Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Faculty of Sciences of University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007, Porto, Portugal.
Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Faculty of Sciences of University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007, Porto, Portugal; LACOMEPHI, GreenUPorto, Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences of University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007, Porto, Portugal.
Chemosphere. 2022 Aug;301:134731. doi: 10.1016/j.chemosphere.2022.134731. Epub 2022 Apr 27.
Pharmaceuticals are becoming increasingly more relevant water contaminants, with photocatalysts (such as TiO) being a promising approach to remove these compounds from water. However, TiO has poor sunlight-harvesting capacity, low photonic efficiency, and poor adsorption towards organic pollutants. One of the emerging strategies to enhance the photocatalytic performance of TiO is by conjugating it with fluorescent carbon dots. Herein, we performed a critical review of the development of TiO - carbon dots nanocomposites for the photocatalytic removal of pharmaceuticals. We found that carbon dots can improve the photocatalytic efficiency of the resulting nanocomposites, mostly due to increasing the adsorption of organic pollutants and enhancing the absorption in the visible range. However, while this approach shows significant promise, we also identified and discussed several aspects that need to be addressed before this strategy could be more widely used. We hope that this review can guide future studies aiming to the development of enhanced photocatalytic TiO - carbon dots nanocomposites.
药品正日益成为水体污染物的重要来源，光催化剂（如 TiO）是一种很有前途的方法，可以从水中去除这些化合物。然而，TiO 对阳光的吸收能力差、光子效率低，对有机污染物的吸附能力也差。提高 TiO 光催化性能的新兴策略之一是将其与荧光碳点结合。在此，我们对用于光催化去除药品的 TiO-碳点纳米复合材料的发展进行了批判性评价。我们发现，碳点可以提高所得纳米复合材料的光催化效率，这主要是由于增加了有机污染物的吸附，并增强了在可见光范围内的吸收。然而，尽管这种方法显示出了巨大的潜力，但我们也发现并讨论了在这种策略得到更广泛应用之前需要解决的几个方面。我们希望本综述能为开发增强型光催化 TiO-碳点纳米复合材料的未来研究提供指导。
