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Facile Fluorescent Differentiation of Aminophenol Isomers Based on Ce-Doped Carbon Dots
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-06-08 , DOI: 10.1021/acssuschemeng.1c01303 Dandan Zhao 1 , Yijun Huang 1 , Bingfang Shi 1 , Suping Li 1 , Shulin Zhao 2
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-06-08 , DOI: 10.1021/acssuschemeng.1c01303 Dandan Zhao 1 , Yijun Huang 1 , Bingfang Shi 1 , Suping Li 1 , Shulin Zhao 2
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Establishing a facile distinction protocol for isomers is still imminently desired. However, the use of a fluorescent probe to differentiate between aminophenol isomers is rarely reported. Herein, we propose a novel fluorescent strategy, based on cerium-doped carbon dots (Ce-CDs), for the convenient differentiation and sensitive monitoring of aminophenol isomers. The Ce-CDs were synthesized through a facile hydrothermal approach using Dendrobium officinale and Ce(NH4)2(NO3)6 as raw materials; the Ce-CDs possessed sufficient stability and excellent peroxidase-like activity. The synthesized Ce-CDs can catalyze the H2O2-mediated oxidation of aminophenol isomers resulting in different fluorescence behaviors, which is convenient for distinction of the aminophenol isomers. Notably, the Ce-CD-based fluorescent sensor was highly selective and sensitive for determining o-aminophenol (OAP) and m-aminophenol (MAP) with a low detection limit of 0.033 μM, respectively. The fluorescent method was successfully applied to monitor the presence of MAP and OAP in real water samples, which illustrated its significant potential for application in other environmental assays.
中文翻译：
基于 Ce 掺杂碳点的氨基苯酚异构体的轻松荧光区分
仍然迫切需要为异构体建立一个简单的区分协议。然而，很少有报道使用荧光探针来区分氨基苯酚异构体。在此，我们提出了一种基于掺铈碳点 (Ce-CD) 的新型荧光策略，以方便区分和灵敏监测氨基苯酚异构体。以铁皮石斛和Ce(NH 4 ) 2 (NO 3 ) 6为原料，通过简便的水热法合成了Ce-CDs ；Ce-CDs具有足够的稳定性和优异的过氧化物酶样活性。合成的 Ce-CDs 可以催化 H 2 O 2-介导的氨基酚异构体氧化导致不同的荧光行为，便于区分氨基酚异构体。值得注意的是，基于Ce的荧光CD传感器是高度选择性的和敏感的，用于确定ø氨基苯酚（OAP）和米分别氨基苯酚（MAP）与0.033μM的低检测限。该荧光方法已成功应用于监测真实水样中 MAP 和 OAP 的存在，这表明其在其他环境检测中的应用潜力巨大。
更新日期：2021-06-21
中文翻译：
基于 Ce 掺杂碳点的氨基苯酚异构体的轻松荧光区分
仍然迫切需要为异构体建立一个简单的区分协议。然而，很少有报道使用荧光探针来区分氨基苯酚异构体。在此，我们提出了一种基于掺铈碳点 (Ce-CD) 的新型荧光策略，以方便区分和灵敏监测氨基苯酚异构体。以铁皮石斛和Ce(NH 4 ) 2 (NO 3 ) 6为原料，通过简便的水热法合成了Ce-CDs ；Ce-CDs具有足够的稳定性和优异的过氧化物酶样活性。合成的 Ce-CDs 可以催化 H 2 O 2-介导的氨基酚异构体氧化导致不同的荧光行为，便于区分氨基酚异构体。值得注意的是，基于Ce的荧光CD传感器是高度选择性的和敏感的，用于确定ø氨基苯酚（OAP）和米分别氨基苯酚（MAP）与0.033μM的低检测限。该荧光方法已成功应用于监测真实水样中 MAP 和 OAP 的存在，这表明其在其他环境检测中的应用潜力巨大。
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