Triazine Based MOFs with Abundant N Sites for Selective Nitrobenzene Detection

Abstract

High sensitivity and selectivity detection of nitrobenzene based on luminescence technology requires high density of functional sites. Due to the abundant functional N sites and good solubility in solvents, triazine derivative ligands are potential to construct frameworks as luminescence detection agent. Herein, a Pt 3 O 4 topology Zn-MOF (FJU-120) based on 2-amino-4,6-bis(4pyridine)-1,3,5-triazine(DAPT) and 1,3,5-Tris-(p-carboxyphenyl) benzene (H 3 BTB) as dual-ligands was synthesized for selective detection of nitrobenzene. FJU-120 crystallizes in the cubic system and Pm � 3n space group with a = 27.5191(9), b = 27.5191(9), c = 27.5191(9) Å, β = 90°, V = 20840(2) Å 3 , Z = 90, Mr = 448.72, Dc = 0.429 g/cm 3 , F(000) = 2736. FJU-120 shows selective fluorescence quenching behavior with nitrobenzene existing, and the corresponding K SV constant is 1124.65 L mol À 1 . This work reports a new potential crystalline porous material for toxic organic molecular fluorescence detection.

Preparation of Eu0.075Tb0.925-Metal Organic Framework as a Fluorescent Probe and Application in the Detection of Fe3+ and Cr2O72−

“…Ln-MOFs materials have outstanding luminescence characteristics; that is, they have the advantages of large Stokes shift, high quantum yield and luminescence intensity, narrow emission spectrum range, flexible coordination mode, and long luminescence life. MOFs fluorescent probes are commonly used as sensors [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Hna et al [26] synthesised Ce-MOF to detect Fe 3+ , and Gai et al [27] synthesised dual-sensor Eu-MOF to detect Fe 3+ and Cr 2 O 7 2− .…”

Three Zn(II) coordination polymers as dual‐responsive luminescent probes for highly selective detection of Fe3+ cation and MnO4− anion

“…[12][13][14] Luminescent coordination polymers (LCPs), due to the diversity of their structures and wide application in electrochemistry, catalysis, energy storage, and luminescence sensors, have attracted more and more attention. [15][16][17][18][19][20][21][22] It is well known that the specific CPs with different properties can be constructed by the dual-ligand coordination assemblies' strategy. Besides, based on the hard soft acid base (HSAB) theory, the soft-acid metal cations (such as Zn 2 + ) can form stronger coordination bond interaction with the N-donor ligands (soft base).…”

An Investigation into the Effective Removal of VOCs Released from Wood Drying using Rare Metal‐Organic Frameworks

“…[15,16] At present, the adsorption method has the advantages of high removal efficiency, thorough purification, low energy consumption, mature technology, recyclability, and convenient promotion, and has good environmental and economic benefits. [17,18] MOFs, [19][20][21][22] also known as coordination polymers (CPs), [23] are three-dimensional or two-dimensional porous materials based on the polymerization of metal ions and organic ligands, [24][25][26] is also a kind of new type of multifunctional crystal adsorption material. [27] It has the advantages of large specific surface area, many active sites, highly selective separation and easy functionalization.…”

“…MOFs, [19–22] also known as coordination polymers (CPs), [23] are three‐dimensional or two‐dimensional porous materials based on the polymerization of metal ions and organic ligands, [24–26] is also a kind of new type of multifunctional crystal adsorption material [27] . It has the advantages of large specific surface area, many active sites, highly selective separation and easy functionalization [28–30] .…”