影像科学与光化学2012，Vol.30Issue(1)：60-70,11.
铕掺杂TiO2的制备及其可见光光催化性能研究
Preparation and Photocatalytic Properties of Eu-Doped TiO2 under Visible Light Irradiation
摘要
Abstract
Eu-doped TiO2 nano-particles had been prepared by sol-gel method and characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and UV-visible diffuse reflectance spectra (UV-Vis DRS). The results showed that the band gap of Eu-TiO2 was narrower than that of TiO2. Eu-TiO2 had photocatalytic activity. The effect of preparation conditions of orgaric compounds on the degradation of rhodamine B(RhB) was studied. The optimal conditions were pH 3, nEu/nTi= 0.05% and calcination temperature 500 ℃. The degradation of rhodamine B (RhB) and salicylic acid (SA) under visible light irradiation were used as testing reactions to analyze the activity of Eu-TiO2 with different loadings. The results showed that RhB and SA were effectively degraded and mineralized, and the degradation reaction was predominated by the hydroxyl radical (·OH).关键词
铕(Eu)掺杂/晶格畸变/光催化Key words
Eu-doped/ lattice expansion/ photocatalysis分类
化学化工引用本文复制引用
郑云,顾彦,汪淑廉,杨静,兰天龙,黄应平,张爱清..铕掺杂TiO2的制备及其可见光光催化性能研究[J].影像科学与光化学,2012,30(1):60-70,11.基金项目
国家自然科学基金(20877048,21177072) （20877048,21177072）
湖北省创新群体(2009CDA020)及催化材料科学湖北省暨国家民委-教育部共建重点实验室开放基金(CHCL10007). （2009CDA020）
