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Updated: Sep 9, 2025

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使用基于TiO₂的可逆转换超湿涂层,以提高高效的油性水处理和水净化

Zhong Lv¹, Yanfeng Yang¹, Lining Zhang¹

¹School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.

Journal of hazardous materials

|September 3, 2025

概括

这项研究开发了一种能有效分离油性废水和降解有机污染物的超湿棉织物,采用光催化和超湿的联合策略. 这种材料具有很高的分离效率和污染物降解,为净化水提供了全新的解决方案.

科学领域:

材料科学
环境科学
化学学

背景情况:

油性废水对环境构成重大威胁,需要有效的处理方案.
超疏水材料提供了石油水分离的潜力,但与复杂的污染物作斗争.
将超湿特性与光催化剂相结合,为多功能净水提供了一个有前途的方法.

研究的目的:

开发一种能够有效分离油水和光催化分解有机污染物的双功能棉织物.
调查油水分离的pH响应可逆转换可湿性机制.
评估材料在降解各种有机污染物的性能,并确定活性物种.

主要方法:

通过热聚合合成g-C3N4/TiO2 (CNTi) 异质连接.
使用自由基聚合的乙烯基终端二甲基聚素 (V-PDMS) 和烯酸 (AA) 的聚合.
通过浸泡涂层制造超湿涂层棉织物 (V-PDMS/AA/CNTi/CF).

主要成果:

在V-PDMS/AA/CNTi/CF涂层的织物中,重密度的分离效率达到99%,轻密度的油/水混合物达到96%.
该材料表现出优异的可回收性,稳定性和各种有机污染物的选择性降解 (罗达胺B,甲基蓝等). ) 的情况.
灭实验确定了超氧化基离子 (·O2 ̄) 和基 (·OH) 作为光催化降解中的关键活性物种.

结论:

开发的超湿棉织物为同时进行油水分离和有机污染物降解提供了高效和稳定的解决方案.
响应pH的可逆转换可湿性机制提高了不同油/水混合物的分离性能.
这项工作为设计用于先进水净化应用的多功能材料提供了一种新的策略.

关键词:

自由基聚合异质连接石油与水分离水的净化湿度转换

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