title: Enhanced removal of 8-quinolinecarboxylic acid in an activated carbon cloth by electroadsorption in aqueous solution.
abstract: The effect of the electrochemical treatment (potentiostatic treatment in a filter-press electrochemical cell) on the adsorption capacity of an activated carbon cloth (ACC) was analyzed in relation with the removal of 8-quinolinecarboxylic acid pollutant from water. The adsorption capacity of an ACC is quantitatively improved in the presence of an electric field (electroadsorption process) reaching values of 96% in comparison to 55% in absence of applied potential. In addition, the cathodic treatment results in higher removal efficiencies than the anodic treatment. The enhanced adsorption capacity has been proved to be irreversible, since the removed compound remains adsorbed after switching the applied potential. The kinetics of the adsorption processes is also improved by the presence of an applied potential.
authors.affiliation: Departamento de Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain.
authors.forename: S
authors.initials: S
authors.lastname: López-Bernabeu
authors.affiliation: Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Ruiz-Rosas
authors.affiliation: Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Pza- Ferràndiz y Carbonell, E-03801 Alcoy, Alicante, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Quijada
authors.affiliation: Departamento de Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Montilla
authors.affiliation: Departamento de Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain. Electronic address: morallon@ua.es.
authors.forename: E
authors.initials: E
authors.lastname: Morallón
mesh_terms: D000327:Adsorption; D002264:Carboxylic Acids; D002606:Charcoal / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D007700:Kinetics; D011804:Quinolines / Q000737:chemistry* / Q000302:isolation & purification*; D012996:Solutions; D013784:Textiles; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
chemical_list: D002264:Carboxylic Acids; D011804:Quinolines; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water; D002606:Charcoal; C000610128:8-quinolinecarboxylic acid
keywords: Activated carbon cloth; Adsorption; Electroadsorption; Electrochemical treatment; Water treatment