氧化钛和铁酸锌复合薄膜的制备和表征  

Preparation and properties of ZnFe_2O_4 doped TiO_2 thin films

作　　者：郭志红[1] 蒋武锋[2] 凌云汉[3] 白新德[3] 

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018 [2]河北理工大学冶金与能源学院,河北唐山063009 [3]清华大学材料系,北京100084

出　　处：《河北科技大学学报》2008年第3期227-230,共4页Journal of Hebei University of Science and Technology

基　　金：国家自然科学基金资助项目(50371044)

摘　　要：为了提高氧化钛对可见光的响应,改善其在阴极防护方面的应用,利用液相沉积法在含Zn2+溶液中原位水热转化相结合的新方法,在不锈钢和玻璃表面合成了纳米氧化钛和铁酸锌复合薄膜。通过X射线粉末衍射(XRD)、扫描电镜(SEM)、场发射扫描电镜(FE-SEM)对薄膜的物相和表面形貌进行表征,通过可见-紫外光光度计(UV-vis)测定其光响应范围已拓展到可见光区,用IM6e电化学工作站测定其光生电位负于不锈钢的自腐蚀电位。To improve its visible response capability and performance in cathode protection, ZnFe2O4 doped TiO2 thin films have been successfully formed on glass and stainless steel substrates by liquid phase deposition （LPD） and in-situ hydrothermal conversion and crystallization in the Zn^2＋ -contained environment afterwards. X-ray diffraction, electron microscopy （SEM） and field-emission scanning electron microscopy （FE-SEM）are used to study the crystal phases and shapes of layers. UV-visible spectrophotometry （UV-vis） indicates the aborting edge is shifted to visible light scale. The polarization curve shows the photovoltaic potential of ZnFe2O4 doped TiO2 is more negative than the corrosion potential of bare stainless steel.

关 键 词：液相沉积 水热法 铁酸锌 薄膜 

分 类 号：TQ046.4[化学工程]