聚丙烯腈/多金属复合氧化铁可见光催化光解水的性能  

Photocatalysis Studies of Polyacrylonitrile/Polymetallic-Iron Oxides for Water Splitting under Visible Light

作　　者：陆强[1] 刘引烽[1] 李煜光[1] 杨呈夏[1] 冉明浩[1] 杨红[1] 顾莹[1] 夏义本[1] 

机构地区：[1]上海大学材料科学与工程学院,上海201800

出　　处：《上海大学学报（自然科学版）》2012年第3期317-322,共6页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50572061)

摘　　要：采用共沉淀法和浸渍法制备聚丙烯腈(polyacrylonitrile,PAN)/多金属氧化铁复合光解水催化剂.傅里叶变换红外光谱分析仪(Fourier transform infrared spectroscopy,FTIR)表征表明,热处理后的聚丙烯腈发生了热环化反应,其功能基团与金属离子间具有较强的相互作用.X射线衍射(X-ray diffraction,XRD)表征表明,催化体系中的氧化铁主要为立方晶系,铜、镍及钯均以氧化物形态存在.在光催化反应中,催化剂表现出了较好的催化效果,最高催化产氢速率达到714.3μmol/(g·h).Polyacrylonitrile （PAN）/polymetallic-iron oxides used as photocatalysts for water splitting were prepared by copreeipitation and impregnation methods. Fourier transform infrared spectroscopy （FTIR） showed that the cyclic structures were formed in the PAN chains after heat treatment. The functional groups of PAN showed strong interactions with metal ions. According to X-ray diffraction （XRD） characterizations, iron oxides were Fe3O4 cubic crystalline in the photocatalysts, and other metal ions existed as their relative oxides. Photoeatalysis for water splitting into H2 presented efficient activity and the optimum rate reached 714.3 μmol/（g · h）.

关 键 词：聚丙烯腈 氧化铁 多金属 可见光催化 光解水 

分 类 号：O643.36[理学—物理化学]