Reduced graphene oxide and Ag wrapped TiO2 photocatalyst for enhanced visible light photocatalysis
Author(s) -
Kah Hon Leong,
Lan Ching Sim,
Detlef W. Bahnemann,
Min Jang,
Shaliza Ibrahim,
Pichiah Saravanan
Publication year - 2015
Publication title -
apl materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.571
H-Index - 60
ISSN - 2166-532X
DOI - 10.1063/1.4926454
Subject(s) - materials science , photocatalysis , graphene , visible spectrum , surface plasmon resonance , photoluminescence , oxide , raman spectroscopy , absorption (acoustics) , chemical engineering , photochemistry , nanoparticle , raman scattering , nanotechnology , optoelectronics , catalysis , composite material , optics , organic chemistry , metallurgy , chemistry , physics , engineering
A well-organised reduced graphene oxide (RGO) and silver (Ag) wrapped TiO2 nano-hybrid was successfully achieved through a facile and easy route. The inherent characteristics of the synthesized RGO-Ag/TiO2 were revealed through crystalline phase, morphology, chemical composition, Raman scattering, UV-visible absorption, and photoluminescence analyses. The adopted synthesis route significantly controlled the uniform formation of silver nanoparticles and contributed for the absorption of light in the visible spectrum through localized surface plasmon resonance effects. The wrapped RGO nanosheets triggered the electron mobility and promoted visible light shift towards red spectrum. The accomplishment of synergised effect of RGO and Ag well degraded Bisphenol A under visible light irradiation with a removal efficiency of 61.9%
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