优化的g-C3N4/TiO2复合材料用于可见光驱动的纳米光催化在挪弗洛素去除过程中
Bharat Bhargawa1, Tran Van Tam1, Ashok Kumar1
1School of Chemical Engineering, University of Ulsan, Ulsan, 44610, Republic of Korea.
Environmental research
|April 18, 2025
概括
这项研究开发了新的石墨碳化物/二氧化 (g-C3N4/TiO2) 复合物,用于高效的sonophotocatalytic降解norfloxacin. 这些先进的材料为从废水中去除抗生素提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术 纳米技术
背景情况:
- 水中的抗生素污染对环境和健康构成重大风险.
- 传统的水处理方法难以有效地去除像诺夫洛克萨这样的持久有机污染物.
- 开发高效和可持续的催化系统对于先进的氧化过程至关重要.
研究的目的:
- 为了合成和表征g-C3N4/TiO2复合物,以增强诺夫洛克萨的声光催化降解.
- 研究合成复合材料的结构,形态和电子特性.
- 阐明增强的催化活性背后的机制.
主要方法:
- 合成g-C3N4/TiO2复合材料的方法.
- 结构,形态和光谱的表征 (例如,XRD,SEM,TEM,XPS).
- 在可见光和超声波照射下进行的声光催化降解实验.
- 液体染色学-质谱学 (LC-MS) 用于降解路径分析.
主要成果:
- 成功形成g-C3N4/TiO2复合材料,具有强大的界面相互作用和有效的电荷分离.
- 与单个成分和传统光催化相比,诺弗洛克萨降解效率更高 (速率常数为5.91 × 10^-2 s^-1).
- 识别有助于增强活动的S-scheme异质连接和压电场.
- 通过LC-MS分析证明矿化成无毒副产品.
结论:
- g-C3N4/TiO2复合物对诺夫洛克萨降解具有出色的声光催化活性.
- S-scheme异质连接和压电效应是提高性能的关键.
- 这些复合材料代表了对废水处理和抗生素清除的有希望的可持续催化剂.
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