Native defects in silver orthophosphate and their effects on photocatalytic activity under visible light irradiation
Applied Surface Science, 2018•Elsevier
Native defects in silver orthophosphate could be generated by simple co-precipitation
method under ethanol-aqueous solution using AgNO 3 and Na 2 HPO 4. 12H 2 O. AgNO 3
ethanol-aqueous solution with the ethanol contents of 0%, 25%, 50%, 75%, 90% and 100%
was reacted with Na 2 HPO 4 aqueous solution. The produced catalysts were characterized
using XRD, DRS, FE-SEM, BET specific surface area and XPS. The increase of ethanol
content in the synthesis process decreased the Ag/P atomic ratio of Ag 3 PO 4. The native …
method under ethanol-aqueous solution using AgNO 3 and Na 2 HPO 4. 12H 2 O. AgNO 3
ethanol-aqueous solution with the ethanol contents of 0%, 25%, 50%, 75%, 90% and 100%
was reacted with Na 2 HPO 4 aqueous solution. The produced catalysts were characterized
using XRD, DRS, FE-SEM, BET specific surface area and XPS. The increase of ethanol
content in the synthesis process decreased the Ag/P atomic ratio of Ag 3 PO 4. The native …
Abstract
Native defects in silver orthophosphate could be generated by simple co-precipitation method under ethanol-aqueous solution using AgNO3 and Na2HPO4.12H2O. AgNO3 ethanol-aqueous solution with the ethanol contents of 0%, 25%, 50%, 75%, 90% and 100% was reacted with Na2HPO4 aqueous solution. The produced catalysts were characterized using XRD, DRS, FE-SEM, BET specific surface area and XPS. The increase of ethanol content in the synthesis process decreased the Ag/P atomic ratio of Ag3PO4. The native defects of silver vacancy might be generated on the surface of Ag3PO4. The activity of Ag3PO4 for Rhodamine B degradation dramatically increased by 5.8 times higher compared to that of the pristine Ag3PO4. The defect states of Ag vacancies enhanced the separation of electron-hole pairs, leading to the improvement of photocatalytic activity.
Elsevier