Powder semiconductor photocatalysis in aqueous solution: An overview of kinetics-based reaction mechanisms

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56 Citations (Scopus)

Abstract

A brief, historical overview of 10 apparently different, although in some cases, upon inspection, closely related, popular proposed reaction mechanisms and their associated rate equations, is given and in which the rate expression for each mechanism is derived from basic principles, Appendix A. In Appendix B, each of the 5 main mechanisms are tested using datasets, comprising initial reaction rate vs. organic pollutant concentration, [P] and incident irradiance, ρ, data, reported previously for TiO2, where P is phenol, 4-chlorophenol and formic acid. The best of those tested, in terms of overall fit, simplicity, usefulness and versatility is the disrupted adsorption kinetic model proposed by Ollis. The usual basic assumptions made in constructing these mechanisms are reported and the main underlying concerns explored.
Original languageEnglish
Pages (from-to)66-105, Impact Factor: 2.5
Number of pages40
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume310
Early online date21 Apr 2015
DOIs
Publication statusPublished - 2015

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formic acid
Photocatalysis
Organic pollutants
Formic acid
Phenol
Powders
Phenols
Reaction rates
Inspection
Semiconductor materials
aqueous solutions
Adsorption
Kinetics
kinetics
versatility
irradiance
phenols
contaminants
inspection
reaction kinetics

Cite this

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title = "Powder semiconductor photocatalysis in aqueous solution: An overview of kinetics-based reaction mechanisms",
abstract = "A brief, historical overview of 10 apparently different, although in some cases, upon inspection, closely related, popular proposed reaction mechanisms and their associated rate equations, is given and in which the rate expression for each mechanism is derived from basic principles, Appendix A. In Appendix B, each of the 5 main mechanisms are tested using datasets, comprising initial reaction rate vs. organic pollutant concentration, [P] and incident irradiance, ρ, data, reported previously for TiO2, where P is phenol, 4-chlorophenol and formic acid. The best of those tested, in terms of overall fit, simplicity, usefulness and versatility is the disrupted adsorption kinetic model proposed by Ollis. The usual basic assumptions made in constructing these mechanisms are reported and the main underlying concerns explored.",
author = "A. Mills and C. O'Rourke and K. Moore",
year = "2015",
doi = "10.1016/j.jphotochem.2015.04.011",
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journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
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TY - JOUR

T1 - Powder semiconductor photocatalysis in aqueous solution: An overview of kinetics-based reaction mechanisms

AU - Mills, A.

AU - O'Rourke, C.

AU - Moore, K.

PY - 2015

Y1 - 2015

N2 - A brief, historical overview of 10 apparently different, although in some cases, upon inspection, closely related, popular proposed reaction mechanisms and their associated rate equations, is given and in which the rate expression for each mechanism is derived from basic principles, Appendix A. In Appendix B, each of the 5 main mechanisms are tested using datasets, comprising initial reaction rate vs. organic pollutant concentration, [P] and incident irradiance, ρ, data, reported previously for TiO2, where P is phenol, 4-chlorophenol and formic acid. The best of those tested, in terms of overall fit, simplicity, usefulness and versatility is the disrupted adsorption kinetic model proposed by Ollis. The usual basic assumptions made in constructing these mechanisms are reported and the main underlying concerns explored.

AB - A brief, historical overview of 10 apparently different, although in some cases, upon inspection, closely related, popular proposed reaction mechanisms and their associated rate equations, is given and in which the rate expression for each mechanism is derived from basic principles, Appendix A. In Appendix B, each of the 5 main mechanisms are tested using datasets, comprising initial reaction rate vs. organic pollutant concentration, [P] and incident irradiance, ρ, data, reported previously for TiO2, where P is phenol, 4-chlorophenol and formic acid. The best of those tested, in terms of overall fit, simplicity, usefulness and versatility is the disrupted adsorption kinetic model proposed by Ollis. The usual basic assumptions made in constructing these mechanisms are reported and the main underlying concerns explored.

U2 - 10.1016/j.jphotochem.2015.04.011

DO - 10.1016/j.jphotochem.2015.04.011

M3 - Literature review

VL - 310

SP - 66-105, Impact Factor: 2.5

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

ER -