A reaction-based luminescent switch-on sensor for the detection of OH- ions in simulated wastewater

被引：28
作者：
Wu, Chun [1 ]
Vellaisamy, Kasipandi [1 ]
Yang, Guanjun [2 ]
Dong, Zhen-Zhen [1 ]
Leung, Chung-Hang [2 ]
Liu, Jin-Biao [1 ,3 ]
Ma, Dik-Lung [1 ]
机构：
[1] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China
[2] Univ Macau, Inst Chinese Med Sci, State Key Lab Qual Res Chinese Med, Macau, Peoples R China
[3] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou, Peoples R China
来源：
DALTON TRANSACTIONS | 2017年 / 46卷 / 20期
基金：
中国国家自然科学基金;
关键词：
FLUORESCENT PH PROBE; LIVING CELLS; IRIDIUM(III) COMPLEXES; ACIDIC CONDITIONS; LIVE CELLS; IN-VIVO; AGGREGATION; LYSOSOMES; INHIBITOR; HYPOXIA;
D O I：
10.1039/c7dt00633k
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A series of luminescent iridium(III) complexes were synthesized and evaluated for their ability to interact with hydroxide ions in semi-aqueous media at ambient temperature. Upon the addition of OH-, a nucleophilic aromatic substitution reaction takes place at the bromine groups of the N<^>N ligand of complex 1, resulting in the generation of a yellow-green luminescence. Complex 1 showed a 35-fold enhanced emission at pH 14 when compared to neutral pH, and the detection limit for OH- ions was 4.96 mu M. Complex 1 exhibited high sensitivity and selectivity, long-lived luminescence and impressive stability. Additionally, we have demonstrated the practical application of complex 1 to detect OH- ions in simulated wastewater.
引用
收藏
页码：6677 / 6682
页数：6
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