摘要
采用溶胶 -凝胶 -浸渍法制备了掺杂 Fe3+、NH+4 、SO2 - 4的 Ti O2 光催化剂粉体 ,并用XRD、IR、UV-Vis等方法对其结构进行了表征。结果表明 ,以 Ti O2 干凝胶为母体 ,依次浸渍Fe3+、NH+4 、SO2 - 4的光催化剂粉体 Fe3+/NH+4 /SO2 - 4/Ti O2 (浸 )中锐钛矿相近 1 0 0 % ,晶粒粒径分布均匀 ,最小粒径为 4nm;与纯 Ti O2 相比 ,紫外光谱响应红移 1 5nm。以直接耐晒兰为模型反应物 ,评价了掺杂半导体 Ti O2 的光催化降解性能。
In this paper, multi TiO 2 photocatalyst powder doped with Fe 3+ ,NH + 4,SO 2- 4was prepared by sol gel immersion method,whose structure was characterized using XRD,IR,UV Vis means.The results indicated that with TiO 2 dry gel as the mother doped with Fe 3+ ,NH 4 +, SO 2- 4in turn,anatase accounted for 100% of Fe 3+ /NH + 4/SO 2- 4/TiO 2 with even distribution of particle sizes,and the minimal crystal diameter being 4 nm, and that as compared to TiO 2,the ultraviolet spectrum responding drift was 15 nm.The photocatalytic degradation properties were also assessed with the direct fast blue as the model reactant.
出处
《西安理工大学学报》
CAS
2002年第4期327-331,共5页
Journal of Xi'an University of Technology
基金
陕西省教育厅专项科研基金资助项目 (0 0 JK2 0 8)
