Application of laser radiation for the treatment of waste materials using a photocatalyst

Soo K. Lee; Daniel McStay; Peter K J Robertson

doi:10.1117/12.307121

Application of laser radiation for the treatment of waste materials using a photocatalyst

Soo K. Lee, Daniel McStay, Peter K J Robertson

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

One effective approach is to destroy industrial waste and pollution is the use of a semiconductor photocatalysis system. To date such, photocatalysis systems have employed conventional linear light sources. Initial results from a study of a photocatalysis system incorporating a tripled Nd:YAG laser are reported. The laser light not only played a roll as a light source for activating the photocatalyst(TiO₂), but also destroyed the organic species directly via a photochemical process. The reaction intermediates and changes in their concentrations are monitored using HPLC. The relationship between the power of laser and kinetics of photoreaction are discussed.

Original language	English
Pages (from-to)	120-125
Number of pages	6
Journal	Proceedings of SPIE
Volume	3272
DOIs	https://doi.org/10.1117/12.307121
Publication status	Published - 30 Apr 1998

Keywords

HPLC
Photocatalysis
TiO
Tripled Nd:YAG laser

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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abstract = "One effective approach is to destroy industrial waste and pollution is the use of a semiconductor photocatalysis system. To date such, photocatalysis systems have employed conventional linear light sources. Initial results from a study of a photocatalysis system incorporating a tripled Nd:YAG laser are reported. The laser light not only played a roll as a light source for activating the photocatalyst(TiO2), but also destroyed the organic species directly via a photochemical process. The reaction intermediates and changes in their concentrations are monitored using HPLC. The relationship between the power of laser and kinetics of photoreaction are discussed.",

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AB - One effective approach is to destroy industrial waste and pollution is the use of a semiconductor photocatalysis system. To date such, photocatalysis systems have employed conventional linear light sources. Initial results from a study of a photocatalysis system incorporating a tripled Nd:YAG laser are reported. The laser light not only played a roll as a light source for activating the photocatalyst(TiO2), but also destroyed the organic species directly via a photochemical process. The reaction intermediates and changes in their concentrations are monitored using HPLC. The relationship between the power of laser and kinetics of photoreaction are discussed.

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KW - Photocatalysis

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KW - Tripled Nd:YAG laser

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