Synthesis, characterization and photocatalytic activity of Co2+-doped titania

摘要：

Photocatalyst of Co2+-doped titania was simply prepared, and the photocatalytic activity was tested under UV irradiation for methyl orange degradation. The influence of doping quantity, calcination temperature, calcination time and quantity of catalyst was investigated for photocatalytic efficiency of the photocatalyst. The sample was characterized by UV diffuse reflectance spectra (UV/DRS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and IR. The results showed that the photocatalytic activity Co2+-doped TiO2 which calcined at 200 ℃for 5 h is high, and which diameter is about 4-7 run presents anatase phase. The sample absorption band of UV/DRS moves to visible region and reaches 580 nm. This kind of catalyst is also effective for degradation other organic dyes and beer wastewater.

关键词： sol-gel titanium ozide photocatalytic degradation visible light

作者: DUAN Su Hua ZHANG Kunfeng LI Daorong YIN Qiya HU Changwen

作者单位: School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou,450001,China China Department of Chemistry,Beijing Institute of Technology,Beijing,100081,China

会议类型: 国际会议

会议名称: The 8th China International Nanoscience and Technology Symposium(2009第八届中国国际纳米科技湘潭研讨会Cinsts09)

会议地点: 湖南湘潭

会议语种:英文

页码: 1-5

在线出版日期: 2009-10-23（万方平台首次上网日期，不代表论文的发表时间）