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Carbon-Bonded Alumina Filters Coated by Graphene Oxide for Water Treatment.

ABSTRACT: The aim of this paper is to prepare nano-functionalized ceramic foam filters from carbon-bonded alumina. The carbon-bonded filters were produced via the Schwartzwalder process using a two-step approach. The prepared ceramic foam filters were further coated using graphene oxide. Graphene oxide was prepared by the modified Tour method. The C/O of the graphene oxide ratio was evaluated by XPS, EDS and elemental analysis (EA). The amount and type of individual oxygen functionalities were characterized by XPS and Raman spectroscopy. The microstructure was studied by TEM, and XRD was used to evaluate the interlayer distance. In the next step, filters were coated by graphene oxide using dip-coating. After drying, the prepared composite filters were used for the purification of the water containing lead, zinc and cadmium ions. The efficiency of the sorption was very high, suggesting the potential use of these materials for the treatment of wastewater from heavy metals.

SUBMITTER: Jankovsky O 

PROVIDER: S-EPMC7215612 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Carbon-Bonded Alumina Filters Coated by Graphene Oxide for Water Treatment.

Jankovský Ondřej O   Lojka Michal M   Jiříčková Adéla A   Aneziris Christos G CG   Storti Enrico E   Sedmidubský David D  

Materials (Basel, Switzerland) 20200424 8

The aim of this paper is to prepare nano-functionalized ceramic foam filters from carbon-bonded alumina. The carbon-bonded filters were produced via the Schwartzwalder process using a two-step approach. The prepared ceramic foam filters were further coated using graphene oxide. Graphene oxide was prepared by the modified Tour method. The C/O of the graphene oxide ratio was evaluated by XPS, EDS and elemental analysis (EA). The amount and type of individual oxygen functionalities were characteriz  ...[more]

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