Photocatalytic degradation of phenol by iodine doped tin oxide nanoparticles under UV and sunlight irradiation
2015 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, Vol. 618, 366-371 p.Article in journal (Refereed) Published
Iodine doped tin oxide (SnO2:I) nanoparticles were prepared by sol-gel synthesis and their photocatalytic activities with phenol as a test contaminant were studied. In the presence of the catalysts, phenol degradation under direct sunlight was comparable to what was achieved under laboratory conditions. Photocatalytic oxidation reactions were studied by varying the catalyst loading, light intensity, illumination time, pH of the reactant and phenol concentration. Upon UV irradiation in the presence of SnO2:I nanoparticles, phenol degrades very rapidly within 30 min, forming carboxylic acid which turns the solution acidic. Phenol degradation rate with 1% iodine doped SnO2 nanoparticles is at least an order of magnitude higher compared to the degradation achieved through undoped SnO2 nanoparticles under similar illumination conditions.
Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 618, 366-371 p.
IdentifiersURN: urn:nbn:se:kth:diva-176592DOI: 10.1016/j.jallcom.2014.08.120ISI: 000344208800058ScopusID: 2-s2.0-84907221107OAI: oai:DiVA.org:kth-176592DiVA: diva2:905170
QC 201603182016-02-212015-11-072016-03-18Bibliographically approved