1. Construction of Ag-modified ZnO/g-C3N4 heterostructure for enhanced photocatalysis performance.
- Author
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Liu, Shanshan, Cheng, Shaoli, Zheng, Jiale, Liu, Junhui, and Huang, Mingju
- Subjects
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FINITE difference time domain method , *SILVER nanoparticles , *DENSITY functional theory , *RHODAMINE B , *RESONANCE effect - Abstract
ZnO/g-C3N4 heterojunction modified with Ag nanoparticles (ZnO/CN/Ag) was synthesized by depositing ZnO nanorods/Ag nanoparticles onto g-C3N4 nanosheets. Under xenon lamp irradiation, 99% of Rhodamine B (RhB) was degraded by ZnO/CN/Ag-5% composite within 30 min, which was much higher than the degradation efficiency of ZnO and ZnO/CN. The synergistic effect of g-C3N4 and ZnO, along with the localized surface plasmon resonance effect of Ag NPs, contributes to the improvement of photocatalytic performance. Ag nanoparticle provides another charge transfer path from g-C3N4 to ZnO, which speeds up the separation of electron–hole pairs. Meanwhile, the catalyst had good stability and recyclability. Finite-difference time-domain method and the density functional theory were used to obtain the charge transfer process. The photodegradation process has been studied in depth. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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