Next Sustainability最新文献

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Continuous flow synthesis and applications of carbon dots: a mini-review 碳点的连续流合成及其应用综述

Next Sustainability

Pub Date : 2023-03-01 DOI: 10.1016/j.nxsust.2023.100001

Carlotta Campalani , Davide Rigo

Carbon dots (CDs) are gaining growing interest within the scientific community thanks to their unique properties in high value applications. Currently, major issues are their scale-up synthesis, and the control of the reaction conditions both for their production and their application. Continuous flow (CF) chemistry and technologies can be valuable solutions to overcome these problems allowing precise control over critical synthetic parameters in a reproducible and more productive way. CF synthesis can lead to nanoparticles with more easily tunable and controllable properties (i.e. narrower size distribution and higher quantum yield) compared to common batch methodologies. In addition, the small environmental impact and high efficiency of CF can pave the way to large scale production and application of the carbon nanomaterials. For instance, supercritical water is a promising reaction medium to carry out the CF synthesis of CDs in very short time. This review showcases CF procedures for the preparation of CDs, their applications in CF photocatalysis and other niche uses, and gives some ideas on future perspectives in the field.

碳点(cd)由于其在高价值应用中的独特性能，在科学界引起了越来越多的兴趣。目前的主要问题是它们的规模化合成，以及它们的生产和应用的反应条件控制。连续流(CF)化学和技术是克服这些问题的有价值的解决方案，可以以可重复的、更高效的方式精确控制关键的合成参数。与普通的批量方法相比，CF合成可以使纳米颗粒具有更容易调节和可控的性质(即更窄的尺寸分布和更高的量子产率)。此外，CF的环境影响小，效率高，为碳纳米材料的大规模生产和应用铺平了道路。例如，超临界水是一种很有前途的反应介质，可以在很短的时间内进行CF合成CDs。本文综述了CF制备CDs的方法、CF光催化及其在其他领域的应用，并对该领域的发展前景提出了展望。

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