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Deposition of Ag nanoparticles on g-C3N4 nanosheet by N,N-dimethylformamide: Soft synthesis and enhanced photocatalytic activity

Published online by Cambridge University Press:  02 September 2014

Xiaomeng Lü ,
Jiayu Shen ,
Ziwei Wu Open the ORCID record for Ziwei Wu [Opens in a new window] ,
Jiaxi Wang  and
Jimin Xie
Xiaomeng Lü*
Affiliation:
Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China
Jiayu Shen
Affiliation:
Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China
Ziwei Wu
Affiliation:
Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China
Jiaxi Wang
Affiliation:
Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China
Jimin Xie*
Affiliation:
Department of Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Plasmonic Ag nanoparticles (AgNPs) with narrow distribution were successfully loaded on graphitic carbon nitride (g-C3N4) sheet by thermal polymerization of melamine precursor and a simple wet-chemical pathway in the presence of polyvinylpyrrolidone (PVP). N,N-dimethylformamide (DMF) was used as an efficient reducing agent as well as a solvent and its presence facilitated homogeneous distribution of AgNPs under mild reaction condition and easy control of its particle growth under different precursor amounts. Ag/g-C3N4 composites of different Ag content were prepared, and the phase, chemical structure, morphologies, electronic and optical properties of Ag/g-C3N4 heterostructures were well characterized, respectively. The photocatalytic activity of Ag/g-C3N4 composites was evaluated by the decolorization of methyl orange (MO), and they exhibited superior photocatalytic activity to bulk g-C3N4 under visible-light irradiation. Influence of Ag content to photocatalytic activity was also discussed and possible mechanism was explored based on the analysis of photoluminescence spectra (PL) and photodecoloration activity.

Keywords

Agchemical synthesiscatalytic
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 18 , 28 September 2014 , pp. 2170 - 2178
Copyright
Copyright © Materials Research Society 2014 

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