Room Temperature Electrodeposition of Ag₃PO₄Films

Abstract

Ag 3 PO 4 films were electrodeposited onto indium-tin oxide (ITO) coated glass through electrochemical generation of acid in a stable aqueous solution contained silver ammonia complexes and sodium phosphate at room temperature and pH 10. After the released H + ions lower the local pH at ITO working electrode, Ag + ions were dissociated from silver ammonia complex and then reacted with PO 43− to form Ag 3 PO 4 deposits on ITO. The morphologies of electrodeposited Ag 3 PO 4 films depended on the applied potentials: trisoctahedral like structure obtained at 1.2 V versus Ag/AgCl and tetrahedral structure obtained at 1.6 V versus Ag/AgCl. The absorption spectra of the electrodeposited Ag 3 PO 4 films were measured and they had direct and indirect band gaps of 2.43 eV and 1.99 eV, respectively. The electrodeposited Ag 3 PO 4 films produced stable sensitive photocurrent in response to visible light irradiation at pH 7.

Connecting structural, optical, and electronic properties and photocatalytic activity of Ag3PO4:Mo complemented by DFT calculations

“…The analyses of the electronic levels that comprise the band structure were evaluated by theoretical calculations. The bulk optimized Ag3PO4 presented an indirect 2.54 eV band gap, as found experimentally and described theoretically in the literature [11,54,55], between the M-Γ points. It is important to emphasize that this value was slightly higher compared to the other reported values [55,56].…”

Selective Deposition of Ag3PO4 on Specific Facet of BiVO4 Nanoplate for Enhanced Photoelectrochemical Performance

“…Electro‐Deposition Preparation of Ag 3 PO 4 : The electro‐deposition of Ag 3 PO 4 was according to the method reported by literature and carried out in three electrode systems . The electrolyte was the fresh silver‐ammonia solution which contained 0.02 M AgNO 3 and 0.02 M KH 2 PO 4 and its pH was adjusted to 10 by ammonia water.…”

Electrodeposition of AgCuO2Nanoplates

“…The oxidation potentials are in the potential range of H 2 O and NH 3 oxidation. [26][27][28][29] These observations indicate that Ag(I)/Cu(II) ammonia complexes act as catalysts for H 2 O or NH 3 oxidation. Previous work shows that the oxidation products in the depsoited solution might be O 2 , N 2 , NO 2 − or NO 3 − .…”