عنوان مقاله:

نویسندگان:

ولی اله نوبخت، سحر سبک خیز

Visual sensors based on Metal Organic Frameworks (MOFs) in the detection of gases and vapors are known as vapochromic systems. The color change of MOFs is easily visible with the naked eye and is the simplest answer in sensing and detecting gaseous species [1]. In this work, a cobalt-organic framework (Co(II)-MOF) has been perpared by the reaction of mix bis-pyridyl and dicarboxylate linkers under ultrasound irradiation. The composite mixture of these nanocrystals was prepared with organic polymer polyvinylidene fluoride (PVDF) and using the phase inversion method, the resulting mixture was shaped into composite beads. The sensing properties of the prepared bead composites against the vapors of concentrated industrial acids such as Hydrochloric acid (HCl), Nitric acid (HNO3) and Sulfuric acid (H2SO4), as well as Thionyl chloride (SOCl2) vapor were investigated. The color change of nanoparticles from purple was observed as green, yellow, blue-violet and dark green respectively.

Metal‒organic framework (MOF), Sensing, Bead composite

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اله نوبخت، ولی، سبک خیز، سحر، 1402، Synthesis fabrication and characterizational new Co(II)-MOF/polyvinylidene fluoride (PVDF) bead composites as visual sensor for detection of industrial acid vapors، بیست و دومین کنفرانس شیمی معدنی ایران، https://conference.uok.ac.ir/fa/archive_index.php?c=HN-iicc22&aid=1517852