Natural Science Foundation of Jiangsu Province(No.BK20180964) the Science and Technology Project of Changzhou City(No.CJ20210119) the Natural Science Foun-dation of China(No.22075032) the National Key Research and Development Program(No.2021YFC3001104) the Natural Sci-ence Foundation of Xinjiang Uygur Autonomous Region(Nos.2020D01A49,2020D01B25 and 2020D01B26) 

主　　题：Electrostatic spinning Nanofibers Separation Prussian blue Radionuclide 

摘      要：To improve the selective separation performance of silica nanofibers(SiO_(2)NFs)for cesium ions(Cs+)and overcome the defects of Prussian blue nanoparticles(PB NPs),PB/SiO_(2)-NH_(2)NFs were prepared to remove Cs^(+)from *** them,3-aminopropyltriethoxysilane(APTES)underwent an alkylation reaction with SiO_(2),resulting in the formation of a dense Si-O-Si network structure that decorated the surface of SiO_(2)***,the amino functional groups in APTES combined with Fe3+and then reacted with Fe2+to form PB NPs,which anchored firmly on the aminoated SiO_(2)NFs *** our experiment,the maxi-mumadsorption capacity of PB/SiO_(2)-NH_(2)NFs was 111.38 mg/g,which was 31.5mg/g higher than that of SiO_(2)*** the same time,after the fifth cycle,the removal rate of Cs^(+)by PB/SiO_(2)-NH_(2)NFs adsorbent was 75.36%±3.69%.In addition,the adsorption isotherms and adsorption kinetics of PB/SiO_(2)-NH_(2)NFs were combined with the Freundlich model and the quasi-two-stage fitting model,*** mechanism analysis showed that the bond between PB/SiO_(2)-NH_(2)NFs and Cs^(+)was mainly a synergistic action of ion exchange,electrostatic adsorption and membrane separation.