| 石墨烯量子点对对苯二酚的检测 |
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| 引用本文： | 刘鹏超,孙向英,杨传孝. 石墨烯量子点对对苯二酚的检测[J]. 华侨大学学报(自然科学版), 2014, 0(5): 547-551. DOI: 10.11830/ISSN.1000-5013.2014.05.0547 |
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| 作者姓名： | 刘鹏超 孙向英 杨传孝 |
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| 作者单位： | 华侨大学 材料科学与工程学院, 福建 厦门 361021 |
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| 基金项目： | 国家自然科学基金资助项目(21275059，21175049)；福建省自然科学基金资助项目 |
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| 摘 要： | 以柠檬酸为碳源,采用一步熔融法制备了石墨烯量子点,通过红外光谱、紫外-可见吸收光谱、荧光光谱对其光学性能进行表征,同时考察了石墨烯量子点耐光漂白能力和抗盐性. 该石墨烯量子点可应用于对苯二酚的检测,其荧光强度与对苯二酚浓度成良好的线性关系(R2=0.979),方法的检测限为3.1 nmol·L-1, 线性范围为1.0×10-7~5.0×10-6 mol·L-1.
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| 关 键 词： | 石墨烯量子点 对苯二酚 柠檬酸 熔融法 荧光检测 |
Detection of Hydroquinone by Graphene Quantum Dots |
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| LIU Peng chao,SUN Xiang ying,YANG Chuan xiao. Detection of Hydroquinone by Graphene Quantum Dots[J]. Journal of Huaqiao University(Natural Science), 2014, 0(5): 547-551. DOI: 10.11830/ISSN.1000-5013.2014.05.0547 |
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| Authors: | LIU Peng chao SUN Xiang ying YANG Chuan xiao |
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| Affiliation: | College of Material Science and Engineering, Huaqiao University, Xiamen 361021, China |
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| Abstract: | With citric acid as carbon source, graphene quantum dots was prepared by one-step melting method. The spectral properties of the graphene quantum dots was characterized by FTIR, UV-visible absorption spectra and fluorescence spectra. In addition, its ability of light bleaching and salt resistance were investigated. Then, the graphene quantum dots was used for the detection of hydroquinone by a fluorescent sensor. The fluorescence intensity of graphene quantum dots and the concentration of hydroquinone exhibited a good linear relationship(R2=0.979)with a wide concentrations range of 1.0×10-7~5.0×10-6 mol·L-1 as well as the limit of detection was calculated to be 3.1 nmol·L-1. |
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| Keywords: | graphene quantum dots hydroquinone citric acid melting method fluorescence detection |
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