Photocatalytic performance of combustion synthesized β-Ga2O3 for the degradation of tri-n-butyl phosphate in aqueous solution

H. Seshadri; P. Sinha

doi:10.1007/s10967-011-1469-0

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 292: Issue 2

Photocatalytic performance of combustion synthesized β-Ga₂O₃ for the degradation of tri-n-butyl phosphate in aqueous solution

Authors:

H. Seshadri

H. Seshadri Safety Research Institute, AERB, Kalpakkam, Tamil Nadu 603 102, India

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and

P. Sinha

P. Sinha Centralised Waste Management Facility, BARC Facilities, Kalpakkam, Tamil Nadu, India

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Pages:: 649–652

Online Publication Date:: 31 Oct 2011

Publication Date:: 01 May 2012

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-011-1469-0

Keywords:: Tri-n-butyl phosphate; Solution combustion synthesis; Photoreactor; Gas chromatography

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Abstract

Nanostructures of β-Ga₂O₃ were prepared by solution combustion route using urea as the fuel. Transmission electron microscopic measurements and powder X-ray diffraction measurements confirmed the crystalline nature of β-Ga₂O₃ with particle size in the range of 10–15 nm. Surface area measurements indicated that the synthesized semiconductor catalyst had a specific surface area of 30 m²/g. In this work, photocatalytic degradation studies of tri-n-butyl phosphate using nano sized β-Ga₂O₃ is presented. A cylindrical photoreactor was used for the degradation studies and gas chromatographic estimation was adopted to follow the extent of degradation. Complete degradation of tributyl phosphate could be achieved in less than 40 min using 10 mg of photocatalyst and 0.5 mL of H₂O₂ for 1000 mL of 400 ppm TBP. Degradation of TBP was found to follow pseudo first order kinetics and the rate of TBP degradation was found to be superior for β-Ga₂O₃ photocatalyst compared to P-25 TiO₂.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)