Pt-Cu_2O/TiO_2复合催化剂的制备及光催化制氢活性  

Preparation and Photocatalytic Activity for Hydrogen Evolution of Pt-Cu_2O/TiO_2 Composite Photocatalysts

作　　者：涂盛辉[1] 胡亚平[1] 戴策[1] 王犇[1] 杜军[1] 

机构地区：[1]南昌大学资源环境与化工学院,南昌330031

出　　处：《材料导报》2016年第22期5-9,15,共6页Materials Reports

基　　金：国家自然科学基金(51162022)

摘　　要：采用化学沉积法制备了Cu_2O/TiO_2复合光催化剂。通过扫描电子显微镜(SEM)、能谱分析(EDS)、X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、紫外-可见漫反射光谱(DRS)表征复合催化剂的微观形貌、元素组成、结构和光学特性。以H_2PtCl_6为无机前驱体对复合材料进行Pt负载,研究了不同Cu_2O含量对制氢活性的影响及不同光源下的制氢活性。结果表明,该复合催化剂表现出较好的光催化制氢活性,当Cu_2O的含量为1%(质量分数)时,氢气的产生量最高。Cu2 O/TiO2 composite photocatalysts were prepared by chemical precipitation method.The micro-morphology,element composition,structure and optical properties of the composite catalysts were characterized by scanning electron microscopy （SEM）,energy disperse spectroscopy （EDS）,X-ray diffraction （XRD）,Fourier trans-form infrared spectroscopy （FT-IR）,UV-Vis diffuse reflectance spectroscopy （DRS）.The inorganic precursor of H2 PtCl6 was used to load Pt.The effects of the content of Cu2 O on hydrogen evolution activity under different irradia-tion were investigated.Results indicated that the composite photocatalysts have higher photocatalytic activity for hy-drogen production.When the content of Cu2 O was 1% （mass fraction）,the amount of hydrogen was the highest.

关 键 词：化学沉积法 光催化 制氢 Pt-Cu2O/TiO2 

分 类 号：O643[理学—物理化学]