Nitroimidazoles adsorption on activated carbon cloth from aqueous solution

•ACC shown a high capacity to adsorb nitroimidazoles in aqueous solution.•Nitroimidazoles adsorption is control by intraparticle diffusion processes.•The adsorptive capacity of ACC was markedly enhanced in surface waters.•ACC surface chemistry plays a predominant role in nitroimidazole adsorption. T...

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Bibliographic Details
Published in:Journal of colloid and interface science 2013-07, Vol.401, p.116-124
Main Authors: Ocampo-Pérez, R., Orellana-Garcia, F., Sánchez-Polo, M., Rivera-Utrilla, J., Velo-Gala, I., López-Ramón, M.V., Alvarez-Merino, M.A.
Format: Article
Language:English
Subjects:
Activated carbon
Activated carbon cloth
Adsorbents
Adsorption
alkalinity
ammonia
aqueous solutions
Carbon - chemistry
Chemistry
Cloth
Diffusion
dimetridazole
dissolved organic matter
electrostatic interactions
Exact sciences and technology
forces
General and physical chemistry
hydrogen bonding
Hydrogen-Ion Concentration
ionic strength
Kinetics
Mathematical models
metronidazole
Nitroimidazole
Nitroimidazoles - chemistry
Osmolar Concentration
ozone
Real water
Solutions
Surface chemistry
Surface physical chemistry
Surface Properties
surface water
Temperature
Waste water
wastewater
Water - chemistry
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Summary:•ACC shown a high capacity to adsorb nitroimidazoles in aqueous solution.•Nitroimidazoles adsorption is control by intraparticle diffusion processes.•The adsorptive capacity of ACC was markedly enhanced in surface waters.•ACC surface chemistry plays a predominant role in nitroimidazole adsorption. The objective of this study was to analyze the equilibrium and adsorption kinetics of nitroimidazoles on activated carbon cloth (ACC), determining the main interactions responsible for the adsorption process and the diffusion mechanism of these compounds on this material. The influence of the different operational variables, such as ionic strength, pH, temperature, and type of water (ultrapure, surface, and waste), was also studied. The results obtained show that the ACC has a high capacity to adsorb nitroimidazoles in aqueous solution. Electrostatic interactions play an important role at pH
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2013.03.038