Enhanced Visible Light Photocatalytic Degradation of Organic Pollutants over Flower-Like Bi2O2CO3 Dotted with Ag@AgBrReport as inadecuate


Enhanced Visible Light Photocatalytic Degradation of Organic Pollutants over Flower-Like Bi2O2CO3 Dotted with Ag@AgBr


Enhanced Visible Light Photocatalytic Degradation of Organic Pollutants over Flower-Like Bi2O2CO3 Dotted with Ag@AgBr - Download this document for free, or read online. Document in PDF available to download.

1

School of Chemical engineering and Technology, Tianjin University, Tianjin 300072, China

2

Hebei Key Laboratory for Environment Photocatalytic and Electrocatalytic Materials, College of Chemical Engineering, North China University of Science and Technology, Tangshan 063009, China

3

Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada





*

Authors to whom correspondence should be addressed.



Academic Editor: Greta R. Patzke

Abstract A facile and feasible oil-in-water self-assembly approach was developed to synthesize flower-like Ag@AgBr-Bi2O2CO3 micro-composites. The photocatalytic activities of the samples were evaluated through methylene blue degradation under visible light irradiation. Compared to Bi2O2CO3, flower-like Ag@AgBr-Bi2O2CO3 micro-composites show enhanced photocatalytic activities. In addition, results indicate that both the physicochemical properties and associated photocatalytic activities of Ag@AgBr-Bi2O2CO3 composites are shown to be dependent on the loading quantity of Ag@AgBr. The highest photocatalytic performance was achieved at 7 wt % Ag@AgBr, degrading 95.18% methylene blue MB after 20 min of irradiation, which is over 1.52 and 3.56 times more efficient than that of pure Ag@AgBr and pure Bi2O2CO3, respectively. Bisphenol A BPA was also degraded to further demonstrate the degradation ability of Ag@AgBr-Bi2O2CO3. A photocatalytic mechanism for the degradation of organic compounds over Ag@AgBr-Bi2O2CO3 was proposed. Results from this study illustrate an entirely new approach to fabricate semiconductor composites containing Ag@AgX-bismuth X = a halogen. View Full-Text

Keywords: semiconductors; chemical synthesis; X-ray diffraction; optical properties; catalytic properties semiconductors; chemical synthesis; X-ray diffraction; optical properties; catalytic properties





Author: Shuanglong Lin 1, Miao Wang 1, Li Liu 1, Yinghua Liang 2,* , Wenquan Cui 2, Zisheng Zhang 1,3,* and Nan Yun 1,3

Source: http://mdpi.com/



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