TY - JOUR
T1 - Relation between interfacial energy and adsorption of organic micropollutants onto activated carbon
AU - De Ridder, David J.
AU - Verliefde, Arne R. D.
AU - Schoutteten, K.
AU - Van Der Linden, Bart Th
AU - Heijman, Sebastiaan G J
AU - Beurroies, Isabelle
AU - Denoyel, Renaud O.
AU - Amy, Gary L.
AU - Van Dijk, Johannis C.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research is financially supported by VEWIN, the association of drinking water companies in the Netherlands. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the authors and do not necessarily reflect the opinion of the supporting organisation.
PY - 2013/3
Y1 - 2013/3
N2 - The adsorption efficacy of 16 pharmaceuticals on six different activated carbons is correlated to the thermodynamic work of adhesion, which was derived following the surface tension component approach. Immersion calorimetry was used to determine the surface tension components of activated carbon, while contact angle measurements on compressed plates were used to determine these for solutes. We found that the acid-base surface tension components of activated carbon correlated to the activated carbon oxygen content. Solute-water interaction correlated well to their solubility, although four solutes deviated from the trend. In the interaction between solute and activated carbon, van der Waals interactions were dominant and explained 65-94% of the total interaction energy, depending on the hydrophobicity of the activated carbon and solute. A reasonable relationship (r2 > 70) was found between the calculated work of adhesion and the experimentally determined activated carbon loading. © 2012 Elsevier Ltd. All rights reserved.
AB - The adsorption efficacy of 16 pharmaceuticals on six different activated carbons is correlated to the thermodynamic work of adhesion, which was derived following the surface tension component approach. Immersion calorimetry was used to determine the surface tension components of activated carbon, while contact angle measurements on compressed plates were used to determine these for solutes. We found that the acid-base surface tension components of activated carbon correlated to the activated carbon oxygen content. Solute-water interaction correlated well to their solubility, although four solutes deviated from the trend. In the interaction between solute and activated carbon, van der Waals interactions were dominant and explained 65-94% of the total interaction energy, depending on the hydrophobicity of the activated carbon and solute. A reasonable relationship (r2 > 70) was found between the calculated work of adhesion and the experimentally determined activated carbon loading. © 2012 Elsevier Ltd. All rights reserved.
UR - http://hdl.handle.net/10754/562666
UR - https://linkinghub.elsevier.com/retrieve/pii/S000862231200855X
UR - http://www.scopus.com/inward/record.url?scp=84871329149&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2012.10.042
DO - 10.1016/j.carbon.2012.10.042
M3 - Article
SN - 0008-6223
VL - 53
SP - 153
EP - 160
JO - Carbon
JF - Carbon
ER -