| 绿色碳源合成多响应碳量子点用于铁离子和L-抗坏血酸的检测 |
| Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid |
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| 摘要: 以生物质橙子皮为原料，通过简单的一步水热法制备了橙子皮基碳量子点(orange peel-based carbon quantum dots，OP-CQDs)，并用荧光分析法对其性质进行了研究。结果表明，OP-CQDs水溶性好、荧光强、在生理pH范围内性能稳定。OP-CQDs对铁离子(Fe3+)有特异性猝灭反应且灵敏度高，同时，L-抗坏血酸(L-ascorbic acid，L-AA)能够使OP-CQDs-Fe3+体系的荧光部分恢复，形成了“开-关-开”的荧光检测体系。Fe3+和L-AA的检出限分别为1.1和31.8 μmol·L-1。 |
| 关键词: 碳量子点 荧光分析法 绿色碳源 铁离子 L-抗坏血酸 |
| 基金项目: 2021年福建省高校产学合作项目(No.2021H6027)和2023年厦门市重点科技计划项目(No.3502Z20234025)资助。 |
| Abstract: Orange peel-based carbon quantum dots (OP-CQDs) were prepared by a simple one-step hydrothermal method. The properties of OP-CQDs were studied through fluorescence analysis. The results show that OP-CQDs have good water solubility, strong fluorescence, and stable performance in the physiological pH range. OP-CQDs exhibit a specific quenching reaction towards iron ions (Fe3+) with high sensitivity. At the same time, L-ascorbic acid (L-AA) can partially restore the fluorescence of the OP-CQDs-Fe3+ system to form an“on-off-on”fluorescence detection system. The detection limits of Fe3+ and L-AA were 1.1 and 31.8 μmol·L-1, respectively. |
| Keywords: carbon quantum dot fluorescent analysis green carbon source iron ion L-ascorbic acid |
| 投稿时间：2024-07-24 修订日期：2025-01-19 |
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| 钟丽娜,陈晶玲,赵青华.绿色碳源合成多响应碳量子点用于铁离子和L-抗坏血酸的检测[J].无机化学学报,2025,41(4):709-718. |
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