Enhanced visible light photo catalytic activity of mixed phase nanocrystalline titania

Author

Paul, Sudipta ; Choudhury, Alamgir

Author_Institution

Dept. of Phys., Tezpur Univ., Napaam, India

fYear

2013

fDate

24-26 July 2013

Firstpage

471

Lastpage

474

Abstract

Photocatalytic activity of mixed phase nanocrystalline titania under visible light has been studied by monitoring the degradation of methylene blue in aqueous solution. The samples are characterized by XRD, HRTEM, UV-Vis and PL. Mixed phase titania is found to demonstrate enhanced photocatalytic activity compared to its pristine phase and this has been attributed to effective charge separation of photoinduced e-/h+ pair estimated qualitatively via PL analysis.

Keywords

X-ray diffraction; catalysis; nanostructured materials; photochemistry; photoluminescence; titanium compounds; transmission electron microscopy; ultraviolet spectra; visible spectra; HRTEM; TiO₂; UV-vis spectra; XRD; aqueous solution; charge separation; methylene degradation; mixed phase nanocrystalline titania; photoinduced pair; photoluminescence; pristine phase; visible light photocatalytic activity; Monitoring; Scanning electron microscopy; Spectroscopy; Three-dimensional displays; Mixed phase; Photocatalytic activity; e−/h+;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4799-1377-0

Type

conf

DOI

10.1109/ICANMEET.2013.6609313

Filename

6609313