中文摘要：

通过简单的溶胶一凝胶方法合成了N掺杂的介孔TiO2．用X-射线粉末衍射（XRD）、扫描电子显微镜（SEM）、Nz吸附、X射线光电子能谱（XPS）、紫外-可见（UV—vis）漫反射吸收光谱等手段进行了表征．X-射线粉末衍射表明，焙烧前的产物为无定形TiO2，焙烧后的产物为TiO。的锐钛矿．N2吸附一脱附等温线表明，N-20的BET表面积为76m^2／g，孔尺寸大约为10nm，X射线光电子能谱（XPS）辅助证明有N掺入了TiO2中．紫外可见漫反射光谱（UV—vis）表明，N掺杂的介孔TiO2的吸收带边位置发生红移，吸光范围向可见光区拓宽．

英文摘要：

N-doped mesoporous TiO2 was synthesized through simple sol-gel method, which was characterized by powder X-ray diffraction （XRD）, field emission scanning electrical microscope （SEM）, N2 adsorption, X-ray photoelectron spectrum （XPS）, UV-vis diffuse re- flectance spectra. Powder X-ray diffractions showed that uncalcined TiO2 was amorphous and the calcined TiO2 was anatase. N2 adsorption proved that BET surface area was about 76 m2/g and the average pore size distribution was about 10 nm. XPS proved that N had doped in TiO2, UV-vis diffuse reflectance spectrum proved that the red shift of the absorption edge of the N- doped mesoporous TiO2 and the absorption range exploited to visible light region had occurred.