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Colorimetric Determination of Chloridion in Domestic Water Based on the wavelength shift of CsPbBr_(3) Perovskite Nanocrystals via Halide Exchange

引用

Journal of Analysis and Testing 2021年第1期5卷 3-10页

作者： Guo-Bin Huang Zhi-Yong Guo Ting-Xiu Ye Chen Zhang Yan-Mei Zhou Qiu-Hong Yao Xi Chen Institute of Analytical Technology and Smart Instruments and Colleague of Environment and Public Healthy Xiamen Huaxia UniversityXiamen 361024China College of Pharmacy Xiamen Medical CollegeXiamen 361023China College of Chemistry Chemical Engineering and EnvironmentMinnan Normal UniversityZhangzhou 363000China Xiamen Key Laboratory of Food and Drug Safety Xiamen Huaxia UniversityXiamen 361005China State Key Laboratory of Marine Environmental Science Xiamen UniversityXiamen 361024China

Cubic phase CsPbBr_(3)perovskite nanocrystals(PNCs)was prepared by a high-temperature hot-injection *** high photoluminescence quantum yield(PLQY)of as-prepared CsPbBr_(3)PNCs was 87%,which can be used for the determination of chloridion in domestic water samples based on their wavelength-shift characteristics via halide *** proposal approach for the determination of chloridion reveals a linear correlation ranged from 10 to 200μM of the chloridion concentration and the wavelength shift of CsPbBr_(3)PNCs with a correlation coe fficient of R^(2)=*** as-mentioned method reveals neglectable responses towards those co-existing ions in the water aside from chloridion,due to the quick exchange between Cl and Br and the outstanding color change caused by wavelength *** strategy has been applied to the determination of chloridion in water samples with the recoveries of 98.9–104.2%and the limit of detection(LOD)of 4μ*** results show that the suggested approach is promising for the development of novel fluorescence detection for chloridion in water.

关键词： CsPbBr_(3) Perovskite nanocrystals wavelength shift Chloridion

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