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J Chromatogr A

Title:		Adsorption properties and gas chromatographic application of a composite surface-layer sorbent with Terephthalic acid-based metal-organic framework
Author(s):		Onuchak LA; Kopytin KA; Kuraeva YG; Pariichuk MY; Martina YV; Vinogradov NA; Alexandrov EV;
Address:		"Department of Physical Chemistry and Chromatography, Faculty of Chemistry, Samara University, Moscow Shosse St. 34, Samara 443086, Russian Federation. Department of Physical Chemistry and Chromatography, Faculty of Chemistry, Samara University, Moscow Shosse St. 34, Samara 443086, Russian Federation. Electronic address: yulya.martina@yandex.ru. Samara State Technical University, Molodogvardeyskaya St. 244, Samara 443100, Russian Federation. Samara State Technical University, Molodogvardeyskaya St. 244, Samara 443100, Russian Federation; Samara Branch of P.N. Lebedev Physical Institute of the Russian Academy of Science, Novo-Sadovaya St. 221, Samara 443011, Russian Federation; Institute of Experimental Medicine and Biotechnology, Samara State Medical University, Chapayevskaya St. 89, Samara 443099, Russian Federation"
Journal Title:		J Chromatogr A
Year:		2022
Volume:		20220725
Issue:
Page Number:		463373 -
DOI:		10.1016/j.chroma.2022.463373
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"In this paper, we report on the fabrication of a new material SiO(2)@MIL-101(Cr), which synthesis is based on the metal-organic framework MIL-101(Cr) and the silica support Chromosorb W. The obtained surface-layer sorbent was analyzed by powder X-ray diffraction analysis, Raman spectroscopy and porosity measurement. The retention regularities and the thermodynamic characteristics of the sorption of volatile organic compounds from the gas phase were studied for the packed column with the surface-layer sorbent SiO(2)@MIL-101(Cr). The results indicated that the adsorbent-adsorbate interaction in the mesoporous structure of SiO(2)@MIL-101(Cr) depends not only on the dispersion attractive forces but also on pi-pi-stacking and specific interactions with hydroxyl groups and metal cations' open coordination sites on the pore surface. In this work, we gave examples of gas chromatograms of isomers of alkanes, arenes, and chlorine derivatives of methane on a packed column with the obtained sorbent. Examples of gas chromatograms of isomers of alkanes, arenes, and chlorine derivatives of methane on a packed column with the obtained sorbent are presented"
Keywords:		Adsorption Alkanes Chlorine *Metal-Organic Frameworks Methane Phthalic Acids Silicon Dioxide Gas chromatography MIL-101(Cr) Metal-organic frameworks Surface-layer sorbent Thermodynamics of sorption;
Notes:		"MedlineOnuchak, Lyudmila A Kopytin, Kirill A Kuraeva, Yuliya G Pariichuk, Mikhail Yu Martina, Yuliya V Vinogradov, Nikolai A Alexandrov, Eugeny V eng Netherlands 2022/08/08 J Chromatogr A. 2022 Aug 30; 1679:463373. doi: 10.1016/j.chroma.2022.463373. Epub 2022 Jul 25"