pH-Stable Eu- and Tb-organic-frameworks mediated by an ionic liquid for the aqueous-phase detection of 2,4,6-trinitrophenol (TNP)
pH-Stable Eu- and Tb-organic-frameworks mediated by an ionic liquid for the aqueous-phase detection of 2,4,6-trinitrophenol (TNP)
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由离子液体介导的 pH 稳定的 Eu 和 Tb 有机框架，用于水相检测 2,4,6-三硝基苯酚 (TNP)
DOI：
10.1039/c7dt03433d
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发表时间：
2017
影响因子：
4
通讯作者：
Ma Lu-Fang
中科院分区：
文献类型：
--
作者：
Qin Jian-Hua;Wang Hua-Rui;Han Min-Le;Chang Xin-Hong;Ma Lu-Fang
在水热/溶剂热和离子交换条件下，合成了两种pH稳定的发光金属有机骨架（LMOFs）{[Ln 2（L）2（OH）（HCOO）]·[H2O]}n（Ln = Eu 1，Tb 2）（H2 L = 4′-（4-（3，5-二羧基苯氧基）苯基）-4，2 ′：6′，4 ′′-三联吡啶）. 1和2是同构的，并且特征在于由棒状镧系元素-羧酸盐构建单元构建的非互穿的开放式3D缩合框架。其优异的水稳定性和pH稳定性使其能够用于水生系统。1和2都表现出选择性和灵敏的水相检测众所周知的硝基芳香族爆炸性环境污染物2，4，6-三硝基苯酚（TNP），这是非常可取的实际应用。LMOF颗粒表面上游离吡啶基团的存在被策略性地用于排他性TNP感测的目的。
Two pH-stable luminescent metal–organic frameworks (LMOFs), {[Ln2(L)2(OH)(HCOO)]·[H2O]}n (Ln = Eu 1, Tb 2), based on a new π-conjugated organic building block involving both carboxylate and terpyridine groups were rationally synthesized under a combination of hydro/solvothermal and ionothermal conditions (H2L = 4′-(4-(3,5-dicarboxylphenoxy)phenyl)-4,2′:6′,4′′-terpyridine). 1 and 2 are isostructural and feature noninterpenetrated open 3D condensed frameworks constructed by rod-shaped lanthanide-carboxylate building units. Their excellent water-stability and pH-stability allow them to be used in aquatic systems. 1 and 2 both exhibit selective and sensitive aqueous phase detection of the well-known nitroaromatic explosive environmental pollutant 2,4,6-trinitrophenol (TNP), which is highly desirable for practical applications. The presence of a free pyridine group on the LMOF particle surface was strategically utilized for the purpose of exclusive TNP-sensing.