非金属元素掺杂及三维花状多级结构对介孔TiO_2可见光催化性能的促进作用  

Promoting Effect of Nonmetal Ion Doping and Hierarchically 3D Dendrimeric Architecture for Visible-light-active Mesoporous TiO_2 Photocatalyst

作　　者：张春磊[1] 黄丹娅 孙明慧[1] 欧阳逸挺 王超[1] 李小云[2] 陈丽华[1] 苏宝连[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,生命复合材料实验室,武汉430070 [2]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《高等学校化学学报》2017年第3期471-478,共8页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21301133)资助~~

摘　　要：分别以尿素和葡萄糖为氮源和碳源,在温和条件下合成了具有三维花状多级结构的氮/碳掺杂二氧化钛.研究了非金属元素掺杂及三维花状多级结构对介孔TiO_2可见光催化性能的促进作用,结果表明,二者在增强TiO_2在可见光区域的吸收和提高TiO_2材料的光催化活性方面起到了协同促进的作用.This study aimed at getting insight into the promoting effect of nonmetal ion（ N and C） doping and hierarchically 3D dendrimeric architecture on mesoporous TiO2 based photocatalysts for efficient visible light activated photocatalysis. A comparison of the photocatalytic efficiencies of bare and nonmetal ion doped meso- porous TiO2 with/without-hierarchically 3D dendrimeric architectures was studied. The resultant photocatalytic performance of TiO2 based samples was improved greatly by nonmetal doping treatment. Meanwhile, the meso- porous TiO2 based materials with hierarchically 3D dendrimeric architecture present superior photocatalytic activity compared to the one without hierarchical structure.

关 键 词：二氧化钛 三维花状多级结构 非金属元素掺杂 可见光催化剂 

分 类 号：O643[理学—物理化学] O611[理学—化学]