Photocatalytic Degradation of Organic Dye by Sol-Gel-Derived Gallium-Doped Anatase Titanium Oxide Nanoparticles for Environmental Remediation
Joint Authors
Banerjee, Arghya Narayan
Joo, Sang Woo
Min, Bong-Ki
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-24
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Photocatalytic degradation of toxic organic chemicals is considered to be the most efficient green method for surface water treatment.
We have reported the sol-gel synthesis of Gadoped anatase TiO2 nanoparticles and the photocatalytic oxidation of organic dye into nontoxic inorganic products under UV irradiation.
Photodegradation experiments show very good photocatalytic activity of Ga-doped TiO2 nanoparticles with almost 90% degradation efficiency within 3 hrs of UV irradiation, which is faster than the undoped samples.
Doping levels created within the bandgap of TiO2 act as trapping centers to suppress the photogenerated electron-hole recombination for proper and timely utilization of charge carriers for the generation of strong oxidizing radicals to degrade the organic dye.
Photocatalytic degradation is found to follow the pseudo-first-order kinetics with the apparent 1st-order rate constant around 1.3×10−2 min−1.
The cost-effective, sol-gel-derived TiO2 : Ga nanoparticles can be used efficiently for light-assisted oxidation of toxic organic molecules in the surface water for environmental remediation.
American Psychological Association (APA)
Banerjee, Arghya Narayan& Joo, Sang Woo& Min, Bong-Ki. 2012. Photocatalytic Degradation of Organic Dye by Sol-Gel-Derived Gallium-Doped Anatase Titanium Oxide Nanoparticles for Environmental Remediation. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-997443
Modern Language Association (MLA)
Banerjee, Arghya Narayan…[et al.]. Photocatalytic Degradation of Organic Dye by Sol-Gel-Derived Gallium-Doped Anatase Titanium Oxide Nanoparticles for Environmental Remediation. Journal of Nanomaterials No. 2012 (2012), pp.1-14.
https://search.emarefa.net/detail/BIM-997443
American Medical Association (AMA)
Banerjee, Arghya Narayan& Joo, Sang Woo& Min, Bong-Ki. Photocatalytic Degradation of Organic Dye by Sol-Gel-Derived Gallium-Doped Anatase Titanium Oxide Nanoparticles for Environmental Remediation. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-997443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-997443