In Situ Solid‐State Synthesis of a AgNi/g‐C 3 N 4 Nanocomposite for Enhanced Photoelectrochemical and Photocatalytic Activity
2016; Wiley; Volume: 9; Issue: 19 Linguagem: Inglês
10.1002/cssc.201600740
ISSN1864-564X
AutoresNimai Bhandary, Aadesh P. Singh, Sandeep Kumar, Pravin P. Ingole, Gohil S. Thakur, Ashok K. Ganguli, Suddhasatwa Basu,
Tópico(s)Ammonia Synthesis and Nitrogen Reduction
ResumoA graphitic carbon nitride (g-C3 N4 ) polymer matrix was embedded with AgNi alloy nanoparticles using a simple and direct in situ solid-state heat treatment method to develop a novel AgNi/g-C3 N4 photocatalyst. The characterization confirms that the AgNi alloy particles are homogeneously distributed throughout the g-C3 N4 matrix. The catalyst shows excellent photoelectrochemical activity for water splitting with a maximum photocurrent density of 1.2 mA cm-2 , which is the highest reported for doped g-C3 N4 . Furthermore, a detailed experimental study of the photocatalytic degradation of Rhodamine B (RhB) dye using doped g-C3 N4 showed the highest reported degradation efficiency of approximately 95 % after 90 min. The electronic conductivity increased upon incorporation of AgNi alloy nanoparticles on g-C3 N4 and the material showed efficient charge carrier separation and transfer characteristics, which are responsible for the enhanced photoelectrochemical and photocatalytic performance under visible light.
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