Fluorometric sensing of oxygen using manganese(II)-doped zinc sulfide nanocrystals

被引：6
|
作者：
Lin, Fangyuan [1 ,2 ]
Lai, Zhiwei [1 ,2 ]
Zhang, Linchun [1 ,2 ]
Huang, Yipeng [1 ,2 ]
Li, Feiming [1 ,2 ]
Chen, Pingyun [3 ]
Wang, Yiru [1 ,2 ]
Chen, Xi [1 ,2 ,4 ,5 ]
机构：
[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
[2] Xiamen Univ, MOE Key Lab Spectrochem Anal & Instrumentat, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
[3] Natl Qual Supervis & Inspect Ctr Incense Prod Fuj, Quanzhou 362600, Fujian, Peoples R China
[4] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China
[5] Xiamen Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
来源：
MICROCHIMICA ACTA | 2020年 / 187卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Semiconductor nanocrystals; Dual-emission fluorescence; Trap state; Surface luminescence centers; Inherent sensing characteristic; Oxygen gas; Dissolved oxygen; CHEMICAL-VAPOR-DEPOSITION; QUANTUM DOTS; MERCAPTOPROPIONIC ACID; OPTICAL-PROPERTIES; TURN-ON; SENSOR; WATER; PHOTOLUMINESCENCE; ASSEMBLIES;
D O I：
10.1007/s00604-019-4056-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Manganese(II)-doped zinc sulfide nanocrystals (Mn:ZnS NCs) with dual-emission fluorescence (peaks at 445 nm and 590 nm under 330 nm excitation), good water stability and low toxicity were synthesized by hot injection. The fluorescence intensity of both emission bands of the nanocrystals can change rapidly by the content of gaseous and dissolved oxygen. The process is fully reversible. Compared with the maximum intensity of Mn:ZnS sensing film in 100% nitrogen, the emission of the blue emission decreases by 72% in the presence of 100% oxygen, and the yellow emission by 32%. Response is linear in the presence of 3% to 12% of oxygen percentage in gas. For water-dissolved oxygen, the linear response occurs between 0.54 and 11.4 mg.L-1.
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页数：9
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