One-pot synthesis of gold nanoparticle/molybdenum cluster/graphene oxide nanocomposite and its photocatalytic activity

Authors: Alexandre Barras, Manash R. Das, Rami Reddy Devarapalli, Manjusha V. Shelke, Stéphane Cordier, Sabine Szunerits, Rabah Boukherroub

Abstract:
The paper reports on a facile one-pot synthesis of a tri-component gold nanoparticle/molybdenum cluster/graphene oxide (AuNPs@Mo–GO) nanohybrid composite. The synthetic methodology consists on direct UV irradiation of an aqueous solution containing graphene oxide (GO), Na₂[Mo₆Br₈(N₃)_6], HAuCl₄·3H₂O and isopropanol at room temperature in air using a UV fiber lamp. The composite material exhibits veryhighphotocatalytic activity for the degradationof rhodamineBunder visible lightirradation. The resulting nanohybrid material was characterized using Raman spectroscopy, UV–vis spectrometry, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). 

Keywords:
[Mo₆Br₈(N₃)₆]²⁻ cluster
Graphene oxide
Gold nanoparticles
Nanohybrid
Rhodamine B
Photodegradation
Visible light

Published in: Applied Catalysis B: Environmental (Volumes 130–131, Pages 1-336, 7 February 2013)

Publisher: Elsevier  

ISSN Information: 0926-3373

One-pot synthesis of gold nanoparticle/molybdenum cluster/graphene oxide nanocomposite and its photocatalytic activity

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