Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Morphological aspects and optical properties of Ag4P2O7

Full text
Pereira, Wyllamanney da S. [1] ; Gozzo, Cipriano B. [1] ; Longo, Elson [1] ; Leite, Edson R. [2] ; Sczancoski, Julio C. [1]
Total Authors: 5
[1] Univ Fed Sao Carlos, Dept Chem, Sao Carlos, SP - Brazil
[2] CNPEM, Brazilian Nanotechnol Natl Lab, Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Materials Letters; v. 248, p. 193-196, AUG 1 2019.
Web of Science Citations: 0

The structural, morphological and optical properties of silver pyrophosphate (Ag4P2O7) powders were investigated in detail. This material was synthesized by chemical precipitation (CP), conventional hydrothermal and microwave-assisted hydrothermal. The crystallization of hexagonal Ag4P2O7 phase presented a dependence with both temperature and synthesis approach. A system composed of doughnut/hexagonal-shaped microparticles was evidenced for the powders obtained by CP. The hydrothermal treatments modified these particle shapes. Ultraviolet-visible spectra revealed a band gap controlled by indirect electronic transitions. Broadband photoluminescence spectra with maximum emissions in blue region were detected, suggesting the participation of several intermediary energy levels in the band gap. (C) 2019 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 15/11917-8 - Study of photoluminescent properties and photocatalytic of Ag4P2O7, Ag3-2xNixPO4 and Ag3-2xCuxPO4
Grantee:Wyllamanney da Silva Pereira
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 12/14004-5 - Investigation of the photoluminescence and photocatalytic properties of pure and Mn, Cu, and Zn-doped BaWO4 and BaMoO4 powders
Grantee:Júlio César Sczancoski
Support type: Scholarships in Brazil - Post-Doctorate