尿素-氯化胆碱深共晶溶剂辅助合成几丁质发光氮掺杂碳点及其光催化脱色孔雀石绿的应用

IF 1.1 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Hannah Valencia, A. Yeboah, Steve Turita, Kyle Joshua Muñoz, Arnold C. Gaje, Chenille Rose Siva, M. F. Paige, Concepcion P. Ponce
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引用次数: 0

摘要

发光碳点(CDs)是一种新兴的碳纳米材料,其可调谐和卓越的光电性能已被用作传统荧光团和金属基催化剂的替代品。此外,它们可以很容易地从生物质和使用绿色溶剂制备。然而,CDs的生物质来源往往导致形成数千种难以分离的产品。本研究以氯化脲-胆碱深度共熔溶剂(DES)和虾壳衍生几丁质为原料,通过低温溶剂热处理合成了CDs。然后用丙酮进行简单的液-液萃取,以改善CDs的光学性质并缩小其尺寸分布。丙酮萃取CDs (ACDs)对水中污染物孔雀石绿具有良好的光催化降解性能。通过选定的农药、抗生素、重金属和阴离子对ACDs荧光的猝灭作用,它们在监测各种有毒水污染物方面也显示出良好的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Urea-choline chloride deep eutectic solvent-assisted synthesis of luminescent nitrogen-doped carbon dots from chitin and their photocatalytic application in decolourizing malachite green
Luminescent carbon dots (CDs) are emerging carbon nanomaterials whose tunable and exceptional optoelectronic properties have found applications as alternatives to traditional fluorophores and metal-based catalysts. Further, they can be easily prepared from biomass and using green solvents. Biomass sources of CDs, however, often result in the formation of thousands of products which are difficult to separate. In this study, CDs were synthesized using a urea-choline chloride deep eutectic solvent (DES) and shrimp shell-derived chitin as raw materials through a low temperature solvothermal treatment. This was followed by a facile liquid-liquid extraction with acetone to improve the optical properties and narrow the size distribution of the CDs. The acetone-extracted CDs (ACDs) showed good performance in photocatalytic degradation of the aquatic pollutant, malachite green. They also show good potential in monitoring various toxic water pollutants through the quenching effect of selected pesticides, antibiotics, heavy metals and anions on the fluorescence of ACDs.
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来源期刊
Canadian Journal of Chemistry
Canadian Journal of Chemistry 化学-化学综合
CiteScore
1.90
自引率
9.10%
发文量
99
审稿时长
1 months
期刊介绍: Published since 1929, the Canadian Journal of Chemistry reports current research findings in all branches of chemistry. It includes the traditional areas of analytical, inorganic, organic, and physical-theoretical chemistry and newer interdisciplinary areas such as materials science, spectroscopy, chemical physics, and biological, medicinal and environmental chemistry. Articles describing original research are welcomed.
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