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J Hazard Mater. 2016 Jul 15;312:262-271. doi: 10.1016/j.jhazmat.2016.03.073. Epub 2016 Mar 26.

Single and multi-component adsorptive removal of bisphenol A and 2,4-dichlorophenol from aqueous solutions with transition metal modified inorganic-organic pillared clay composites: Effect of pH and presence of humic acid.

Journal of hazardous materials

Krisiam Ortiz-Martínez, Pratap Reddy, Wilman A Cabrera-Lafaurie, Félix R Román, Arturo J Hernández-Maldonado

Affiliations

  1. Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico.
  2. Department of Chemistry, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico.
  3. Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico. Electronic address: [email protected].

PMID: 27037481 DOI: 10.1016/j.jhazmat.2016.03.073

Abstract

Pillared clay based composites containing transition metals and a surfactant, namely MAlOr-NaBt (Bt=bentonite; Or=surfactant; M=Ni(2+), Cu(2+)or Co(2+)), were prepared to study selectivity and capacity toward single and multiple-component adsorption of bisphenol A (BPA) and 2,4-diclorophenol (DCP) from water. Tests were also performed to account for the presence of natural organic matter in the form of humic acid (HA). Equilibrium adsorption capacities for single components increased as follows: NaBt

Copyright © 2016 Elsevier B.V. All rights reserved.

Keywords: Competitive adsorption; Fixed beds; Humic acid; Phenolic compounds; Transition metals

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