Coal based carbon dots: recent advances in synthesis, properties, and applications

He, Ziguo, Liu, Shengjun, Zhang, Cheng, Fan, Liyuan, Zhang, Jian, Chen, Qian, Sun, Yudie, He, Lifang, Wang, Zhicai, and Zhang, Kui (2021) Coal based carbon dots: recent advances in synthesis, properties, and applications. Nano Select, 2 (9). pp. 1589-1604.

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Abstract

Carbon dots are zero-dimensional carbon nanomaterials with quantum confinement effects and edge effects, which have aroused great interests in many disciplines such as energy, chemistry, materials, and environmental applications. They can be prepared by chemical oxidation, electrochemical synthesis, hydrothermal preparation, arc discharge, microwave synthesis, template method, and many other methods. However, the raw materials' high cost, the complexity and environmental-unfriendly fabrication process limit their large-scale production and commercialization. Herein, we review the latest developments of coal-based carbon dots about selecting coal-derived energy resources (bituminous coal, anthracite, lignite, coal tar, coke, etc.) the developments of synthesis processes, surface modification, and doping of carbon dots. The coal-based carbon dots exhibit the advantages of unique fluorescence, efficient catalysis, excellent water solubility, low toxicity, inexpensive, good biocompatibility, and other advantages, which hold the potentiality for a wide range of applications such as environmental pollutants sensing, catalyst preparation, chemical analysis, energy storage, and medical imaging technology. This review aims to provide a guidance of finding abundant and cost-effective precursors, green, simple and sustainable production processes to prepare coal-based carbon dots, and make further efforts to exploit the application of carbon dots in broader fields.

Item ID: 71299
Item Type: Article (Research - C1)
ISSN: 2688-4011
Copyright Information: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2021 The Authors. Nano Select published by Wiley-VCH GmbH
Date Deposited: 18 Jan 2022 00:09
FoR Codes: 40 ENGINEERING > 4004 Chemical engineering > 400402 Chemical and thermal processes in energy and combustion @ 30%
40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials @ 35%
40 ENGINEERING > 4018 Nanotechnology > 401807 Nanomaterials @ 35%
SEO Codes: 17 ENERGY > 1702 Energy exploration > 170201 Coal exploration @ 100%
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