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Journal of Sol-Gel Science and Technology

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01-07-2016 | Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)

Self-propagating combustion synthesis and synergistic photocatalytic activity of GdFeO₃ nanoparticles

Authors: Li Li, Xiong Wang

Published in: Journal of Sol-Gel Science and Technology | Issue 1/2016

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Abstract

GdFeO₃ (GFO) nanoparticles were synthesized by a glycine-assisted self-propagating combustion process. The as-synthesized GdFeO₃ was characterized by X-ray diffraction, transmission electron microscopy, and UV–Vis diffuse reflectance spectra. The visible-light-responsive photocatalytic activity of GdFeO₃ nanoparticles was evaluated by the photodegradation of Rhodamine B under visible light. The results indicate that the as-prepared GdFeO₃ nanoparticles exhibit remarkable visible-light photocatalytic activity through the synergism of semiconductor-photocatalyzed oxidation and heterogeneous Fenton-like reaction. Compared with the bulk GFO, the photodecomposition rate of RhB was improved about 22 times when the simultaneous presence of the nanoparticles and H₂O₂ was observed. The mechanism and the main active species involved in photocatalytic oxidative reaction were also investigated through the carriers trapping experiments.

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Title: Self-propagating combustion synthesis and synergistic photocatalytic activity of GdFeO3 nanoparticles
Authors: Li Li
Xiong Wang
Publication date: 01-07-2016
Publisher: Springer US
Published in: Journal of Sol-Gel Science and Technology / Issue 1/2016
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI: https://doi.org/10.1007/s10971-016-4017-0

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