Analysis of the formation process and performance of magnetic Fe3O4@Poly(4-vinylpyridine) absorbent prepared by in-situ synthesis

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2018,（6）
• 页码范围: 999-1007
• 页数: 9页
• 语种: 英文

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.