Aqueous-phase detection of antibiotics and nitroaromatic explosives by an alkali-resistant Zn-MOF directed by an ionic liquid

• Published in: RSC advances Vol. 1; no. 3; pp. 1439 - 1446
• Main Authors: Qin, Jian-Hua, Huang, Ya-Dan, Shi, Ming-Yu, Wang, Hua-Rui, Han, Min-Le, Yang, Xiao-Gang, Li, Fei-Fei, Ma, Lu-Fang
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 08-01-2020; The Royal Society of Chemistry
• Subjects: Antibiotics; Chemistry; Crystallography; Explosives; Explosives detection; Fluorescence; Ionic liquids; Ions; Metal-organic frameworks; Molecular orbitals; Nitrophenol; Organic chemistry; Phosphorescence; Pi-electrons; Quenching; Sodium hydroxide
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/c9ra08733h

An alkali-resistant Zn-MOF directed by [BMI]Br ionic liquid, (BMI)
2
[Zn
3
(ptptc)
2
] (
1
), based on a π-electron-rich terphenyl-tetracarboxylic acid, has been synthesized under the combination of hydro/solvothermal and ionothermal condition (BMI = 1-butyl-3-methylimidazolium, H
4
ptptc =
p
-terphenyl-3,3′′,5,5′′-tetracarboxylic acid). In
1
, the trinuclear Zn(
ii
) clusters are linked by the organic moieties of the ptptc ligands, resulting in a 3D anionic framework structure with highly disordered [BMI]
+
cations filled in the pores.
1
exhibits good chemical stability in water and NaOH solutions (pH range of 7-12), which allow it to detect antibiotics and nitroaromatic explosives in an aquatic system.
1
represents high fluorescence quenching efficiency toward NFs (furazolidone, FZD; nitrofurazone, NZF; nitrofurantoin, NFT), NMs (ronidazole, RDZ; metronidazole, MDZ; dimetridazole, DTZ; ornidazole, ODZ) and nitrophenol (2-nitrophenol, 2-NP; 3-nitrophenol, 3-NP; 4-nitrophenol, 4-NP; 2,4,6-trinitrophenol, TNP) in water solution, respectively.
An alkali-resistant 3D anionic Zn-MOF directed by [BMI]Br ionic liquid has been synthesized for aqueous-phase detection of antibiotics and nitroaromatic explosives.