奎尔素敏感的共价有机框架促进光催化H2O2生产和抗菌作用
Feng-Ying Wang1, Hong-Xia Zhang2, Sheng-Hua Ma3
1College of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, China.
Journal of colloid and interface science
|April 19, 2025
概括
这项研究介绍了Quercetin作为TAPPy-Da-COF的稳定,天然敏感剂,增强过氧化生产和抗菌应用的光催化性能. 新的奎尔塞丁/TAPPy-Da-COF复合材料显示了提高效率和可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 光催化作用的光催化
- 绿色化学 绿色化学
背景情况:
- 单半导体光催化剂的吸收光谱狭窄,光生成载体重组以及太阳能利用率低.
- 目前的敏感剂,通常是染料分子,在光反应过程中表现出不良稳定性,需要新的,强大的替代品.
- 开发稳定和高度活跃的敏感化系统对于提高光催化效率至关重要.
研究的目的:
- 研究使用天然化合物奎尔素作为TAPPy-Da-COF的敏感剂.
- 为了提高光催化性能,包括过氧化的产生和抗菌活性,使用奎尔敏化复合材料.
- 为实际应用开发一种稳定且可重复使用的光催化材料.
主要方法:
- 奎尔赛丁被用作TAPPy-Da-COF的敏感剂,以制造奎尔赛丁/TAPPy-Da-COF复合物.
- 通过在可见光下测量纯水中的H2O2产量来评估光催化活性.
- 对大肠杆菌和金黄色葡萄球菌的抗菌作用进行了测试.
- 奎尔塞丁/TAPPy-Da-COF/聚乙烯醇 (PVA) 气凝使用交叉连接和冷干燥方法制备.
主要成果:
- 奎尔塞丁/TAPPy-Da-COF复合材料显示了光生成的电子孔对的快速分离和广泛的可见光响应.
- 奎尔塞丁/TAPPy-Da-COF的H2O2产量达到289.84μmol·h−1·g−1,与TAPPy-Da-COF相比增加了1.3倍.
- 可见光光催化产生了具有显著抗菌作用的活性氧物种 (ROS),对大肠杆菌和金黄色杆菌有显著的抗菌作用.
- 奎尔塞丁/TAPPy-Da-COF/PVA气凝表现出高效的H2O2生产,现场抗菌活性和易于重复使用.
结论:
- 天然奎思有效地使TAPPy-Da-COF敏感,显著改善光催化性能.
- 开发的复合材料为绿色,高效和低成本的光敏化剂提供了一个有希望的途径.
- 这项工作为合成具有增强稳定性和活性的高性能光催化复合材料提供了新的视角.
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