Effect of Metal Ions (Ag, Co, Ni, and Pd) on the Visible Light Degradation of Rhodamine B by Carbon-Covered Alumina-Supported TiO2 in Aqueous Solutions
Data(s) |
2013
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Resumo |
Metal-ion (Ag, Co, Ni, and Pd) doped TiO2 nanocatalysts were successfully embedded on carbon-covered alumina supports. The CCA-embedded catalysts were crystalline and had a high surface area compared to the free metal-ion doped titania nanocatalysts while they still retained the anatase phase of the core TiO2. These catalysts were photocatalytically active under solar light irradiation. Rhodamine B was used as a model pollutant and the reactivity followed a pseudo-first-order reaction kinetics. The reaction rate of the CCA-supported catalysts was Pd > Ag > Co > Ni. Among the ratios of the CCA:catalyst used, it was found that the 1:1 ratio had the fastest reaction rate, followed by the 1:2 ratio, while the 2:1 ratio exhibited the lowest reaction rate. The CCA/metal-ion doped titania were found to have photocatalytic activities comparable with those of CCA-supported titania. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/46068/1/ind_eng_che_res_52-5_1783_2013.pdf Mahlambi, Mphilisi M and Mishra, Ajay K and Mishra, Shivani B and Krause, Rui W and Mamba, Bhekie B and Raichur, Ashok M (2013) Effect of Metal Ions (Ag, Co, Ni, and Pd) on the Visible Light Degradation of Rhodamine B by Carbon-Covered Alumina-Supported TiO2 in Aqueous Solutions. In: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 52 (5). pp. 1783-1794. |
Publicador |
AMER CHEMICAL SOC |
Relação |
http://dx.doi.org/10.1021/ie3025505 http://eprints.iisc.ernet.in/46068/ |
Palavras-Chave | #Materials Engineering (formerly Metallurgy) |
Tipo |
Journal Article PeerReviewed |