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Title: Single-crystal Bi2Ga4O9 nanoplates with exposed {110} facets for photocatalytic degradation of Acid Red 1
Authors: Liu, J
Lu, W 
Zhong, Q
Jin, XD
Wei, LY
Wu, HZ
Zhang, XL
Li, LL
Wang, ZL
Keywords: Bi2Ga4O9
Acid Red 1
Issue Date: 2017
Publisher: Elsevier
Source: Molecular catalysis, 2017, v. 433, p. 354-362 How to cite?
Journal: Molecular catalysis 
Abstract: Single-crystal Bi2Ga4O9 nanoplates with exposed {110} facets have been synthesized without any organic facet-controlling agents. The nanostructures and the formation process mechanism of the obtained Bi2Ga4O9 nanoplates are investigated using XRD, TEM and SEM. UV-vis DRS and VB-XPS analyses demonstrate that the CB position of Bi2Ga4O9 nanoplates is shifted up by 0.21 eV compared with that of Bi2Ga4O9 particles. PL spectra and photoelectrochemical texts show that the separation efficiency of photogenerated electron-hole pairs of Bi2Ga4O9 nanoplates is higher than that of Bi2Ga4O9 particles. The enhanced photocatalytic activity of Bi2Ga4O9 nanoplates is mainly ascribed to the exposed {110} facets. PL technique and radical trapping experiments demonstrate that h(+), center dot OH and center dot O-2(-) are responsible for the degradation of Acid Red 1 (AR1) over Bi2Ga4O9 nanoplates.
ISSN: 2468-8231
DOI: 10.1016/j.mcat.2017.02.033
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