Europium ion post-functionalized zirconium metal–organic frameworks as luminescent probes for effectively sensing hydrazine hydrate

Abstract

A luminescent metal–organic framework have been realized for efficiently sensing hydrazine hydrate.

A New Molecular Recognition Concept: Multiple Hydrogen Bonds and Their Optically Triggered Proton Transfer in Confined Metal–Organic Frameworks for Superior Sensing Element

“…N 2 H 4 is also regarded as the universal fuel in missiles/rocket-propulsion systems due to its flammable and detonable characteristics. , Adversely, however, it is considered as an environmental contaminant and a potential carcinogen; large-scale application of N 2 H 4 can pose a potential threat to the environment and human health . The development of efficient sensors for the hydrazine recognition is thus of great practical importance. , On this basis, ESIPT molecules such as hydroxyphenyl benzothiazole and flavone derivatives have been utilized to design ratiometric fluorescence sensors, including those for hydrazine. , Also, the UiO-66 MOF has been reported for fluorescent hydrazine detection. − However, the synergy of multiple H-bonds, confined space, and ESIPT to maximize the sensing performance has not been reported.…”

A Decade of UiO-66 Research: A Historic Review of Dynamic Structure, Synthesis Mechanisms, and Characterization Techniques of an Archetypal Metal–Organic Framework

“…cobalt-doped UiO-66 nanoparticle 126 high adsorption capacity of tetracycline at 224.1 mg g −1 europium-doped UiO-66 129 highly sensitive sensor that detects hydrazine hydrate at concentrations as low as 0.18 μM in under 90 s europium-doped UiO-66 130 luminescence sensor for Cd 2+ at concentrations as low as 0.22 μM in under 5 min cerium-doped UiO-66/graphene nanocomposites 131 enhanced photocatalytic activity for the reduction of nitroaromatic compounds cerium-doped UiO-66 nanocrystals 132 efficiently remove organic dyes such as methylene blue (145.3 mg g −1 ), methyl orange (639.6 mg g −1 ), and congo red (826.7 mg g −1 ) from aqueous solutions. cerium-doped UiO-66 133 excellent NO 2 adsorption at 95 mg g −1 in dry conditions and 53 mg g −1 in conditions where water is present.…”

Recent advances in film-based fluorescence sensing

“…(3) 分子内电荷转移(ICT), 当识别基团与被分析物结 合后, 会对荧光团的推-拉电子作用产生影响, 从而导 致荧光光谱发生变化 [36,40] . 还有一些机理如荧光内滤 效应(IFE) [41,42] 、激基缔合物的形成 [43] 、配体-金属能 量转移(LMET) [44] 等, 其详细原理本文不再一一赘述. 近年来, 面对高灵敏探测技术的重大需求, 气相传 感器的创制、研发引起了国际社会的重视, 特别是在 美国政府提出的"电子狗鼻计划""真鼻计划""Cell-All" 和"原子到产品"计划等项目的推动下, 相关研究取得 [27] (网络版彩图) .…”