Analysis of the formation process and performance of magnetic Fe_3O_4@Poly(4-vinylpyridine) absorbent prepared by in-situ synthesis

作     者：Birong Zeng Li Yang Wei Zheng Jihong Zhu Xiaojun Ma Xinyu Liu Conghui Yuan Yiting Xu Lizong Dai 

作者机构：College of Materials Fujian Provincial Key Laboratory of Fire Retardant Materials Xiamen University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2018年第34卷第6期

页      面：999-1007页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51573150,51373142 and 51673161) the Scientific and Technological Innovation Platform of Fujian Province(No.2014H2006) the College Student Innovation and Entrepreneurship Training Program(No.2016X0656) the National Science Technology Program(No.2014BAF08B03) 

主　　题：Magnetic nanospheres ln-situ synthesis Absorbent Formation mechanism Porous 

摘      要：The morphology evolution of the mesoporous magnetic composite nanospheres Fe3O4@Poly（4- vinylpyridine） during the formation process and its absorption property of Congo red were studied in this study. A simple solvothermal method was applied for the fabrication of Fe3O4@Poly（4-vinylpyridine） composites with regular structure and uniform size distribution in the presence of 4-vinylpyridine as the structure inducer. The morphology, structure and magnetism performance were characterized and the adsorption model and mechanism were discussed. The results showed that the Fe3O4@Poly（4- vinylpyridine） composites were efficient adsorbent for the removal of Congo red from water and it could be reused by a magnetic separation. The adsorption isotherm of Congo red on Fe3O4@Poly（4- vinylpyridine） composites was fitted well with the Langmuir adsorption model.