蓝光碳量子点作为荧光探针检测4-硝基苯酚和2-硝基苯酚
增强出版Blue Emitted Carbon Dots as Fluorescent Probes for Detection of 4-nitrophenol and 2-nitrophenol
- 发光学报 2021年42卷第8期 页码：1297-1306
- 作者机构：
1.哈尔滨师范大学化学化工学院 光化学生材料与储能材料黑龙江省重点实验室，黑龙江 哈尔滨 150025
2.北部湾海洋新材料研究院，广西 北海 536015
- 作者简介：
[ "邹宇(1994-)，女，黑龙江齐齐哈尔人，硕士，2021年于哈尔滨师范大学获得硕士学位，主要从事碳点的制备及其对重金属离子和硝基酚类化合物检测的研究。E-mail: 460717575@qq.com" ]
[ "柴芳(1979-)，女，黑龙江东宁人，博士，教授，博士研究生导师，2010年于东北师范大学获得博士学位，主要从事金属纳米材料、荧光金属簇、碳点材料的合成及传感催化性能的研究。E-mail: fangchai@gmail.com" ]
- 基金信息：北海市科技计划项目(202082024)
DOI：10.37188/CJL.20210200
中图分类号：
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邹宇, 唐明宇, 曲姚姚, 等. 蓝光碳量子点作为荧光探针检测4-硝基苯酚和2-硝基苯酚[J]. 发光学报, 2021,42(8):1297-1306.
Yu ZOU, Ming-yu TANG, Yao-yao QU, et al. Blue Emitted Carbon Dots as Fluorescent Probes for Detection of 4-nitrophenol and 2-nitrophenol[J]. Chinese Journal of Luminescence, 2021,42(8):1297-1306.
邹宇, 唐明宇, 曲姚姚, 等. 蓝光碳量子点作为荧光探针检测4-硝基苯酚和2-硝基苯酚[J]. 发光学报, 2021,42(8):1297-1306. DOI： 10.37188/CJL.20210200.
Yu ZOU, Ming-yu TANG, Yao-yao QU, et al. Blue Emitted Carbon Dots as Fluorescent Probes for Detection of 4-nitrophenol and 2-nitrophenol[J]. Chinese Journal of Luminescence, 2021,42(8):1297-1306. DOI： 10.37188/CJL.20210200.
摘要
硝基苯酚被视作严重的污染物，特别是对硝基苯酚(4-NP)和邻硝基苯酚(2-NP)，作为制药工业的重要原料，它们在水中溶解性好、稳定性强，会对环境中的水体造成严重的威胁，因此，检测和监测水体中的4-NP和2-NP至关重要。利用水热法将巯基丁二酸作为碳源，制备出蓝色荧光碳点(MSA-CDs)，在340 nm处激发，碳点在437 nm 得到最佳发射，荧光量子产率为32%，荧光寿命为9.65 ns。在本研究中，蓝色荧光碳点可以作为荧光探针，对4-NP和2-NP有特殊的响应，使碳点的荧光强度发生明显的减弱，检测限分别为18.3 nmol/L和24.0 nmol/L。该碳点可以在实际水样中检测4-NP和2-NP并得到较理想的回收率，说明碳点具备更为广泛的应用优势及可能性。
Abstract
Nitrophenols are regarded as serious pollutants, especially 2-nitrophenol(2-NP) and 4-nitrophenol(4-NP), deriving from processing and manufacturing as well as being used as raw materials for pharmaceutical industry. They have been proved as a crucial threat to environmental waters due to their good solubility, strong stability, high toxicity, and carcinogenicity. Blue fluorescent carbon dots(MSA-CDs) have been prepared by hydrothermal method using mercaptosuccinic acid as carbon resource. The CDs emitted blue fluorescence emission at 437 nm excited at 340 nm, with quantum yield(QY) of 32%. In this work, the CDs exhibited specific responses to 4-NP and 2-NP. CDs can be used as a fluorescent probe, and showed clear fluorescence quenching in presence of 4-NP and 2-NP with the detection limits of 4-NP and 2-NP at 18.3 nmol/L and 24.0 nmol/L, respectively. The CDs can be used to recognize 4-NP and 2-NP in actual water with high recovery, which indicates that the CDs exhibit more extensive application advantages and possibilities.
关键词
蓝色碳点荧光检测硝基苯酚
Keywords
blue carbon dotsfluorescencedetectionexplosive
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