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

  • Xiaomeng Lü (a1), Jiayu Shen (a1), Ziwei Wu (a1), Jiaxi Wang (a1) and Jimin Xie (a1)...

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.

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Corresponding author

a) Address all correspondence to these authors. e-mail: lvxm@mail.ujs.edu.cn
b) e-mail: xiejm391@sohu.com

References

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Keywords

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

  • Xiaomeng Lü (a1), Jiayu Shen (a1), Ziwei Wu (a1), Jiaxi Wang (a1) and Jimin Xie (a1)...

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