物理化学学报2012，Vol.28Issue(3)：635-640,6.DOI:10.3866/PKU.WHXB201112231
Fe、N共掺杂TiO2纳米管阵列的制备及可见光光催化活性
Preparation and Visible Light Photocatalytic Activity of Fe-N Codoped TiO2 Nanotube Arrays
摘要
Abstract
Fe-N codoped TiO2 nanotube arrays were fabricated by anodization of Ti, followed by wet immersion and annealing post-treatment. The doped TiO2 nanotube array photocatalysts were characterized by field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Auger electron spectroscopy (AES). The results indicated that Fe and N dopants had almost no effect on the morphology and structure of TiO2 nanotube arrays, and that Fe and N were doped into the TiO2 lattice. UV-Vis diffuse reflectance spectra showed that the absorption band edge of Fe-N codoped TiO2 nanotube arrays exhibited a red shift compared with that of pure TiO2 nanotube arrays and Fe- or N-doped TiO2 nanotube arrays. The photocatalytic activity of Fe-N codoped TiO2 nanotube arrays was evaluated by their ability to degrade rhodamine B under visible light irradiation. The degradation rate of rhodamine B over Fe-N codoped TiO2 nanotube arrays was obviously higher than that over pure TiO2 nanotube arrays and Fe- or N-doped TiO2 nanotube arrays, which is attributed to the synergistic effect of the Fe and N codopants.关键词
Fe和N/共掺杂/TiO2纳米管阵列/罗丹明B/可见光Key words
Fe and N/Codoping/TiO2 nanotube array/Rhodamine B/Visible light分类
化学化工引用本文复制引用
吴奇,苏钰丰,孙岚,王梦晔,王莹莹,林昌健..Fe、N共掺杂TiO2纳米管阵列的制备及可见光光催化活性[J].物理化学学报,2012,28(3):635-640,6.基金项目
国家自然科学基金(51072170,21021002),福建省自然科学基金(2011J01057)和国家基础科学人才培养基金(J1030415)资助项目 （51072170,21021002）
