73.
Introducing plasmonic metals into semiconductor materials has been proven to be an attractive strategy for enhancing photocatalytic activity in the visible region. In this work, a novel and efficient Ag/Ag
2WO
4/g‐C
3N
4 (AACN) ternary plasmonic photocatalyst was successfully synthesized using a facile one‐step
in situ hydrothermal method. The composition, structure, morphology and optical absorption properties of AACN were investigated using X‐ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and UV–visible diffuse reflectance spectroscopy, respectively. Photocatalytic performance of AACN was evaluated via rhodamine B and tetracycline degradation. The results indicated that AACN had excellent photocatalytic performance for rhodamine B degradation with a rate constant of 0.0125 min
?1, which was higher than those of Ag
2WO
4 and Ag/Ag
2WO
4. Characterization and photocatalytic tests showed that the strong coupling effect between the Ag/Ag
2WO
4 nanoparticles and the exfoliated ultrathin g‐C
3N
4 nanosheets was superior for visible‐light responsivity and reduced the recombination rate of photogenerated electrons and holes. A proposed mechanism is also discussed according to the band energy structure and the experimental results.
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