Journal
FUEL
Volume 334, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2022.126586
Keywords
Carbon support; Heterojunction; Photocatalysis; One-pot synthesis; Aromatic amines and imines
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In this study, CdS nanoparticles were decorated on carbon nitride nanosheets to form a heterojunction nanocomposite. The activity of the nanocomposite in the reduction and oxidation reactions of nitroarenes and benzylamines was investigated. The results showed that the heterojunction improved the separation of charge carriers, leading to significantly enhanced yields and selectivity.
Oxidation and reduction reactions are essential in the chemical industries to produce various fine chemicals. However, the selectivity of the oxidized and reduced products is still a challenge to chemists and needs to be focused on. In the present work, CdS nanoparticles were decorated at carbon nitride nanosheets via the sol-gel method. The nanocomposite's activity was investigated for nitroarenes and benzylamines' reduction and oxidation reactions. The heterojunction improved the charge carriers' separation, which enhanced the yields of aniline and imines up to 99% with >99% selectivity. The reaction yields with the recovered photocatalyst were relatively similar to the fresh photocatalyst up to five cycles without losing the photocatalytic activity and without leaching the metal content in the reaction mixture. The heterojunction's physicochemical properties were also determined to investigate. The excellent photocatalytic activity of carbon nitride-based photocatalyst and one-pot two reactions has a broad scope and can elaborate on other organic transformations.
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