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| Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid |
| Author Name | Affiliation | E-mail | | ZHONG Li'na | College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China | lnzhong@hqu.edu.cn | | CHEN Jingling | College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China | | | ZHAO Qinghua | College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China | |
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| 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 |
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| ZHONG Li'na,CHEN Jingling,ZHAO Qinghua.Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid[J].Chinese Journal of Inorganic Chemistry,2025,41(4):709-718. |
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