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<p>Photocatalytic technology had attracted attention for the abatement of organic contaminants in wastewater with solar energy. In this study, a binary supported heterojunction photocatalyst (AgIn(MoO<sub>4</sub>)<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub>) was constructed by a facile impregnation method, and the catalyst was utilized for the efficient degradation of tetracycline (TC) under visible light. The structure, micro-morphology and optical properties of the photocatalyst were also characterized and analyzed. Compared with g-C<sub>3</sub>N<sub>4</sub> and AgIn(MoO<sub>4</sub>)<sub>2</sub>, the composites exhibited excellent photocatalytic performance. Among them, superoxide radicals, hydroxyl radicals and holes were participated in the degradation reaction. In addition, the composites had good cyclic stability and a broad pH usage range. The enhanced photocatalytic degradation performance could be attributed to the Z-scheme electron transfer mechanism, which both promoted the separation of photogenerated carriers and utilized the strongest redox capacity in the monomer. Overall, this work provided a feasible strategy for constructing g-C<sub>3</sub>N<sub>4</sub>-based heterojunction catalysts for efficient removal of TC from polluted water.</p>

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Enhanced photocatalytic degradation activity of tetracycline by a binary AgIn(MoO4)2/g-C3N4 photocatalyst: the mechanism insight of Z-scheme charge transfer under visible light irradiation

  • 期刊论文

  • 发表日期：

    2025年8月23日

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  • Yuzhen Li,
  • Shuo Li,
  • Yunsheng Xia,
  • Zhaoxin Sun,
  • Borong Lan

摘要

Photocatalytic technology had attracted attention for the abatement of organic contaminants in wastewater with solar energy. In this study, a binary supported heterojunction photocatalyst (AgIn(MoO4)2/g-C3N4) was constructed by a facile impregnation method, and the catalyst was utilized for the efficient degradation of tetracycline (TC) under visible light. The structure, micro-morphology and optical properties of the photocatalyst were also characterized and analyzed. Compared with g-C3N4 and AgIn(MoO4)2, the composites exhibited excellent photocatalytic performance. Among them, superoxide radicals, hydroxyl radicals and holes were participated in the degradation reaction. In addition, the composites had good cyclic stability and a broad pH usage range. The enhanced photocatalytic degradation performance could be attributed to the Z-scheme electron transfer mechanism, which both promoted the separation of photogenerated carriers and utilized the strongest redox capacity in the monomer. Overall, this work provided a feasible strategy for constructing g-C3N4-based heterojunction catalysts for efficient removal of TC from polluted water.