Facile and low-energy-consumption synthesis of dual-functional carbon dots from Cornus walteri leaves for detection of p-nitrophenol and photocatalytic degradation of dyes
Facile and low-energy-consumption synthesis of dual-functional carbon dots from Cornus walteri leaves for detection of p-nitrophenol and photocatalytic degradation of dyes
复制标题
简便、低能耗地合成山茱萸叶双功能碳点，用于检测对硝基苯酚和光催化降解染料
DOI：
10.1016/j.colsurfa.2022.128351
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发表时间：
2022-01
期刊：
影响因子：
--
通讯作者：
Weilin Zhao
中科院分区：
文献类型：
--
作者：
Congling Wang;Jun Xu;Ruili Zhang;Weilin Zhao
以山茱萸树叶为原料，采用低温水热法制备绿色碳量子点（G-CD）。该合成方法具有成本低、环境友好、可再生等优点。值得注意的是，所制备的G-CD显示出优异的荧光性能，量子产率（QY）高达18.3%。G-CD对p-NP表现出快速、选择性和灵敏的响应，这使得它们有希望用于p-NP传感。线性范围为0-50 μM，LOD低至0.0175 μM。经过仔细的研究，静态猝灭被用来解释荧光机制。此外，G-CDs可作为一种快速、高效的光催化剂降解有机染料孔雀石绿色（MG）、橙子（MO）和甲基紫（MV）。在40 min、50 min和90 min的辐照条件下，降解率分别达到98.0%、97.1%和63.6%。
An attempt for sustainable preparation of green-emitting carbon dots (G-CDs) is made from Cornus walteri leaves through low-temperature hydrothermal treatment. This synthetic approach is low cost, environmental friendliness, and renewability. Significantly, the as-fabricated G-CDs show outstanding fluorescence properties, and the quantum yield (QY) is as high as 18.3%. The G-CDs exhibit a rapid, selective and sensitive response to p-NP, which makes them promising for p-NP sensing. The linearity is in the range of 0–50 μM, and the LOD is as low as 0.0175 μM. Following careful investigations, static quenching was used to explain the fluorescence mechanism. In addition, G-CDs can be regarded as a fast and efficient photocatalyst for the degradation of organic dyes malachite green (MG), methyl orange (MO), and methyl violet (MV). Under the irradiation conditions of 40 min, 50 min, and 90 min, the degradation rates can reach ~98.0%, ~97.1%,and ~63.6%, respectively.
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影响因子：
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作者：
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DOI：
10.1016/j.apcatb.2019.02.019
发表时间：
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期刊：
Applied catalysis. B, Environmental
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