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AuCu, AgCu and AuAg Bimetallic Nanoparticles: Synthesis, Characterization and Water Remediation

Published online by Cambridge University Press:  21 July 2016

Judith Tanori*
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, 83000 Hermosillo, Sonora, México.
Diana Vargas-Hernández
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, 83000 Hermosillo, Sonora, México. Catedrática CONACYT – Universidad de Sonora, 83000 Hermosillo, Sonora, México.
Elisa Martínez-Barbosa
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, 83000 Hermosillo, Sonora, México.
Raúl Borja-Urby
Affiliation:
Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, México, D. F., México.
Arturo García-Bórquez
Affiliation:
Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, México, D. F, México.
Jesús Arenas-Alatorre
Affiliation:
Instituto de Física, Universidad Nacional Autónoma de México, México, D. F., México.
Amir Maldonado
Affiliation:
Departamento de Física, Universidad de Sonora, 83000 Hermosillo, Sonora, México.
*
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Abstract

Self-assembling systems of amphiphilic molecules display structures similar to those of biomineralization natural systems. This allows to somehow mimic nature to synthesize nanomaterials with low polidispersity and with diverse morphologies. In this work we describe the synthesis and characterization of gold-copper, silver-copper, and gold-silver bimetallic nanoparticles by chemical reduction in self-assembling systems of two surfactants. The nanoparticles were characterized by Transmission Electron Microscopy and UV-Vis spectroscopy. We have prepared a composite material using mesoporous silica as support of the AuAg bimetallic nanoparticles. The system was used in photocatalysis experiments for water remediation applications. Our results show that the AuAg/SBA15 composite material degrades methyl orange in water from 17 ppm to 4 ppm in 30 minutes.

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Articles
Copyright
Copyright © Materials Research Society 2016 

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