Author
Craig S. Turchi
Bio: Craig S. Turchi is an academic researcher from North Carolina State University. The author has contributed to research in topics: Photocatalysis & Reaction rate. The author has an hindex of 4, co-authored 4 publications receiving 2332 citations.
Papers
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TL;DR: In this article, it is proposed that the hydroxyl radical, OH·, is the primary oxidant in the photocatalytic system and four possible mechanisms are suggested, all based on OH· attack of the organic reactant.
1,929 citations
TL;DR: In this paper, near UV-illuminated slurries of titanium dioxide were used to study the photocatalyzed degradation kinetics of benzene and perchloroethylene (PCE) as water contaminants.
267 citations
130 citations
TL;DR: In this paper, current rate equations for photocatalyzed simultaneous destruction of multiple oxidizable organic contaminants and simplified convective transport equations appropriate to photoreactor design under various degrees of fluid mixing and simultaneous reaction contributions by heterogeneous as well as homogeneous reactions are presented.
Abstract: Heterogeneous photocatalysis is the third and newest of an emerging series of photolytic technologies for water treatment and purification. The earlier examples of ultraviolet ozonation and ultraviolet peroxidation involved direct photoactivation of the contaminant and/or dissolved oxidant and are dominated by solution phase chemistry. Photocatalysis, in contrast, involves photoactivation of the heterogeneous catalyst (an example of indirect photochemical processes) and is dominated by reaction events initiated at the catalyst surface. This paper summarizes (1) current rate equations for photocatalyzed simultaneous destruction of multiple oxidizable organic contaminants and (2) simplified convective transport equations appropriate to photoreactor design under various degrees of fluid mixing and simultaneous reaction contributions by heterogeneous (photocatalyzed) as well as homogeneous reactions.
105 citations
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TL;DR: In this paper, photo-induced superhydrophilicity was used on the surface of a wide-band gap semiconductor like titanium dioxide (TiO 2 ) for photocatalytic activity towards environmentally hazardous compounds.
4,241 citations
TL;DR: An overview of the field of semiconductor photocatalysis can be found in this paper, where a brief examination of its roots, achievements and possible future is presented, and the semiconductor titanium dioxide (TiO 2 ) features predominantly in past and present work.
Abstract: The interest in heterogeneous photocatalysis is intense and increasing, as shown by the number of publications on this theme which regularly appear in this journal, and the fact that over 2000 papers have been published on this topic since 1981. This article is an overview of the field of semiconductor photocatalysis : a brief examination of its roots, achievements and possible future. The semiconductor titanium dioxide (TiO 2 ) features predominantly in past and present work on semiconductor photocatalysis; as a result, in the most of the examples selected in this overview to illustrate various points the semiconductor is TiO 2 .
3,245 citations
TL;DR: In this article, the authors reviewed the use of sunlight to produce the OH radicals by TiO2 photocatalysis and photo-Fenton process and summarized most of the research carried out related to solar photocatalytic degradation of water contaminants and how it could significantly contribute to the treatment of persistent toxic compounds.
2,541 citations
TL;DR: In this article, it is proposed that the hydroxyl radical, OH·, is the primary oxidant in the photocatalytic system and four possible mechanisms are suggested, all based on OH· attack of the organic reactant.
1,929 citations
1,258 citations