An effective "precursor-transformation" route was developed for the high-yield synthesis of ZIF-8 tubes based on the reaction of 1D Zn-EG (ethylene glycol) wires with 2-methylimidazole (with around 0.6 g of ZIF-8/60 mL of solvent, the yield is over 90% based on Zn). The ZIF-8 tubes fixed on a sponge can be used as an effective material for oil/water separation.
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http://dx.doi.org/10.1039/c9cc08724a | DOI Listing |
Molecules
December 2024
Gulbali Institute, Charles Sturt University, Wagga, NSW 2650, Australia.
The most commonly used methods to chemically assess grape and wine quality with high sensitivity and selectivity require lengthy analysis time and can be resource intensive. Here, we developed a rapid and non-destructive method that would help in grading and decision support. In this work, we demonstrate that integrating a three-dimensional (3D) material for volatile sampling with mass spectrometry detection can be used to sample grapes for phytosanitary, quality or smoke-taint assessments at low levels of marker compounds.
View Article and Find Full Text PDFDalton Trans
September 2022
Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss Str. 12, 64287 Darmstadt, Germany.
The metal organic framework structure ZIF-8 has been grown directly on vertically aligned carbon nano tubes (VACNT) by a solid vapour transformation of a ZnO@VACNT composite with gaseous 2-methylimidazole. The ZnO@VACNT composite was synthesised by atomic layer deposition (ALD) using diethylzinc and water as precursors resulting in a homogeneous distribution of crystalline ZnO particles with an average size of 13 nm within the 3D VACNT host structure. The ZnO@VACNT composite was transformed to ZIF-8 by reaction with 2-methyl-imidazole (Hmim) while maintaining the 3D VACNT structure employing a solid vapour transformation reaction.
View Article and Find Full Text PDFBy sacrificing a porous anodic aluminum oxide (AAO) membrane as a template, hollow tubular TpBD (H-TpBD) covalent organic framework (COF) tubes were synthesized and zeolitic imidazolate framework (ZIF-8) nanoparticles were creatively synthesized in H-TpBD tubes at room temperature. H-TpBD COF tubes and ZIF-8/H-TpBD COF tubes were procured by using a strong base or acid to remove the AAO membrane. Then they were analyzed by X-ray diffraction, Fourier infrared spectroscopy, scanning electron microscope, transmission electron microscope, Surprisingly, the obtained TpBD COF has a very small aperture (1.
View Article and Find Full Text PDFChem Commun (Camb)
March 2020
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
An effective "precursor-transformation" route was developed for the high-yield synthesis of ZIF-8 tubes based on the reaction of 1D Zn-EG (ethylene glycol) wires with 2-methylimidazole (with around 0.6 g of ZIF-8/60 mL of solvent, the yield is over 90% based on Zn). The ZIF-8 tubes fixed on a sponge can be used as an effective material for oil/water separation.
View Article and Find Full Text PDFACS Appl Mater Interfaces
June 2019
The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, College of Chemistry and Chemical Engineering , Chongqing University, Chongqing 400044 , China.
Herein, we report an efficient strategy to transfer metal organic frameworks into huge-diameter carbon nanotubes (CNTs) at high production by using Fe-citrate-functionalized zeolitic imidazolium frameworks-8 (ZIF-8) as precursors. The constructed porous Fe-N-decorated CNTs represent a tube diameter of >0.1 μm and a length of >5 μm.
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