Physico-chemical nanomaterials science

Polymers and metal ions adsorption on the surface of biochars obtained from the nettle and sage herbs
Gęca M.1, Wiśniewska M.1*, Nowicki P.2
1Department of Radiochemistry and Environmental Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland,
E-mail: *malgorzata.wisniewska@mail.umcs.pl;
2Department of Applied Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.

Biochars are solids formed by biomass pyrolysis. They could be used as environmental friendly and low-costs adsorbents [1, 2]. Polymers and metals are wide used in modern industry. However these molecules are often toxic and dangerous for health. For that reason polymers and metals ions should be removed from water solutions. Adsorption of metal ions on the surface of activated carbons is commonly studied [3, 4]. However, polymers adsorption on these adsorbents is not widely described, so the presented research is innovative. 
Poly(acrylic acid) and polyethyleneimine adsorption in the presence of metal ions on the surface of biochars obtained from the nettle and sage herbs was investigated. Studies were carried out in single and multi-component solutions. The influence of polymers on the metal ions adsorption was also checked. All these research allowed to assess the usefulness of biochars in real wastewater treatment processes.

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