Scholarlink

<p>The results demonstrated that the Ag₂S/TiO₂ composite catalyst with a molar ratio of 1:6 exhibited superior particle dispersion and uniformity, thereby enhancing the migration efficiency of photogenerated carriers. XRD analysis revealed that the Ag₂S and TiO₂ catalysts exhibited a monoclinic and anatase crystal structure, respectively, with no additional impurity peaks detected. Furthermore, the visible light absorption of the catalysts with different molar ratios underwent a significant redshift, which improved their visible light response capability. Under optimal conditions, where the molar ratio was 1:6, the catalyst dosage was 1.0&#xa0;g/L, and the pH was 7, the reaction was conducted under visible light for 210&#xa0;min. The removal efficiency of TCH reached 90.72% for an initial concentration of 30&#xa0;mg/L. Notably, under the same optimal conditions, the removal efficiency of TCH remained at 77.00% even after five reuse cycles, indicating excellent photocatalytic stability. The degradation of TCH primarily occurred through deamination, demethylation, and hydrogenation pathways.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Photocatalytic Degradation of Tetracycline Hydrochloride by Modified TiO2 Catalyst

  • 期刊论文

  • 发表日期：

    2025年10月4日

查看全文
  • Xiaoliang Yang,
  • Hengcan Dai,
  • Kangtao Yuan,
  • Hao Tang,
  • Zirui Luo

摘要

The results demonstrated that the Ag₂S/TiO₂ composite catalyst with a molar ratio of 1:6 exhibited superior particle dispersion and uniformity, thereby enhancing the migration efficiency of photogenerated carriers. XRD analysis revealed that the Ag₂S and TiO₂ catalysts exhibited a monoclinic and anatase crystal structure, respectively, with no additional impurity peaks detected. Furthermore, the visible light absorption of the catalysts with different molar ratios underwent a significant redshift, which improved their visible light response capability. Under optimal conditions, where the molar ratio was 1:6, the catalyst dosage was 1.0 g/L, and the pH was 7, the reaction was conducted under visible light for 210 min. The removal efficiency of TCH reached 90.72% for an initial concentration of 30 mg/L. Notably, under the same optimal conditions, the removal efficiency of TCH remained at 77.00% even after five reuse cycles, indicating excellent photocatalytic stability. The degradation of TCH primarily occurred through deamination, demethylation, and hydrogenation pathways.