Proof-of-Concept Studies Directed toward the Formation of Metallic Ag Nanostructures from Ag3PO4 Induced by Electron Beam and Femtosecond Laser

Autor(es)

dos Santos, Clayane Carvalho ^[1] ; de Assis, Marcelo ^[1] ; Machado, Tholes Rafael ^[1] ; dos Santos Pereira, Paula Fabiana ^[1] ; Minguez-Vega, Gladys ^[2] ; Cordoncillo, Eloisa ^[3] ; Beltran-Mir, Hector ^[3] ; Donate-Buendia, Carlos ^[2] ; Andres, Juan ^[4] ; Longo, Elson ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos UFSCar, CDMF, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[2] UJI, Inst Noves Tecnol Lalmatge INIT, GROCUJI, Castellon de La Plana 12071 - Spain

^[3] UJI, Dept Inorgan & Organ Chem, Castellon de La Plana 12071 - Spain

^[4] UJI, Dept Analyt & Phys Chem, Castellon de La Plana 12071 - Spain

• Tipo de documento: Artigo Científico
• Fonte: PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION; v. 36, n. 6 JUN 2019.
• Citações Web of Science: 0

Resumo

In this work, for the first time, the instantaneous nucleation and growth processes of Ag nanoparticles on Ag3PO4 mediated by femtosecond laser pulses are reported and analyzed. The investigated samples are pure Ag3PO4 sample, electron-irradiated Ag3PO4 sample, and laser-irradiated sample. Complete characterization of the samples is performed using X-ray diffraction (XRD), Rietveld refinements, field emission scanning electron microscopy, and energy dispersive spectroscopy (EDS). XRD confirms that the irradiated surface layer remains crystalline, and according to EDS analysis, the surface particles are composed primarily of Ag nanoparticles. This method not only offers a one-step route to synthesize Ag nanoparticles using laser-assisted irradiation with particle size control, but also reports a complex process involving the formation and subsequent growth of Ag nanoparticles through an unexpected additive-free in situ fabrication process. (AU)

• Processo FAPESP: 13/26671-9 - Estudo teórico-experimental de semicondutores multifuncionais
• Beneficiário: Amanda Fernandes Gouveia
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 14/14171-4 - Investigação da estrutura cristalina e das propriedades fotoluminescentes, fotocatalíticas e antibacterianas dos nanocristais de (Ag2-2xZnX)WO4 com (x = 0; 0,25; 0,50; 0,75 e 1) incorporados na quitosana
• Beneficiário: Paula Fabiana dos Santos Pereira Lima
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado