由钛铁矿制备Fe_3O_4/TiO_2复合物的研究进展  

Research Progress on the Preparation of Fe_3O_4/TiO_2 Complex from Ilmenite

作　　者：王珍珍 黄栩雯 吴成杰[1] 朱妙琴[1] WANG Zhenzhen;HUANG Xuwen;WU Chengjie;ZHU Miaoqin(School o f Science and Technology,Zhejiang International Studies University,Hangzhou,Zhejiang 310012, China)

机构地区：[1]浙江外国语学院科学技术学院,杭州310012

出　　处：《中国无机分析化学》2017年第4期52-56,共5页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：归纳了从钛铁矿中分离铁和二氧化钛的方法,包括亚熔盐法、预氧化法、还原锈蚀法;其次,初步总结了目前国内外制备Fe_3O_4磁性纳米颗粒和TiO_2纳米粒子的方法。最后,对Fe_3O_4/TiO_2复合材料的制备方法包括溶胶-凝胶法、微乳液法、均匀沉淀法作了梳理。Fe_3O_4/TiO_2复合纳米材料很好地解决了单独使用TiO_2作为废水处理催化剂,在实际应用过程中易随水流失,难以回收利用的问题,具有一定的实用性。The methods for iron and titanium dioxide separation from ilmenite were summarized firstly, including sub-molten salt method, pre-oxidation method and reduction-rusting method. Secondly, preparation methods of Fe3O4 magnetic nanoparticles and TiO2 nanoparticles were discussed. Finally, preparation methods of Fe3O4/TiO2 composite particles including sol-gel method, micro emulsion method and homogeneous precipitation method were implemented. The use of Fe3O4/TIO2 composite particles can solve the recycling problem of the catalyst TiO2 particles in waste-water treatment. Composite particles are easy to be recycled and, therefore, they presented a possible solution for a practical problem.

关 键 词：光催化活性 磁性纳米粒子 Fe3O4/TiO2复合粒子 钛铁矿 

分 类 号：O653[理学—分析化学]