Effects of Annealing Atmosphere on the Structures and Photocatalytic Properties of Gd-Doped TiO2/CF Photocatalysts
In the present investigations,sol-gel method was utilized to prepare Gd-doped TiO2/CF precursor and then the Gd-doped TiO2 precursor was loaded on the PAN-carbon fiber (PAN-CF) substrates via the dipcoating process. Superheated steam,nitrogen and air atmosphere were chosen for the annealing treatment of the material,respectively. Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) were used to characterize the surface morphology of the composites and crystal phase of Gddoped TiO2. The photocatalytic properties of the Gddoped TiO2/CF annealed under different atmosphere were investigated by degrading acid orange II under UV irradiation. The results indicate that the annealing atmosphere has significantly effects on the structures and photocatalytic activity of the thin films. The Gd-TiO2/CF annealed under superheated steam atmosphere exhibits the highest photocatalytic activity. The XRD analysis suggests that all of the samples were in the anatase form after calcinations at 550℃.
Gd-doping Photocatalysis Annealing ambient Acid orange Ⅱ Sol-Gel
Bangyong Pang Yaofeng Zhu Tianbing Yang Yaqin Fu Hao Chen Liyuan Zhang Jin Wang
Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education,Zhej Graduate School of Science and Technology,Shinshu University,3-15-1 Tokida,Ueda 386-8576,Japan
国际会议
杭州
英文
298-301
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）