氯化胆碱
化学
孔雀绿
光催化
深共晶溶剂
碳纤维
无机化学
共晶体系
催化作用
有机化学
材料科学
合金
复合数
吸附
复合材料
作者
Hannah Valencia,Alfred Yeboah,Steve Turita,Kyle Joshua Muñoz,Arnold C. Gaje,Chenille Rose Siva,Matthew F. Paige,Concepcion P. Ponce
标识
DOI:10.1139/cjc-2023-0016
摘要
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 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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