Electrospun nanofibrous mats as skeletons to produce MOF membranes for the detection of explosives

Electrospun Fluorescent Nanofibers for Explosive Detection

“…Thereby, the development of chemical sensors based on MOFs has drawn considerable attention due to their flexible structures responsive to external stimulation. Yunxia Xu reported the example of using electrospun nanofibrous mats as skeletons to produce MOF membranes, and demonstrated the great potentials of (d) are the bright-field images of same membranes after detection; (e) detection of particulate explosives contaminated hand using the electrospun pyrene/PS/TBAH films [54] such nonwoven fiber mats as a new kind of porous supports in MOF research field [57]. Macroporous network structure of Zn-MOF/PST-1 thin films prepared by using electrospinning technique.…”

“…Figure 8.12 illustrates characterization of Zn-MOF/PST-1 and Zn-MOF/PST-2. Following this, they were performed the fluorescence quenching experiments to demonstrate the ability of Zn-MOF/PST-2 thin films for detection of [57] nitroaromatic explosives. Fluorescence response to vapors of DNT and TNT was certained by inserting the prepared films into glass vials (10 mL) which containing 1.5 g solids DNT and TNT powder and cotton gauze.…”

“…Because the vapor pressure of DNT is about 70-fold and 4 Â 10 4 fold that of TNT and PA, respectively, the quenching percentage with TNT or PA vapor is thus surprisingly larger than that expected from the relative vapor pressure of these explosives. That means TMOPP-based electrospun nanofibrous films have the potential to [57] sensitively detect down to several parts-per-billion of TNT vapor or several partsper-trillion of PA vapor in the atmosphere. The ultra sensitive detection of TNT is demonstrated by using porphyrinated polyimide nanofibers by Lv YY [59].…”

Hybrid metal-organic framework nanomaterials with enhanced carbon dioxide and methane adsorption enthalpy by incorporation of carbon nanotubes

“…With the advantages of the porosity, the large surface areas and the uniform pore characteristics, these MOF materials have great potential for a variety of applications, such as gas storage, chemical separation, catalysis, sensing and drug delivery [19][20][21][22]. Furthermore, owing to the diversity of metal centres and functional ligands, MOF materials offer the opportunity of developing new types of composite materials that may show enhanced gas storage properties or new behaviour compared with the original MOFs [15,[23][24][25][26][27][28][29][30][31].…”

“…With the advantages of the porosity, the large surface areas and the uniform pore characteristics, these MOF materials have great potential for a variety of applications, such as gas storage, chemical separation, catalysis, sensing and drug delivery [19][20][21][22]. Furthermore, owing to the diversity of metal centres and functional ligands, MOF materials offer the opportunity of developing new types of composite materials that may show enhanced gas storage properties or new behaviour compared with the original MOFs [15,[23][24][25][26][27][28][29][30][31].In our previous work, we synthesised a kind of MOF material, Dy(BTC)(H 2 O)·DMF (named JUC-32, JUC = Jilin University, China)[32], which exhibits excellent thermal stability and high carbon dioxide storage capability. We then successfully used JUC-32-Y (replacing the metal Dy with Y) as the host for a hybrid material, by assembling guest molecules of ammonia borane (AB) materials, which exhibited a dramatic improvement in the hydrogen release kinetics, the lower operational temperature and the purity of the released hydrogen [33].…”