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Springer Verlag, Journal of Sol-Gel Science and Technology, 3(71), p. 557-570

DOI: 10.1007/s10971-014-3405-6

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An ambient temperature aqueous sol-gel processing of efficient nanocrystalline doped TiO2-based photocatalysts for the degradation of organic pollutants

Journal article published in 2014 by Charline M. Malengreaux, Sigrid Douven, Dirk Poelman ORCID, Benoit Heinrichs, John R. Bartlett
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

An environmentally-friendly aqueous sol-gel process for producing undoped and Cu2+, Ni2+, Zn2+ or Pb2+-doped TiO2 photocatalysts exhibiting a remarkably high photocatalytic activity without requiring any calcination step has been developed. The physicochemical properties of the catalysts were characterized by ICP-AES, XRD, UV-Vis spectroscopy and nitrogen adsorption-desorption. It has been found that the catalysts are composed of nanocrystallites of anatase with a size of 6-7 nm and a specific surface area varying from 184 to 275 m(2) g(-1). A screening of the photocatalytic activity of the undoped and doped photocatalysts has been performed by evaluating the degradation of 4-nitrophenol under artificial light (330 nm