Influence of annealing temperature on visible-light photocatalytic activities of Ag3PO4 particulates synthesized using CH3COOAg as a precursor

Ag 3 PO 4 microparticles (MPs) were prepared through a facile chemical precipitation route and using silver acetate (AgAc) as metal salt. The effect of annealing temperature ( T a ) and time ( τ a ) on the actual photocatalytic (PC) activity of Ag 3 PO 4 MPs is investigated. The optimal annealing pa...

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Bibliographic Details
Published in:Optoelectronics letters 2018-07, Vol.14 (4), p.291-295
Main Authors: Sui, Mei-rong, Sun, Ya-nan, Gu, Xiu-quan, Shi, Mei-lin, Wang, Yong, Liu, Lin-lin
Format: Article
Language:English
Subjects:
Annealing
Chemical precipitation
Electron mobility
Lasers
Microparticles
Optical Devices
Optics
Organic chemistry
Particulates
Phosphates
Photoelectric effect
Photoelectric emission
Photonics
Physics
Physics and Astronomy
Silver compounds
Tantalum
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Summary:Ag 3 PO 4 microparticles (MPs) were prepared through a facile chemical precipitation route and using silver acetate (AgAc) as metal salt. The effect of annealing temperature ( T a ) and time ( τ a ) on the actual photocatalytic (PC) activity of Ag 3 PO 4 MPs is investigated. The optimal annealing parameters are T a of 400 °C and τ a of 90 min. The enhanced PC activity by annealing at 400 °C is ascribed to the increase of electron mobility. Besides, an Ag 3 PO 4 photoelectrode was fabricated through a drop-coating deposition route, which demonstrates a photocurrent density of 80 μA/cm 2 and acceptable stability. The n-type conduction behavior of Ag 3 PO 4 is verified by a Mott-Schottky (M-S) plot.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-018-8020-2