Selective and adsorptive removal of anionic dyes and CO2 with azolium-based metal-organic frameworks

Selective and adsorptive removal of anionic dyes and CO2 with azolium-based metal-organic frameworks

Dades bibliogràfiques
Parent link:Journal of Colloid and Interface Science
Vol. 519.— 2018.— [P. 214-223]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий (ИШХБМТ)
Altres autors: Chizoba I. E. Ezugwu, Md. Ali Asraf, Xiao Li, Liu Shengwei, Kao Chih-Ming, Zhuiykov S. V. Sergey, Verpoort F. V. K. Frensis Valter Kornelius
Sumari:Title screen
The positively charged azolium moieties make imidazolium linker an ideal linker for the construction of cationic metal-organic frameworks because the ligand induces cationic environments in the frameworks. Therefore, we employed two imidazolium ligands, 1,3-bis(4-carboxyphenyl)imidazolium chloride (H2L+ Cl) and 1,3-bis(3,5-dicarboxyphenyl)imidazolium chloride (H4L+ Cl), to synthesize two nickel azolium-based MOFs, 1 and 2. The as-synthesis MOFs were characterized by PXRD, TGA, FE-SEM, HRTEM, FTIR and BET measurements. By applying 1 and 2 in liquid phase adsorption of charged molecules of dyes, they successfully exhibit remarkable efficiency for adsorptive removal of anionic dyes, Methyl orange (MO), Congo red (CR), and Orange II sodium salt (OS), from aqueous solution. The framework proves efficient in photocatalytic degradation of anionic dye. Furthermore, in the gaseous phase adsorption, 1 and 2 selectively adsorb CO2 over CH4 due to the higher quadrupole moment of CO2. Overall, the results show that azolium-based MOFs have potential applications for adsorptive removal of charged organic contaminants from both aqueous and gaseous environment.
Режим доступа: по договору с организацией-держателем ресурса
Publicat: 2018
Matèries:
электронный ресурс
труды учёных ТПУ
dye
gaseous molecule
adsorption
photocatalysis
красители
адсорбция
фотокатализ
Accés en línia:https://doi.org/10.1016/j.jcis.2018.02.003
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657869

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