Phase-dependant photochemistry of TiO2 nanoparticles in the degradation of organic dye methylene blue under solar light irradiation

Phase-dependant photochemistry of TiO2 nanoparticles in the degradation of organic dye methylene... This paper describes the photochemistry of nanoparticles of TiO2 in anatase, anatase/rutile, and rutile phases for the degradation of methylene blue (MB) under solar light irradiation. For this process, TiO2 nanoparticles were synthesized by a sol–gel method, and different phases were achieved by annealing the prepared particles at various temperatures. Further, the annealed products were subjected to structural, optical, and morphological characterizations. The photocatalytic measurements show that TiO2 in the anatase phase possesses superior activity towards the degradation of MB due to its smaller crystallite size, enhanced BET surface area, higher pore size, and low charge transfer resistance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Physics A: Materials Science Processing Springer Journals

Phase-dependant photochemistry of TiO2 nanoparticles in the degradation of organic dye methylene blue under solar light irradiation

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Physics; Condensed Matter Physics; Optical and Electronic Materials; Nanotechnology; Characterization and Evaluation of Materials; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment
ISSN
0947-8396
eISSN
1432-0630
D.O.I.
10.1007/s00339-017-1191-z
Publisher site
See Article on Publisher Site

Abstract

This paper describes the photochemistry of nanoparticles of TiO2 in anatase, anatase/rutile, and rutile phases for the degradation of methylene blue (MB) under solar light irradiation. For this process, TiO2 nanoparticles were synthesized by a sol–gel method, and different phases were achieved by annealing the prepared particles at various temperatures. Further, the annealed products were subjected to structural, optical, and morphological characterizations. The photocatalytic measurements show that TiO2 in the anatase phase possesses superior activity towards the degradation of MB due to its smaller crystallite size, enhanced BET surface area, higher pore size, and low charge transfer resistance.

Journal

Applied Physics A: Materials Science ProcessingSpringer Journals

Published: Aug 20, 2017

References

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