Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P.R. China.
Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P.R. China.
ChemSusChem. 2019 Sep 20;12(18):4202-4210. doi: 10.1002/cssc.201901693. Epub 2019 Aug 19.
Sustainable, inexpensive, and environmentally friendly biomass waste can be exploited for large-scale production of carbon nanomaterials. Here, alkali lignin was employed as a precursor to synthesize carbon quantum dots (CQDs) with bright green fluorescence through a simple one-pot route. The prepared CQDs had a size of 1.5-3.5 nm, were water-dispersible, and showed wonderful biocompatibility, in addition to their excellent photoluminescence and electrocatalysis properties. These high-quality CQDs could be used in a wide range of applications such as metal-ion detection, cell imaging, and electrocatalysis. The wide range of biomass lignin feedstocks provide a green, low-cost, and viable strategy for producing high-quality fluorescent CQDs and enable the conversion of biomass waste into high-value products that promote sustainable development of the economy and human society.
可持续、廉价且环保的生物质废料可用于大规模生产碳纳米材料。在此，我们采用碱木质素作为前体，通过简单的一锅法合成了具有明亮绿色荧光的碳量子点（CQDs）。所制备的 CQDs 的尺寸为 1.5-3.5nm，具有水分散性和良好的生物相容性，同时还具有出色的光致发光和电催化性能。这些高质量的 CQDs 可广泛应用于金属离子检测、细胞成像和电催化等领域。广泛的生物质木质素原料为生产高质量荧光 CQDs 提供了一种绿色、低成本且可行的策略，并使生物质废料转化为高价值产品，从而促进经济和人类社会的可持续发展。
