Indium-sensitized UV Photocatalysts made from Alkali Titanate Microfibers
Indium-alkali microfibers doped ceramic were prepared by the sol-gel process. The gels preparation samples, were heat treated at 700℃ for different length of time. The products were characterized by means of XRD, SEM-EDS and UV-Vis-DRS. The XRD showed the formation of the Na2Ti6O13 phase whose crystallinity depends on the annealing time. The band gap calculated from the UV-Vis Kubelka-Munk function shows very similar values (3.53-3.55 eV). The SEM images of the indium-alkali titanates show microfiber clumps morphologies of about 5 μm, and the EDS spectra show that In2O3 is on the NaETi6O13 surface. The results of the evaluation of the ln-NaETi6O13 semiconductors in the 2, 4-dichlorophenoxyacetic acid (2, 4-D) photodecomposition under UV light irradiation, show that the photoactivity depends on the time of heat treatment of the samples.
Indium-doped semiconductors ultraviolet light photoactivity, In2O3-alkali titanate 2, 4-Dphotodegradation
Leticia.M.Torres-Martinez Cecilia Sanchez-Trinidad Vicente Rodriguez-Gonzalez Ricardo Gomez
Universidad Autbnoma de Nuevo Leon, Facultad de Ingenieria Civil, Instituto de Ingenieria Civil,Depa Universidad Autonoma Metropolitana-I, Depto.de Quimica, Av.San Rafael Atlixco No.186, Mexico 09340,
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
651-654
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）