摘要
利用溶胶-凝胶法制备V5,+Ag+共掺杂的纳米TiO2,讨论其对甲基橙的降解作用。研究表明:催化剂的最佳煅烧温度为550℃;掺杂摩尔分数x(V5+)=0.03%、x(Ag+)=0.06%的纳米TiO2对甲基橙降解效果最佳;该催化剂对甲基橙的降解率随时间的延长和投入量的增加呈线性增长,后逐渐达到最大值;pH值的减小对光催化降解甲基橙有明显的促进作用。
To be the best degradation efficiency of methyl orange, a sol-gel method to prepare V^5＋ , Ag^＋co-doped nanocrystalline TiO2 has been established. The results show that the best photocatalytic calcining temperature is 550℃. The results indicate that TiO2 co-doped with V^5＋ 0.03% and Ag^＋ 0.06% ion moore fraction has the best degradation efficiency of methyl orange. Experiments find the degradation ratio of methyl orange is linearly increasing with time, and the amount of TiO2, and gradually reaches its maximum value; pH decreased in favor of the degradation ration of methyl orange.
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2009年第4期372-375,共4页
Journal of University of Jinan(Science and Technology)
基金
山东省自然科学基金(Y2006F53)
济南大学博士基金(B0514)
