Journal
APPLIED SURFACE SCIENCE
Volume 396, Issue -, Pages 1775-1782Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2016.11.219
Keywords
RGO aerogel; BiOBr; Photocatalysis pollutant remediation; Visible light
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Funding
- State Key Laboratory of Heavy Oil Processing
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A series of BiOBr/reduced graphene oxide (RGO) aerogel was fabricated using a two steps hydrothermal method. Various methods such as SEM, TEM, DRS and Raman spectroscopy were employed to fully characterize the as-obtained BiOBr/RGO. Their photocatalytic degradation of methyl orange (MO) were studied under visible light irradiation. The combination of BiOBr and RGO result in an improved activity. The sample with 10 wt% RGO abbreviated as BiOBr-G10 shows the highest activity. Moreover, this sample exhibits a selective visible-light photocatalytic behavior as the degradation rate over MO (80%) is much higher than that over Rhodamin B (50%) and phenol (35%) in 60 min. The XRD and photoluminescence emission spectroscopy characterization of the BiOBr-G10 samples indicates an increased crystallization of BiOBr and efficient quenching of photo-excited electrons and holes contributes to the improved photocatalytic activities. (C) 2016 Elsevier B.V. All rights reserved.
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