Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 868, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.159266
Keywords
Graphitic carbon nitride; Ternary composite; Dye degradation
Categories
Funding
- National Key Research and Development Program of China [2017YFA0207301]
- National Natural Science Foundation of China [21890751, 21471036]
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In this study, ternary composites containing AgCl and Au nanoparticles on g-C3N4 were prepared, showing excellent photocatalytic performance in degrading cationic dyes.
Ternary composites involved graphitic carbon nitride (g-C3N4) have gained scientific interest in recent years. Herein, we report a series of ternary composites containing AgCl nanoparticles, Au nanoparticles, and g-C3N4 (AgCl/Au/CN) via a two-step chemical deposition method. In this semiconductor-metal-semiconductor structure, AgCl nanoparticles can absorb organic anions, as well as form a Z-scheme heterojunction combined with g-C3N4; Au nanoparticles can play a role in the separation of photogenerated carriers. These features allow AgCl/Au/CN to exhibit excellent photocatalytic degradation performance for anionic dyes. When the molar ratios of AgCl and Au to g-C3N4 are 1% and 0.5%, respectively, the optimal AgCl/Au/CN sample can achieve effective degradation for Rhodamine B within 25 min under visible-light irradiation of relatively low intensity. (C) 2021 Elsevier B.V. All rights reserved.
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