摘要
采用溶胶-凝胶法制备纳米二氧化钛光催化剂。通过在基材中加入金属离子,使其进入TiO2晶体中,研究以甲基橙溶液为模拟目标污染物,掺杂不同的过渡金属元素、改变焙烧温度和光照时间等对TiO2光催化活性的影响。结果表明:掺杂的过渡金属离子对TiO2颗粒的光催化性能有一定的影响,同等条件下掺杂不同过渡金属离子后TiO2颗粒的光催化效果不同,掺杂同种过渡金属离子的TiO2颗粒其焙烧温度和光照时间对催化性能也有一定的影响。
Transition metal doped nano-titanium oxide(nano-TiO2) was fabricated by adding transition metallic ionic into the initial solution for sol-gel process.The efficiency of sunlight induced photodegradation of methyl orange catalyzed by doped TiO2 were investigated by the variation of the doped metal,baking temperature and photo radiation time.It obtains that the doped transition metal certain affects the photodegradability of the TiO2,and photodegradation efficiency was dependant on doped element.Calcination temperature and irradiation time also affect the catalytic properties of TiO2 particles doped with the same transitional metal ion.
出处
《北京印刷学院学报》
2010年第2期76-78,共3页
Journal of Beijing Institute of Graphic Communication
关键词
纳米二氧化钛
掺杂
光催化
nano-titanium oxide
doped
photocatalysis
