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Efficient photocatalytic degradation of phenol in aqueous solution by SnO2:Sb nanoparticles
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Functional Materials, FNM.ORCID iD: 0000-0002-0074-3504
2016 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 370, 229-236 p.Article in journal (Refereed) PublishedText
Abstract [en]

Photodegradation of phenol in the presence of tin dioxide (SnO2) nanoparticles under UV light irradiation is known to be an effective photocatalytic process. However, phenol degradation under solar light is less effective due to the large band gap of SnO2. In this study antimony (Sb) doped tin dioxide (SnO2) nanoparticles were prepared at a low temperature (80 degrees C) by a sol-gel method and studied for its photo catalytic activity with phenol as a test contaminant. The catalytic degradation of phenol in aqueous media was studied using high performance liquid chromatography and total organic carbon measurements. The change in the concentration of phenol affects the pH of the solution due to the by-products formed during the photo-oxidation of phenol. The photoactivity of SnO2:Sb was found to be a maximum for 0.6 wt.% Sb doped SnO2 nanoparticles with 10 mg L-1 phenol in water. Within 2 h of photodegradation, more than 95% of phenol could be removed under solar light irradiation.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 370, 229-236 p.
Keyword [en]
Tin dioxide nanoparticles, Phenol degradation, Photocatalysis, Antimony, Doping
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-186607DOI: 10.1016/j.apsusc.2016.02.123ISI: 000374075000030ScopusID: 2-s2.0-84959420785OAI: oai:DiVA.org:kth-186607DiVA: diva2:932254
Note

QC 20160601

Available from: 2016-06-01 Created: 2016-05-13 Last updated: 2016-06-01Bibliographically approved

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Dutta, Joydeep
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