Nanocubes of rutile titania for enhanced visible light photocatalytic applications

Autor:	J. D. Sudha, Rajaraman Ramakrishnan, G. Krishna Priya, M. Sankaran, A. Aashish
Rok vydání:	2015
Předmět:	Materials science Band gap business.industry Condensed Matter Physics Optics Chemical engineering Rutile Zeta potential Photocatalysis General Materials Science Particle size Photodegradation business Visible spectrum BET theory
Zdroj:	Materials Chemistry and Physics. 157:31-38
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2015.03.009
Popis:	This paper demonstrates the preparation of rutile nanotitania using low cost bio-capping strategies. It was characterized for its particle size, zeta potential, photo-physical properties such as UV–Vis absorption and emission, crystalline phase by XRD, surface area by BET analysis, morphology by SEM and TEM. Results revealed the formation of nanocubes of rutile titania having band gap of ∼2.5 eV. Photocatalytic efficiency of nanotitania was envisaged by conducting visible light induced photodegradation of methylene blue (MB). Superior visible light photodegradation efficiency exhibited by nanotitania is attributed to the photo-catalytic and photo-sensitized oxidation mechanisms. From the various results, a plausible mechanism for the superior photodegradation efficiency exhibited by nanotitania is suggested. Total organic carbon (TOC) analysis further supported the photodegradation of MB.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d54bab23a99022b930a3644dfebed7e7 https://doi.org/10.1016/j.matchemphys.2015.03.009 Zobrazit plný text záznamu Full Text from ScienceDirect