Synthesis and Photocatalytic Application of Nitrogen Doped TiO2 Photocatalysts Sensitized by Metallo Co, Ni-porphyrins

摘要：

　　In this paper,four kinds of metalloporphyrins (CoTPP,CoTHPP,NiTPP and NiTHPP) were adsorbed on the surface of nitrogen doped anatase TiO2 samples (N-TiO2) produced by deposition-calcination method to prepare MTPP/N-TiO2 and MHTPP/N-TiO2 composite photocatalysts.The XRD and TEM results showed that the crystal structures and morphology of N-TiO2 were not affected by metalloporphyrin on its surface.According to the DRS,spectoral response of the composite photocatalysts sensitized by metalloporphyrin can be extended to the visible light region.The photocatalytic degradation experiments showed that the CoTPP/N-TiO2 and CoTHPP/N-TiO2 composite exhibited higher photocatalytic degradation efficiency than N-TiO2 and N-TiO2 sensitized by NiTPP and NiTHPP under visible light irradiation.The photocatalytie degradations of MB over four composite catalysts were all demonstrated to follow the first-order kinetic mode.

关键词： Metalloporphyrin TiO2 nitrogen doping photocatalytic methylene blue

作者: Niu Jinfen Yoa Binghua Peng Chao Yang Rong

作者单位: School of Science, Xian University of Technology, Xian 710048, China

会议类型: 国际会议

会议名称: 2012 Postdoctoral Symposium of China on Materials Science & Engineering -- Advanced Materials for Sustainable Development (2012 年中国博士后材料科学与工程学术论坛--先进材料与可持续发展)

会议地点: 上海

会议语种:英文

页码: 127-127

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）