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Issue 86, 2016
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Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites

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Abstract

SrTiO3/Bi2WO6 hybrids were hydrothermally prepared and structurally examined by means of various chemical and physical techniques. Formation of heterojunction is well confirmed via HRTEM, XPS and PL and contributes immensely to the enhanced catalytic function of a composite in an assay of Rhodamine B (Rh B) photodegradation due to accelerated migration and separation of charge carriers at it. Among as-prepared samples, Bi2WO6 loaded with 8 wt% SrTiO3 proves most photocatalytically active in light of a top degradation rate (D) of ca. 98.4% and a peak apparent kinetic rate (k) of 0.0463 min−1. Besides, h+ and ·OH turn out to be the major reactive species for Rh B degradation. Finally, based on theoretical and experimental results, a possible reaction mechanism was proposed.

Graphical abstract: Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites

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Article information


Submitted
19 May 2016
Accepted
31 Jul 2016
First published
16 Aug 2016

RSC Adv., 2016,6, 83471-83481
Article type
Paper

Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites

L. Zhang, W. Tian, Y. Chen, J. Chen, H. Teng, J. Zhou, J. Shi and Y. Sun, RSC Adv., 2016, 6, 83471
DOI: 10.1039/C6RA13022D

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