硫化氢
荧光
选择性
化学
纳米尺度
材料科学
共价有机骨架
检出限
共价键
无机化学
光化学
纳米技术
有机化学
色谱法
硫黄
催化作用
物理
量子力学
作者
Xuan Ge,Houyong Zhang,Chengxiao Zhang,Mingyue Du
出处
期刊:ChemNanoMat
[Wiley]
日期:2021-03-22
卷期号:7 (5): 530-533
被引量:4
标识
DOI:10.1002/cnma.202100049
摘要
Abstract New strategies for highly selective and sensitive detection of highly toxic environmental pollutants are still a pressing need. Here, through Cu 2+ metalated porous nanoscale covalent organic framework (NCOF), a novel heterogeneous NCOF fluorescence probe has been synthesized for sensitive and selectivity detection of hydrogen sulfide (H 2 S). Upon H 2 S addition, the Cu 2+ released from the CuCOF, accompanied by the fluorescence recovered of COF. As far as we know, NCOF has not been reported as fluorescence probe for H 2 S detection. The as‐prepared nano CuCOF displays an excellent sensitive response to H 2 S with a detection limit of 10 nM. In addition, such heterogeneous fluorescence probe exhibited high selectivity towards to H 2 S relative to other thiols and anionic species. Moreover, the detection of H 2 S was achieved successfully in different actual water samples.
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