NDLI: Effect of light response on the photocatalytic activity of BiOCl$_{ x }$Br$_{1−x }$ in the removal of Rhodamine B from water

Content Provider	Springer Nature Link
Author	Mao, Xiao ming Fan, Cai mei
Copyright Year	2013
Abstract	BiOCl$_{ x }$Br$_{1−x }$ catalysts were synthesized through an alcoholysis method and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and diffuse reflectance spectroscopy (DRS). The as-prepared photocatalysts were found to be tetragonal crystal structure and lamellar plate morphology. Their band gaps were between 3.44 and 2.83 eV. The effect of light response on the photocatalytic activity of BiOCl$_{ x }$Br$_{1−x }$ was investigated by degradation of Rhodamine B (RhB). Complete removal of RhB from water was realized under simulated sunlight irradiation for 50 min with BiOCl$_{0.5}$Br$_{0.5}$. Mechanism studies showed that photogenerated holes and superoxide anion radicals played important roles in RhB photodegradation. The results of chemical oxygen demand (COD) confirmed RhB mineralization. The effect of light response on the activity of BiOCl$_{ x }$Br$_{1−x }$ was further investigated under monochromatic light irradiation, and BiOCl$_{0.5}$Br$_{0.5}$ catalyst exhibited the highest activity. Furthermore, BiOCl$_{0.5}$Br$_{0.5}$ exhibited high stability, suggesting its practical application for the removal of RhB pollutant from water.
Starting Page	1089
Ending Page	1096
Page Count	8
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	20
Issue Number	11
e-ISSN	1869103X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-11-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	photocatalysts photocatalytic activity light response degradation organic pollutants Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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