Synthesis and application of Ag3PO4 photocatalyst modified by g-C3N4 for tetracycline hydrochloride degradation

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2024-08-08 DOI:10.1016/j.solidstatesciences.2024.107654

Jing Yang, Haixin Yang, Meng Li, Hongxi Zhang, Liang Wei, Xiande Yang

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Abstract

Finding highly efficient photocatalysts has practical significance for antibiotics degradation. In this work, g-C₃N₄ modified Ag₃PO₄ had been prepared via in-situ deposition method. Their photocatalytic activities were investigated through tetracycline hydrochloride (TCH) degradation under visible light. In summary, sample 6 wt% g-C₃N₄/Ag₃PO₄ (6 wt% CN/APO) exhibited a good degradation efficiency (72.1 %) to TCH within 30 min, while pure Ag₃PO₄ and g-C₃N₄ was only 57.4 % and 5.8 %, respectively. Because of the construction of heterojunction structure, 6 wt% CN/APO composite had low fluorescence intensity, high photocurrent density and low resistance, which were helpful for the rapid separation of photogenerated carriers. Therefore, the photocatalytic property of Ag₃PO₄ was obviously enhanced. In addition, sample 6 wt% CN/APO also showed excellent photocatalytic stability, and h⁺ played a main role in TCH degradation. Its possible photocatalytic mechanism was also elucidated.

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经 g-C3N4 修饰的 Ag3PO4 光催化剂在盐酸四环素降解中的合成与应用

寻找高效光催化剂对于抗生素降解具有重要的现实意义。本研究通过原位沉积法制备了 g-CN 修饰的 AgPO。通过在可见光下降解盐酸四环素（TCH）研究了它们的光催化活性。总之，6 wt% g-CN/AgPO 样品（6 wt% CN/APO）在 30 分钟内对 TCH 具有良好的降解效率（72.1%），而纯 AgPO 和 g-CN 的降解效率分别仅为 57.4% 和 5.8%。由于构建了异质结结构，6 wt% CN/APO 复合材料具有低荧光强度、高光电流密度和低电阻，有利于快速分离光生载流子。因此，AgPO 的光催化性能明显增强。此外，6 wt% CN/APO 样品也表现出优异的光催化稳定性，在 TCH 降解中发挥了主要作用。同时还阐明了其可能的光催化机理。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.