Synthesis, characterization, enhanced sunlight photocatalytic properties, and stability of Ag/Ag3PO4 nanostructure-sensitized BiPO4
作者： Tzu-Yun Huang , Yen-Jui Chen , Chi-Yung Lai , Yang-Wei Lin
DOI: 10.1039/C5RA07101A
关键词: Infrared spectroscopy 、 Rhodamine B 、 Diffuse reflectance infrared fourier transform 、 X-ray photoelectron spectroscopy 、 Raman spectroscopy 、 Visible spectrum 、 Methyl orange 、 Photocatalysis 、 Materials science 、 Photochemistry
摘要: This novel Ag/Ag3PO4 nanostructure-sensitized BiPO4 (Ag/Ag3PO4/BiPO4) photocatalyst was synthesized using hydrothermal and impregnation processes. Powder X-ray diffraction, UV-Vis diffuse reflectance spectroscopy, Raman IR photoelectron transmission electron microscopy, scanning microscopy were used to characterize the as-prepared products. The optical properties morphology of exhibited drastic changes dependent on AgNO3 concentration. Regarding methylene blue (MB), rhodamine B, methyl orange degradation under solar irradiation (95% within 5 min), 15% Ag/Ag3PO4/BiPO4 considerably higher photocatalytic activity than P25. After five cycles, no apparent loss activity, confirming its stability despite recycling. practicality this validated according ability degrade MB in seawater, pond water, industrial wastewater samples, which also demonstrated advantages high activity. Moreover, showed sunlight-induced disinfection toward E. coli cells. enhanced improved could be attributed strong visible light absorption by nanostructures, a low electron–hole recombination rate, highly efficient separation photogenerated pairs throughout Ag3PO4/BiPO4 heterostructures. holes main reactive species.
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