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<p>Harnessing renewable energy to decrease pollution is a significant area of investigation within environmental management. In this paper, tin-doped molybdenum disulfide (Sn-MoS<sub>2</sub>) piezoelectric materials with excellent piezoelectric properties have been prepared. PFM and electrochemical test results show that Sn-MoS<sub>2</sub> has enhanced piezoelectric properties. The findings from UV-Vis diffuse reflectance and XPS valence band analysis indicate that the introduction of tin modifies the band gap of MoS<sub>2</sub>, thereby facilitating electron flow within the material. In an ultrasonic environment, Sn-MoS<sub>2</sub> achieved a tetracycline removal efficiency of 98.3% in just 50 min, 1.51 times more effective than pure MoS<sub>2</sub>. The EPR results revealed that hydroxyl (–OH) and superoxide radicals (–O<sub>2</sub><sup>−</sup>) significantly contribute to the breakdown of tetracycline (TC). In addition, the potential degradation mechanisms and pathways have been suggested. This research offers a viable approach for addressing waterborne organic contaminants and holds significant potential for wider applications.</p>

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Design of Sn-doped MoS2 piezocatalyst for high-efficiency antibiotic degradation: mechanism and performance

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Mingyang Xu,
  • Xiang Wang,
  • Jingyu Yu,
  • Zhenlin Mu,
  • Shengjun Yang,
  • Chenxi Guo,
  • Guoxuan Li,
  • Yinglong Wang,
  • Fanqing Meng

摘要

Harnessing renewable energy to decrease pollution is a significant area of investigation within environmental management. In this paper, tin-doped molybdenum disulfide (Sn-MoS2) piezoelectric materials with excellent piezoelectric properties have been prepared. PFM and electrochemical test results show that Sn-MoS2 has enhanced piezoelectric properties. The findings from UV-Vis diffuse reflectance and XPS valence band analysis indicate that the introduction of tin modifies the band gap of MoS2, thereby facilitating electron flow within the material. In an ultrasonic environment, Sn-MoS2 achieved a tetracycline removal efficiency of 98.3% in just 50 min, 1.51 times more effective than pure MoS2. The EPR results revealed that hydroxyl (–OH) and superoxide radicals (–O2−) significantly contribute to the breakdown of tetracycline (TC). In addition, the potential degradation mechanisms and pathways have been suggested. This research offers a viable approach for addressing waterborne organic contaminants and holds significant potential for wider applications.