Fluorescent probe for detection of formaldehyde based on UiO-66-NH2

被引：14

作者：

Li, Xiaolong ^{[1
]}

Qu, Hongmei ^{[1
]}

Wang, Yanfei ^{[2
]}

Zhang, Xiaokun ^{[1
]}

Bai, Lulu ^{[1
]}

Wang, Zonghao ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn, Minist Educ, Tianjin 300350, Peoples R China

[2] Minist Environm Protect, Solid Waste & Chem Management Technol Ctr, 1 Yuhui South Rd, Beijing 100029, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2023年 / 317卷

关键词：

Formaldehyde (FA); Ultrafast response; Aggregation-induced emission (AIE); Covalent post-synthetic modification (covalent PSM; Fo?rster resonance energy transfer (FRET); UiO-66-NH2; METAL-ORGANIC FRAMEWORKS; AGGREGATION-INDUCED EMISSION; CHROMATOGRAPHIC DETERMINATION; NANOPARTICLES; MECHANISM; ENERGY;

D O I：

10.1016/j.jssc.2022.123672

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Formaldehyde (FA) is a harmful substance commonly found in the environment, so effective testing is essential. Consequently, we designed and synthesized a novel fluorescent probe, which is based on covalent post-synthetic modification (PSM) of UiO-66-NH2 by naphthylamide (NI). The combination of the metal-organic frameworks (MOFs) and the covalent PSM makes the probe with large amount of hydrazine group exposed on the surface, which results excellent FA sensing performance like an ultrafast response time (20 s) and a low detection limit of 0.167 mu M. The presence of covalent bonds can lock the fluorophore and prevent strong pi-pi interactions to exhibit aggregation-induced emission (AIE). Further we confirmed that such probe can be applied to real water samples and portable test strip experiment. In addition, experimental evidence such as fluorescence lifetime decay curves suggest that the main mechanism of fluorescence quenching is Foeurorster resonance energy transfer (FRET).

引用

页数：10

共 56 条

[51] A turn-on fluorescent formaldehyde probe regulated by combinational PET and ICT mechanisms for bioimaging applications [J].