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首页> 外文期刊>Journal of King Saud University >Fabrication of fluorescent carbon nanodots from laboratory paper waste for Fe 3+ ions detection
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Fabrication of fluorescent carbon nanodots from laboratory paper waste for Fe 3+ ions detection

机译：Fe 3 + 离子检测

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In this study, we fabricated non-toxic, highly stable, eco-friendly carbon nanodots (CD) from laboratory paper waste through a facile synthetic approach. The paper waste was converted to carbon by thermal decomposition. The carbon powder obtained was dispersed in acid using a sonication process. Subsequently, the CD was separated by centrifugation and filtration. The morphological properties of the prepared CD were analyzed using atomic force microscopy (AFM). The optical behavior of the CD was assessed using a UV–vis and fluorescence spectrophotometer. The AFM results clearly indicated that the CD had a spherical shape and sizes of ～3–10?nm. The CD exhibited excitation-dependent photoluminescence. Finally, we assessed the metal ion selectivity of the paper waste derived CD, and utilized it as a fluorescent probe to detect Fe3+ions. This CD fabrication approach is sustainable, cheap, and uses a renewable precursor. It also may enable the valorization of laboratory paper waste to high-value products.
机译：在这项研究中，我们通过容易的合成方法制造了从实验室纸废物的无毒，高度稳定的环保碳纳米蛋白（CD）。通过热分解将纸废物转化为碳。使用超声处理方法将所得碳粉分散在酸中。随后，通过离心和过滤分离CD。使用原子力显微镜（AFM）分析制备的CD的形态学性质。使用UV-Vis和荧光分光光度计评估CD的光学行为。 AFM结果清楚地表明CD具有球形形状和尺寸为3-10纳米。 CD表现出激发依赖性的光致发光。最后，我们评估了纸废物衍生Cd的金属离子选择性，并用作检测Fe3 +离子的荧光探针。这种CD制造方法是可持续的，便宜的，并使用可再生前体。它还可以使实验室纸浪费的算入高价值产品。

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