Volume: 1, 2022
1st International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: E003
DOI: https://doi.org/10.24326/ICDSUPL1.E003
Published online: 26 April 2022
ICDSUPL, 1, E003 (2022)
Activated carbons obtained from herbs as polymers adsorbents
Marlena Gęca1, Małgorzata Wiśniewska1, Piotr Nowicki2
1 Department 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
2 Department of Applied Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
* Corresponding author: marlena.geca@wp.pl
Abstract
Activated carbons are solids with highly developed surface area and possessing specific acid-base properties. They can be obtained from wood, coal and peat. The use of these raw materials can have negative influence on the environment. For that reason it is necessary to search for new materials which do not have adverse impact on nature. Herbs fully meet this criterion. They can grow back after harvesting, so they are a renewable source. Moreover, their mowing does not disturb the ecosystem balance. In the presented studies adsorptive abilities of activated carbons obtained from the nettle and the sage herbs were investigated. Many ways of activation and surface modification allow to obtain activated carbons with different properties. For that reason substances of different chemical properties can be adsorbed onto their surface. Activated carbons are commonly used as dyes and heavy metals adsorbents, however polymers adsorption onto their surface is not widely described. Polymers are macromolecular substances which consumption increase with the constant development of industry. Because of their synthetic origin, they should not get into the environment. For that reason it is necessary to search for a new methods of wastewaters purification from water-soluble polymers. One of the most effective is adsorption. Taking the above into consideration, anionic poly(acrylic acid) and cationic polyethyleneimine adsorption onto nettle and the sage herbs-based activated carbons were examined. Poly(acrylic acid) macromolecules contain carboxyl groups, whereas polyethyleneimine chains – amine ones. Because of that, they have different chemical properties and charges in aqueous solution, which can affect their adsorption in systems with various pH values considerably.
How to cite
M. Gęca, M. Wiśniewska, P. Nowicki, 2022. Activated carbons obtained from herbs as polymers adsorbents. In: 1st International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL1/E003