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Molecularly imprinted polymer coated Mn-doped ZnS quantum dots embedded in a metal-organic framework as a probe for selective room temperature phosphorescence detection of chlorpyrifos

文献类型：期刊论文

作者Fan, Mengxi1,2; Gan, Tingting3,4; Yin, Gaofang3,4; Cheng, Fangbeibei5; Zhao, Nanjing1,2,3,4
刊名RSC ADVANCES
出版日期2021-08-31
卷号11
DOI10.1039/d1ra05537b
通讯作者Gan, Tingting(ttgan@aiofm.ac.cn) ; Zhao, Nanjing(njzhao@aiofm.ac.cn)
英文摘要As one of the most widely used organophosphorus pesticides, chlorpyrifos (CPF) is toxic to humans. However, the rapid, effective and sensitive detection of CPF is still a challenge. In this paper, a novel molecularly imprinted phosphorescent sensor with a core-shell structure (Mn:ZnS QDs@ZIF-8@MIP) using Mn:ZnS quantum dots (QDs) as phosphorescent emitters was prepared for the highly sensitive and selective detection of CPF, and a simple and rapid room-temperature phosphorescence (RTP) detection method for CPF was proposed. For the prepared Mn:ZnS QDs@ZIF-8@MIP, Mn:ZnS QDs had good phosphorescence emission characteristics, ZIF-8 as support materials was used to improve the dispersibility of Mn:ZnS QDs, and molecularly imprinted polymer (MIP) on the surface of ZIF-8 was used to improve the selectivity of Mn:ZnS QDs for CPF. Under the optimal response conditions, the RTP intensity of Mn:ZnS QDs@ZIF-8@MIP showed a rapid response to CPF (less than 5 min), the RTP intensity ratio of P-0/P had a good linear relationship with the concentration of CPF in the range of 0-80 mu M, and the detection limit of this method was 0.89 mu M with the correlation coefficient of 0.99. Moreover, this simple and rapid method has been successfully used to detect CPF in real water samples with satisfactory results, and the recoveries ranged from 92% to 105% with a relative standard deviation of less than 1%. This method combines the advantages of phosphorescence emission and molecular imprinting, and greatly reduces the potential interferences of competitive substances, background fluorescence and scattered light, which opens up a broad prospect for the highly sensitive and selective detection of pollutants in water based on molecularly imprinted phosphorescent sensors.
WOS关键词SOLID-PHASE EXTRACTION ; ORGANOPHOSPHORUS PESTICIDES ; MASS SPECTROMETRY ; CARBON DOTS ; NANOPARTICLES ; MICROEXTRACTION ; SURFACE
资助项目National Natural Science Foundation of China[61805254] ; Chinese Academy of Sciences Instrument and Equipment Function Development Technology Innovation Project[Y93H3g1251] ; National Key Research and Development Program of China[2016YFC1400602] ; Dean Fund of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJ201606]
WOS研究方向Chemistry
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000694655300010
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences Instrument and Equipment Function Development Technology Innovation Project ; National Key Research and Development Program of China ; Dean Fund of Hefei Institutes of Physical Science, Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/125279]  
专题中国科学院合肥物质科学研究院
通讯作者Gan, Tingting; Zhao, Nanjing
作者单位1.Anhui Univ, Inst Phys Sci, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Anhui, Peoples R China
2.Anhui Univ, Inst Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Anhui, Peoples R China
3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, 350 Shu Shan Hu Rd, Hefei 230031, Anhui, Peoples R China
4.Key Lab Opt Monitoring Technol Environm, Hefei 230021, Anhui, Peoples R China
5.Hefei Univ, Hefei 230601, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Fan, Mengxi,Gan, Tingting,Yin, Gaofang,et al. Molecularly imprinted polymer coated Mn-doped ZnS quantum dots embedded in a metal-organic framework as a probe for selective room temperature phosphorescence detection of chlorpyrifos[J]. RSC ADVANCES,2021,11.
APA Fan, Mengxi,Gan, Tingting,Yin, Gaofang,Cheng, Fangbeibei,&Zhao, Nanjing.(2021).Molecularly imprinted polymer coated Mn-doped ZnS quantum dots embedded in a metal-organic framework as a probe for selective room temperature phosphorescence detection of chlorpyrifos.RSC ADVANCES,11.
MLA Fan, Mengxi,et al."Molecularly imprinted polymer coated Mn-doped ZnS quantum dots embedded in a metal-organic framework as a probe for selective room temperature phosphorescence detection of chlorpyrifos".RSC ADVANCES 11(2021).

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来源：合肥物质科学研究院

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