化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2010年
2期
235-239
,共5页
李娟%李慧%邓峰%龙振国%史载锋
李娟%李慧%鄧峰%龍振國%史載鋒
리연%리혜%산봉%룡진국%사재봉
自蔓燃%TiO_2%燃烧剂%光催化
自蔓燃%TiO_2%燃燒劑%光催化
자만연%TiO_2%연소제%광최화
Auto-igniting,TiO_2%incendiary agent%photocatalyst.
To study the effect ot different incendiary agent loading on photocatalytic activity of TiO_2,TiO_2 powders were prepared with sol-gel auto-igniting synthesis(SAS) method,while tetra-n-butyl titanate and TiCl_4 were used as precursor separately.The structure of TiO_2 was characterized with XRD and SEM,and photocatalytic activity examined with degradation of methylene blue (MB).Results indicated that TiO_2 powders shows as excellent loose and multi-hole material prepared with SAS.With tetra-n-butyl fitanate and TiCl_4 as precursor,the optimal ratio of n(Ti):n(citric acid):n(NH_4NO_3)are 1:1:2 and 1:3:5,the according particle sizes are 0.1μm and 20nm,degradation rate constants of MB increase 60% and 100% compared with normal TiO_2 powder prepared without SAS method.
