Oxygen-rich poly-bisvanillonitrile embedded amorphous zirconium oxide nanoparticles as reusable and porous adsorbent for removal of arsenic species from water.

Autor: Seynnaeve B; Krijgslaan 281, Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Ghent 9000, Belgium; Coupure Links 653, Ecochem, Department of Green Chemistry and Technology, Ghent University, Ghent 9000, Belgium. Electronic address: Bram.Seynnaeve@Ugent.be., Folens K; Coupure Links 653, Ecochem, Department of Green Chemistry and Technology, Ghent University, Ghent 9000, Belgium., Krishnaraj C; Krijgslaan 281, Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Ghent 9000, Belgium., Ilic IK; Am Mühlenberg 1, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany., Liedel C; Am Mühlenberg 1, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany., Schmidt J; Hardenbergstr. 40, TU Berlin, Berlin 10623, Germany., Verberckmoes A; Valentin Vaerwyckweg 1, Department of Materials Textiles and Chemical Engineering, Ghent University, Ghent 9000, Belgium., Du Laing G; Coupure Links 653, Ecochem, Department of Green Chemistry and Technology, Ghent University, Ghent 9000, Belgium., Leus K; Krijgslaan 281, Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Ghent 9000, Belgium., Van Der Voort P; Krijgslaan 281, Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Ghent 9000, Belgium.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2021 Jul 05; Vol. 413, pp. 125356. Date of Electronic Publication: 2021 Feb 11.
DOI: 10.1016/j.jhazmat.2021.125356
Abstrakt: A new oxygen-rich porous polymer based on bisvanillonitrile was synthesized and characterized. This polymer was employed as support for the anchoring of 14.5 w% amorphous zirconium oxide nanoparticles. The formation of homogeneously dispersed nanoparticles in the poly-bisvanillonitrile (PBVN) host material was confirmed using N 2 -sorption, XRPD, XPS and electron microscopy. The combination of zirconium oxide nanoparticles having active adsorption sites with the porous supporting material showed excellent adsorption of arsenic species. The resulting adsorption capacities of the hybrid material extend to 245 mg g -1 for arsenite (As III ) and 115 mg g -1 for arsenate (As V ). Moreover, adsorption kinetics showed a fast removal of both arsenic species with initial adsorption rate h of 0.0646 mg g -1 min -1 for arsenite and 0.0746 mg g -1 min -1 for arsenate. The immobilization was not interfered by the presence of other compounds in solution, indicating the applicability in real working environments. The material could be regenerated in a continuous mode using a 0.1 mol L -1 sodium hydroxide solution at 70 °C to desorb arsenic.
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Databáze: MEDLINE
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