Photocatalytic degradation of phenol using TiO<inf>2</inf> nanocrystals supported on activated carbon

Edward Carpio, Patricia Zúñiga, Silvia Ponce, José Solis, Juan Rodriguez, Walter Estrada

Research output: Contribution to conferencePaper (Contribution to a conference)

120 Scopus citations

Abstract

Titanium oxide was deposited on activated carbon (AC) in two forms, as powder and as a pellet. This oxide was obtained using sol-gel process based on titanium isopropoxide and isopropyl alcohol. Nanocrystalline TiO2 anatase phase on activated carbon was obtained using an adequated thermal treatment of 325°C for 5 h considering the thermal instability of the AC. The resulting material was characterized by spectroscopic X-ray fluorescence, scanning electron microscopy with energy dispersive X-ray microanalyses (EDX), and Brunauer-Emmett-Teller (BET) surface area measurements. Activity measurements performed under UV lamp and solar irradiation have shown good results for the photo degradation of phenol in aqueous solution. For solar applications, a polyethylene terephtalate bottle containing the photocatalyts was filled up with the contaminated water and placed a few hours under the solar radiation for a couple of sunny days. The results indicate that 20 ppm of phenol can be removed by using this method. © 2004 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages293-298
Number of pages6
DOIs
StatePublished - 16 Mar 2005
Externally publishedYes
EventJournal of Molecular Catalysis A: Chemical -
Duration: 16 Mar 2005 → …

Conference

ConferenceJournal of Molecular Catalysis A: Chemical
Period16/03/05 → …

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    Carpio, E., Zúñiga, P., Ponce, S., Solis, J., Rodriguez, J., & Estrada, W. (2005). Photocatalytic degradation of phenol using TiO<inf>2</inf> nanocrystals supported on activated carbon. 293-298. Paper presented at Journal of Molecular Catalysis A: Chemical, . https://doi.org/10.1016/j.molcata.2004.09.066