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| MoS2/Ag/g-C3N4 Z-scheme heterojunction: Preparation and photocatalytic performance |
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| Abstract: MoS2/Ag/g-C3N4 composite photocatalysts were prepared via hydrothermal synthesis, and a series of analytical methods were employed for systematic characterization. The results indicate that the significant enhancement in catalytic degradation activity is attributed to the formation of Z-scheme heterojunction, which effectively facilitates the transport and separation of photogenerated charge carriers while suppressing the recombination of photogenerated electron and hole pairs. Degradation experiments demonstrated that the prepared composite material achieved a degradation rate of up to 98% for rhodamine B (RhB) within 120 min, exhibiting superior photocatalytic performance compared to individual photocatalysts. Furthermore, capture experiments and electron paramagnetic resonance (EPR) results revealed that superoxide radicals (·O2-) and photogenerated holes (h+) were the key active species in the photocatalytic degradation of RhB. Finally, an iN-depth discussion of the photocatalytic degradation mechanism of the composite material was conducted. |
| Keywords: MoS2/Ag/g-C3N4 heterojunction photocatalytic degradation degradation mechanism |
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| LIU Qingwang.MoS2/Ag/g-C3N4 Z-scheme heterojunction: Preparation and photocatalytic performance[J].Chinese Journal of Inorganic Chemistry,2025,41(4):821-832. |
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