Journal
OPTICAL MATERIALS
Volume 96, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2019.109312
Keywords
BiOCl nanosheets; Reduced graphene oxide (rGO); Characterization; Photocatalytic degradation
Categories
Funding
- National Key R&D Program of China [2018YFD1100501]
- Science and Technology Innovation Special Projects of Social Undertakings and Livelihood Support, Chongqing [cstc2016shinszx20009]
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2017jcyjBX0080]
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To further enhance the photocatalytic performance of BiOCl, a facile hydrothermal reduction reaction was used to synthesize the reduced graphene oxide- (rGO-) modified ternary compound photocatalyst beta-NaYF4:Yb3+, Er3+@BiOCl-rGO (NYF-Bi-rGO). rGO prepared using a hydrothermal method showed good conductivity. Furthermore, the specific surface area of NYF-Bi-rGO was 20-fold larger than that of NYF, which is a quality that could prove highly advantageous for use in pollutant adsorption. In addition, the ternary photocatalytic system produced by rGO increased the absorption intensity of NYF-Bi in the visible light region, and caused a red-shift of the entire absorption cross-section. In particular, analysis of carrier migration showed the introduction of rGO promoted the separation of the photoelectron-hole pairs of BiOCl, inhibited its recombination and improved the photocatalytic efficiency of the ternary photocatalyst NYF-Bi-rGO.
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