The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons
Abstract
In this study, the adsorption of pharmaceutically active compounds - salicylic acid, acetylsalicylic acid, atenolol and diclofenac-Na onto activated carbons has been studied. Three different commercial activated carbons, possessing similar to 650, 900 or 1500 m(2) g(-1) surface areas were used as solid adsorbents. These materials were fully characterized - their textural, surface features and points of zero charge have been determined. The adsorption was studied from aqueous solutions at 303 K using batch adsorption experiments and titration microcalorimetry, which was employed in order to obtain the heats evolved as a result of adsorption. The maximal adsorption capacities of investigated solids for all target pharmaceuticals are in the range of 10(-4) mol g(-1). The obtained maximal retention capacities are correlated with the textural properties of applied activated carbon. The roles of acid/base features of activated carbons and of molecular structures of adsorbate molecules have b...een discussed. The obtained results enabled to estimate the possibility to use the activated carbons in the removal of pharmaceuticals by adsorption.
Keywords:
Wastewater / Activated carbon / Pharmaceutically active compound / Emerging contaminant / Adsorption / MicrocalorimetrySource:
Journal of Hazardous Materials, 2015, 282, 141-149Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Oxide-based environmentally-friendly porous materials for genotoxic substances removal (RS-MESTD-Basic Research (BR or ON)-172018)
- The structure and dynamics of molecular systems in ground and excited electronic states (RS-MESTD-Basic Research (BR or ON)-172040)
DOI: 10.1016/j.jhazmat.2014.04.062
ISSN: 0304-3894
PubMed: 24857621
WoS: 000346213400018
Scopus: 2-s2.0-84921839879
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Rakić, Vesna AU - Rac, Vladislav AU - Krmar, Marija AU - Otman, Otman AU - Auroux, Aline PY - 2015 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3803 AB - In this study, the adsorption of pharmaceutically active compounds - salicylic acid, acetylsalicylic acid, atenolol and diclofenac-Na onto activated carbons has been studied. Three different commercial activated carbons, possessing similar to 650, 900 or 1500 m(2) g(-1) surface areas were used as solid adsorbents. These materials were fully characterized - their textural, surface features and points of zero charge have been determined. The adsorption was studied from aqueous solutions at 303 K using batch adsorption experiments and titration microcalorimetry, which was employed in order to obtain the heats evolved as a result of adsorption. The maximal adsorption capacities of investigated solids for all target pharmaceuticals are in the range of 10(-4) mol g(-1). The obtained maximal retention capacities are correlated with the textural properties of applied activated carbon. The roles of acid/base features of activated carbons and of molecular structures of adsorbate molecules have been discussed. The obtained results enabled to estimate the possibility to use the activated carbons in the removal of pharmaceuticals by adsorption. PB - Elsevier Science Bv, Amsterdam T2 - Journal of Hazardous Materials T1 - The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons EP - 149 SP - 141 VL - 282 DO - 10.1016/j.jhazmat.2014.04.062 ER -
@article{ author = "Rakić, Vesna and Rac, Vladislav and Krmar, Marija and Otman, Otman and Auroux, Aline", year = "2015", abstract = "In this study, the adsorption of pharmaceutically active compounds - salicylic acid, acetylsalicylic acid, atenolol and diclofenac-Na onto activated carbons has been studied. Three different commercial activated carbons, possessing similar to 650, 900 or 1500 m(2) g(-1) surface areas were used as solid adsorbents. These materials were fully characterized - their textural, surface features and points of zero charge have been determined. The adsorption was studied from aqueous solutions at 303 K using batch adsorption experiments and titration microcalorimetry, which was employed in order to obtain the heats evolved as a result of adsorption. The maximal adsorption capacities of investigated solids for all target pharmaceuticals are in the range of 10(-4) mol g(-1). The obtained maximal retention capacities are correlated with the textural properties of applied activated carbon. The roles of acid/base features of activated carbons and of molecular structures of adsorbate molecules have been discussed. The obtained results enabled to estimate the possibility to use the activated carbons in the removal of pharmaceuticals by adsorption.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Journal of Hazardous Materials", title = "The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons", pages = "149-141", volume = "282", doi = "10.1016/j.jhazmat.2014.04.062" }
Rakić, V., Rac, V., Krmar, M., Otman, O.,& Auroux, A.. (2015). The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons. in Journal of Hazardous Materials Elsevier Science Bv, Amsterdam., 282, 141-149. https://doi.org/10.1016/j.jhazmat.2014.04.062
Rakić V, Rac V, Krmar M, Otman O, Auroux A. The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons. in Journal of Hazardous Materials. 2015;282:141-149. doi:10.1016/j.jhazmat.2014.04.062 .
Rakić, Vesna, Rac, Vladislav, Krmar, Marija, Otman, Otman, Auroux, Aline, "The adsorption of pharmaceutically active compounds from aqueous solutions onto activated carbons" in Journal of Hazardous Materials, 282 (2015):141-149, https://doi.org/10.1016/j.jhazmat.2014.04.062 . .