Solvent-Free Synthesis of Phosphonic Graphene Derivative and Its Application in Mercury Ions Adsorption
Abstract
Functionalized graphene was efficiently prepared through ball-milling of graphite in the presence of dry ice. In this way, oxygen functional groups were introduced into material. The material was further chemically functionalized to produce graphene derivative with phosphonic groups. The obtained materials were characterized by spectroscopic and microscopic methods, along with thermogravimetric analysis. The newly developed material was used as an efficient mercury adsorbent, showing high adsorption efficiency. The adsorption isotherms were fitted using Freundlich and Langmuir models. The adsorption kinetics were fitted with pseudo-first order and pseudo-second order models. Adsorption selectivity was determined in the presence of cadmium ions and nickel ions. The presence of mentioned bivalent ions in the solution did not affect mercury adsorption efficiency.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Nanomaterials
no. 9,
pages 1 - 15,
ISSN: 2079-4991 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Olszewski R. S., Nadolska M., Łapiński M. S., Prześniak-Welenc M., Cieślik B., Żelechowska K.: Solvent-Free Synthesis of Phosphonic Graphene Derivative and Its Application in Mercury Ions Adsorption// Nanomaterials. -Vol. 9, iss. 4 (2019), s.1-15
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/nano9040485
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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