Luminescent porous organic polymer nanotubes for highly selective sensing of H2S,Materials Chemistry Frontiers

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Luminescent porous organic polymer nanotubes for highly selective sensing of H2S
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2017-10-11 00:00:00 , DOI: 10.1039/c7qm00423k
Lin Guo _{1,

2,

3,

4} , Meng Wang _{1,

2,

3,

4} , Xiaofei Zeng _{1,

2,

3,

4} , Dapeng Cao _{1,

2,

3,

4,

5}

Affiliation

In this study, we synthesize a luminescent porous organic polymer nanotube (PNT-1) through copolymerization of the monomers 1,3,5-tris-(3-bromo-phenyl)-[1,3,5]triazine (TBT) and 2,6-dibromopyridine (2,6-DP) by Ni-catalyzed Yamamoto reaction. Results indicate that PNT-1 exhibits high luminescence intensity, stability and reusability, and it can be used as an efficient luminescent probe for sensitively and selectively sensing H₂S. Furthermore, we also use UV-absorption as well as EDS and XPS spectra to further explore the luminescence quenching mechanism of PNT-1 as a luminescent probe for sensing H₂S. All the results reveal that the formation of N–S bond between PNT-1 and H₂S makes the electron in PNT-1 more stable and therefore leads to the luminescence quenching effect of PNT-1 for sensing H₂S. Moreover, we also find that PNT-1 as a luminescent probe is still applicable for sensing H₂S in vitro assay system simulated using PBS buffer solution.

中文翻译：

高选择性感测H ₂ S的发光多孔有机聚合物纳米管

在这项研究中，我们通过单体1,3,5-三（3-溴-苯基）-[1,3,5]三嗪（TBT）和Ni催化的Yamamoto反应生成2,6-二溴吡啶（2,6-DP）。结果表明，PNT-1具有较高的发光强度，稳定性和可重复使用性，可作为敏感和选择性感测H ₂ S的高效发光探针。此外，我们还使用紫外线吸收以及EDS和XPS光谱对进一步探索了作为检测H ₂ S的发光探针的PNT-1的发光猝灭机理。所有结果表明，PNT-1和H ₂之间形成了N–S键。S使PNT-1中的电子更稳定，因此导致PNT-1感测H ₂ S的发光猝灭效果。此外，我们还发现PNT-1作为发光探针仍适用于感测H ₂ S中的H 2S 。使用PBS缓冲溶液模拟的体外测定系统。

更新日期：2017-10-25

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