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合聚合物修改TiO的性能可见光光降解有机物

Cristina Giorgiana Coromelci^1,2, Elvira Turcu³, Florica Doroftei³

¹Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iaşi, 11 Carol I Blvd, 700506 Iaşi, Romania.

|July 14, 2023

概括

这项研究开发了一种可见光激活的二氧化 (TiO2) 光催化剂,将其与聚-3,4-乙烯二氧化 (PEDOT) 结合起来. 新的TiO2/PEDOT系统使用可见光有效降解有机污染物.

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:

二氧化 (TiO2) 由于其稳定性和低成本,是污染物清除的有希望的光催化剂.
目前的TiO2光催化剂主要是紫外线活性,限制了它们在阳光下的效率.
开发可见光活性光催化剂对于提高太阳能利用率至关重要.

研究的目的:

为了合成和描述可见光光催化剂的TiO2 / 结合聚合物系统.
通过结合光敏剂来增强TiO2的吸光范围.
评估合成材料对有机污染物降解的光催化效率.

主要方法:

合成的TiO2纳米架构使用超声波辅助的sol-gel方法.
在TiO2上沉积聚-3,4-乙烯-二氧化- (PEDOT),以创建TiO2/PEDOT复合材料.
使用X射线衍射,FTIR,SEM,UV-Vis扩散反射和N2吸附来表征复合材料.

主要成果:

与裸体TiO2相比,合成的TiO2/PEDOT复合材料表现出中等度和降低的带隙值.
这些材料在可见光照射下表现出光催化活性.
在可见光下使用TiO2/PEDOT实现了高达99%的刚果红色染料降解.

结论:

通过整合PEDOT成功合成了可见光激活的TiO2光催化剂.
TiO2/PEDOT系统显示了利用太阳能有效去除有机污染物的巨大潜力.
这一进步解决了依赖紫外线的TiO2光催化剂的局限性.

关键词:

在TiO2的过程中,TiO2 结合聚合物的聚合物.中等度 (mesoporosity) 是指中等度的存在.有机污染物有机污染物可见光可见光可见光.

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