Citation: Ying CHENG, Yi-Bing LIU, Hui-Yao ZHAO, Xin-Da NAN, Xiao-Qing FAN, Sheng-Ling LI, Li-Feng DING, Qi WANG, Yu-Lan NIU. Construction of MnO₂ nanoparticles mediated UV-visible absorption-fluorescence dual channel sensor and detection of D-penicillamine[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(4): 617-626. doi: 10.11862/CJIC.2023.032 shu

Construction of MnO₂ nanoparticles mediated UV-visible absorption-fluorescence dual channel sensor and detection of D-penicillamine

1.
Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan 030008, China
2.
Zhejiang Province Quzhou City Longyou Country Inspection and Testing Institute, Quzhou, Zhejiang 324400, China

Corresponding author: Li-Feng DING, happydlf@163.com Qi WANG, wangq@tit.edu.cn
Received Date: 13 August 2022
Revised Date: 5 February 2023

Figures(8)

In this work, manganese dioxide nanoparticles (MnO₂ NPs) were synthesized through a in situ redox reaction using polyethyleneimine (PEI) as both template and reductant. The morphology, composition, UV-visible absorption, and catalytic oxidation performance of MnO₂ NPs were characterized. MnO₂ NPs possessed the characteristic of catalytic oxidation of o-phenylenediamine (OPD) to 2, 3-diaminophenazine (DAP), producing the UV-visible absorption at 420 nm and fluorescence emission at 560 nm. Owing to its active sulfhydryl, D-penicillamine (DPA) could decompose MnO₂ NPs through a unique redox reaction. Therefore, the catalytic oxidation activity was inhibited that made UV-visible absorption-fluorescence signals decreased and even disappeared. Based on the relationship between spectral variation and DPA concentration, a MnO₂ NPs mediated UV-visible absorption-fluorescence dual channel sensing method for DPA was established. Fluorescence channel sensing possessed satisfactory linear range and sensitivity. The linear range was 1-80 μmol·L^-1 with a detection limit of 0.54 μmol·L^-1. Moreover, MnO₂ NPs mediated fluorescence sensing was applied in human urine sample detection and the recovery was in a range of 98.31%-107.76%, which proved the reliability of this method.
- MnO₂ nanoparticles,
- UV-visible,
- fluorescence,
- D-penicillamine
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Construction of MnO2 nanoparticles mediated UV-visible absorption-fluorescence dual channel sensor and detection of D-penicillamine

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通讯作者: 陈斌, bchen63@163.com

Construction of MnO₂ nanoparticles mediated UV-visible absorption-fluorescence dual channel sensor and detection of D-penicillamine