Abstract Herein, we present a facile low-cost and eco-friendly approach for conversion of bamboo timber waste (Bf) derived cellulose nanocrystals (Bf-CNCs) into strong blue luminescent graphene quantum dots (Bf-GQDs) by hydrothermal route. The various properties of synthesized Bf-GQDs were investigated using different spectroscopic techniques. The probable mechanism of Bf-GQDs formation from Bf-CNCs and the effect of pH, particle size on the fluorescent properties of Bf-GQDs also executed. Furthermore, Bf-GQDs were used for the detection of curcumin in an aqueous environment which is the major prerequisite of the present study. The Bf-GQDs showed remarkable photoluminescence (PL) quenching kinetics toward the curcumin (LOD 30.0 nM L−1) assessed by Stern-Volmer plot. The practicability of the method assessed using ginger rhizome juice, while the selectivity of the Bf-GQDs evaluated against different metal ions and different biochemicals. The proposed method will support to establish the strategies for the detection of biochemicals from the aqueous system.

中文翻译：

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荧光石墨烯量子点的绿色合成及其在选择性姜黄素检测中的应用

摘要在此，我们提出了一种简便的低成本和环保方法，通过水热途径将竹材废料 (Bf) 衍生的纤维素纳米晶体 (Bf-CNCs) 转化为强蓝色发光石墨烯量子点 (Bf-GQDs)。使用不同的光谱技术研究了合成的 Bf-GQD 的各种性质。Bf-CNCs 形成 Bf-GQDs 的可能机制以及 pH 值、粒径对 Bf-GQDs 荧光特性的影响也得到了执行。此外，Bf-GQD 用于检测水性环境中的姜黄素，这是本研究的主要先决条件。Bf-GQD 对姜黄素 (LOD 30.0 nML-1) 显示出显着的光致发光 (PL) 猝灭动力学，由 Stern-Volmer 图评估。以姜根汁评估该方法的实用性，而 Bf-GQDs 的选择性针对不同的金属离子和不同的生化物质进行了评估。所提出的方法将支持建立从水系统中检测生化物质的策略。