Carbon dots-embedded zinc-based metal-organic framework as a dual-emitting platform for metal cation detection

被引：29

作者：

Yang, Jie ^{[1
]}

Ruan, Bo ^{[1
]}

Ye, Qin ^{[1
]}

Tsai, Lung-Chang ^{[2
]}

Ma, Ning ^{[1
]}

Jiang, Tao ^{[1
]}

Tsai, Fang-Chang ^{[1
,2
]}

机构：

[1] Hubei Univ, Collaborat Innovat Ctr Adv Organ Chem Mat Coconst, Sch Mat Sci & Engn,Minist Educ, Hubei Key Lab Polymer Mat,Key Lab Green Preparat, Wuhan 430062, Peoples R China

[2] Huanggang Normal Univ, Hubei Collaborat Innovat Ctr Characterist Resourc, Hubei Key Lab Econ Forest Germplasm Improvement &, Huanggang 438000, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2022年 / 331卷

关键词：

Carbon dots (CDs); Zeolitic imidazolate Framework-8 (ZIF-8); Fluorescent molecular probes; Aggregation caused quenching (ACQ); Heavy metal ions; QUANTUM-DOTS; HYDROTHERMAL TREATMENT; FLUORESCENCE PROBE; IONS; GREEN; COMPOSITE; THERAPY;

D O I：

10.1016/j.micromeso.2021.111630

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Carbon dots (CDs) was synthesized by hydrothermal method using o-phenylenediamine. The fluorescence property can be used for metal ion sensing, but the solid-state aggregation caused quenching (ACQ) is the troublesome problem to develop the potential applications of carbon dots. Here, the metal-organic framework (MOF) as a host is not only used for restraining the ACQ effect of CDs but also can be constructed by the dual-emitting system (CDs@ZIF-8). Furthermore, CDs@ZIF-8 with dual-emitting centers can be utilized for detecting copper ions as a ratio fluorescence sensor. The CDs@ZIF-8 fluorescence sensor shows excellent sensitivity, selectivity and strong environmental suitability for sensing Cu2+ ion with the limit of detection (LOD) for Cu2+ ion is 11.712 mu M. The CDs@ZIF-8 fluorescent probe was successfully applied to detect Cu2+ ions in an aqueous solution. CDs@ZIF-8 shows a new possibility to fabricate fluorescent molecular probes for the determination of heavy metal ions, which is taken on anti-inference in pH, anion and other influence factors.

引用

页数：8

共 40 条

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