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首页> 外文期刊>RSC Advances >Multicolor carbon nanodots from food waste and their heavy metal ion detection application
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Multicolor carbon nanodots from food waste and their heavy metal ion detection application

机译：食品垃圾中的多色碳纳米点及其重金属离子检测应用

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Multicolor carbon dots (C-dots) have excellent performance characteristics, high photoluminescence efficiency, ease of fabrication and low toxicity. C-dots have been used in a wide variety of fields including bioimaging, biomedicine, photocatalysis and environmental monitoring. The mass production of multicolor CDs using low-cost, facile methods is an important issue for future industrial applications. In this article, we reported a simple and highly effective way to prepare the multicolor C-dots and use them to detect heavy metal iron ions. Hydrochar acquired from food waste processed with hydrothermal carbonization (HTC) was used as the carbonaceous material for this process. Four colors of C-dots were obtained and included blue, green, yellow and red. These multicolor C-dots could be used as fluorescence probes with unique selectivity to detect the Fe ~(3+) ion. The luminescence response ranged from 1 to 50 μM with a correlation coefficient of 0.9968. This discovery not only shows the high value-added products which can be obtained from food waste but can also lead to new developments in carbonaceous materials which can be used as “green resources”.
机译：多色碳点（C点）具有出色的性能特征，高的光致发光效率，易于制造且毒性低。 C点已在许多领域中使用，包括生物成像，生物医学，光催化和环境监测。使用低成本，简便的方法批量生产多色CD是未来工业应用的重要问题。在本文中，我们报告了一种简单且高效的方法来制备多色C点，并将其用于检测重金属铁离子。从经过热热碳化（HTC）处理的食物垃圾中获取的水炭被用作该过程的碳质材料。获得四种颜色的C点，包括蓝色，绿色，黄色和红色。这些多色C点可以用作荧光探针，具有独特的选择性来检测Fe〜（3+）离子。发光响应范围为1至50μM，相关系数为0.9968。这一发现不仅表明可以从餐厨垃圾中获得高附加值的产品，而且可以引领碳素材料的新发展，这些材料可以用作“绿色资源”。

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