Synthesis, properties, and utilization of carbon quantum dots as photocatalysts on degradation of organic dyes: A mini review

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106914

A. Muhammad Afdhal Saputra , Averroes Fazlur Rahman Piliang , Dellyansyah , Marpongahtun , Andriayani , Ronn Goei , Risky Ramadhan H.T.S. , Saharman Gea

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Abstract

This review highlights Carbon Quantum Dots (CQDs) as promising photocatalysts for breaking down organic pollutants, particularly in advancing CQDs-based systems for degrading organic dyes. CQDs, used alone or combined with semiconductors, enhance performance. In scenarios with narrow bandgaps, CQDs assist in separating charges, whereas in wider bandgaps, they enable visible/NIR activity through up-conversion luminescence. When integrated into Z-scheme heterostructures, CQDs reduce recombination by facilitating electron transfer. Synthesis methods—both top-down and bottom-up—are explored along with crucial physicochemical properties. Furthermore, modifying CQDs through doping and integrating functional groups on their surface adjusts their characteristics, promising more effective CQDs-modified photocatalysts in future research.

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作为光催化剂降解有机染料的碳量子点的合成、特性和利用：微型综述

本综述重点介绍碳量子点（CQDs）作为分解有机污染物的光催化剂的前景，尤其是在推进基于 CQDs 的有机染料降解系统方面。CQDs 可单独使用，也可与半导体结合使用，从而提高性能。在带隙较窄的情况下，CQDs 可以帮助分离电荷；而在带隙较宽的情况下，它们可以通过上转换发光实现可见/近红外活性。当 CQDs 集成到 Z 型异质结构中时，可通过促进电子转移来减少重组。我们探讨了自上而下和自下而上的合成方法以及关键的物理化学特性。此外，通过在 CQDs 表面掺杂和整合功能基团来修饰 CQDs 可调整其特性，从而有望在未来的研究中获得更有效的 CQDs 修饰光催化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.