PDF全文下载:20160100047
唐婧, 张冲宇, 陈克正, 万家齐*
(青岛科技大学 材料科学与工程学院,山东 青岛 266042)
摘要: 采用溶剂热法制备了四氧化三铁微球,通过多巴胺自聚合在其表面形成了均匀的聚多巴胺包覆层,利用聚多巴胺对银离子的吸附和还原作用制备了载银四氧化三铁微球。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对产物的结构与形貌进行了表征分析。以甲基橙与硼氢化钠的还原反应为模型,研究了载银磁性微球的催化性能。
关键词: 核壳结构;载银磁性微球;催化还原;甲基橙
中图分类号: O 482.5 文献标志码: A
Silver Loaded Fe3O4 Microspheres as Catalyst for Methyl Orange Degradation
TANG Jing, ZHANG Chongyu, CHEN Kezheng, WAN Jiaqi
(College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: Fe3O4 microspheres were prepared via a simple solvothermal method. A uniform polydopamine (PDA) layer was deposited on the surface of Fe3O4 NPs by selfpolymerization of dopamine, where PDA acts as both the reducing agent and template for the formation of Ag nanoparticles. The structure and morphology of the asprepared products were characterized by XRD, SEM and TEM. The reduction reaction between methyl orange and NaBH4 was chosen as a model reaction to investigate the catalytic activity the asprepared silver loaded magnetic microspheres.
Key words: coreshell structure; silver loaded magnetic microspheres; catalytic reduction; methyl orange
收稿日期: 20141029
基金项目: 国家自然科学基金项目(51472133);山东省自然科学基金项目(ZR2013EMM006);高等学校博士学科点专项科研基金项目(20113719110001).
作者简介: 唐婧(1986—),女,硕士研究生. *通信联系人.
文章编号: 16726987(2016)01004704; DOI: 10.16351/j.16726987.2016.01.010