Synthesis of luminescent Cu9S5 nanoclusters from copper-2,5-dimercapto-1,3,4-thiadiazole coordination polymer as pH sensor

被引：23
|
作者：
Cheng, Yong [1 ]
Deng, Shouyong [1 ]
Sun, Feifei [1 ]
Zhou, Ying-Hua [1 ]
机构：
[1] Anhui Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Mol Solids,Minist Educ, Anhui Lab Mol Based Mat,State Key Lab Cultivat Ba, Wuhu 241002, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2019年 / 210卷
基金：
中国国家自然科学基金;
关键词：
Luminescence; Copper sulfide; Nanoclusters; pH Sensor; THIN-FILM; TEMPERATURE SYNTHESIS; QUANTUM-DOTS; COPPER; SULFIDE; NANOCRYSTALS; CU1.8S; 1,3,4-THIADIAZOLE-2,5-DITHIOL; NANOTUBES; COMPLEXES;
D O I：
10.1016/j.jlumin.2019.02.014
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Cu9S5 nanoclusters (Cu9S5 NCs) with photoluminescence emission in the visible region have been synthesized via a simple treatment of copper-2, 5-dimercapto-1, 3, 4-thiadiazole (Cu(II)-DMTD) coordination polymer with ammonium hydroxide. This procedure involves a desulfurative C-N cross-coupling route, in which one mercapto group was replaced by amine, resulting in 2-mercapto-5-amine-1,3,4-thiadiazole (AMTD) as protecting agent for Cu9S5 NCs. The product exhibits a fluorescence emission at 567 nm with a quantum yield (Phi) 0.068. The as-prepared Cu9S5 NCs were employed as a broad-range pH sensor by virtue of the fluorescence intensity responding sensitively to pH fluctuating in a linear range of 3.0-10.0.
引用
收藏
页码：38 / 46
页数：9
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