INVESTIGADORES
PEREZ Manuel Alejo
artículos
Título:
One-Step/One-Pot Decoration of Oxide Microparticles with Silver Nanoparticles
Autor/es:
M. A. MACCHIONE, O. A. DOUGLAS-GALLARDO, L. A. PÉREZ, N. PASSARELLI, R. MOIRAGHI, A. SPITALE, F. Y. OLIVA, M. M. MARISCAL, E. A. CORONADO, V. A. MACAGNO, M. A. PÉREZ; D. BAHENA, M. JOSÉ-YACAMÁN
Revista:
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Editorial:
ACADEMIC PRESS INC ELSEVIER SCIENCE
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 428 p. 32 - 35
ISSN:
0021-9797
Resumen:
Hypothesis: Heterogeneous nucleation of silver oxide (Ag2O) onto oxide microparticles (OMPs) followed by spontaneous thermal decomposition produce nanostructures made of OMPs decorated with silver nanoparticles (OMP|AgNPs). Experiments: Colloidal chemistry methods have been used to produce the decoration of OMPs with silver nanoparticles (AgNPs), by carrying out the Ag2O precipitation/thermal decomposition. The process is driven in water enriched acetone medium containing NaOH, NH3, AgNO3 and SiO2MPs as substrate. Optical and morphological properties of OMP|AgNPs were characterized by using STEM, EDS, HRTEM and Raman spectroscopy. Findings: A new synthetic method to decorate OMPs (TiO2, SiO2) with metallic AgNPs in a single step/ single pot reaction is proven effective to produce OMP|AgNPs either in aqueous or water enriched media.