title: Adsorptive removal of Methylene blue and Methyl orange from aqueous media by carboxylated diaminoethane sporopollenin: on the usability of an aminocarboxilic acid functionality-bearing solid-stationary phase in column techniques.
abstract: The adsorption phenomena of Methylene blue (MB) and Methyl orange (MO) on a carboxylated diaminoethane sporopollenin (CDAE-S) solid phase were investigated in a column arrangement by using breakthrough technique. The adsorption phenomena were evaluated using some common adsorption isotherm models and Scatchard plot analysis, and obtained results were interpreted for evaluating the usability of CDAE-S for removal, recovery and preconcentration of the studied dyes both at the laboratory and industrial scales. On the basis of Scatchard plot analysis, the interaction types between the CDAE-S and the studied dyes were criticized in terms of affinity phenomena. Thus, the usability of a biomacromolecule-derived material, CDAE-S, as a cheap, environmentally-friendly and effective solid-stationary phase exhibiting both cation-exchange and anion-exchange characteristics at the same time, is discussed through the present study. Besides, from the obtained results, the protonated CDAE-S, which functionally resembles an amino acid structure, are presented as a two-in-one solid-stationary phase, and its adaptability to common processes performed under column conditions is also drawn in detail.
authors.affiliation: Niğde University, Faculty of Science and Art, Department of Chemistry, 51100 Niğde, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Ayar
authors.forename: Orhan
authors.initials: O
authors.lastname: Gezici
authors.forename: Muhittin
authors.initials: M
authors.lastname: Küçükosmanoğlu
mesh_terms: D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry*; D001704:Biopolymers / Q000737:chemistry*; D002264:Carboxylic Acids / Q000737:chemistry; D002338:Carotenoids / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D005029:Ethylenediamines / Q000737:chemistry; D008751:Methylene Blue / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D001391:Azo Compounds; D001704:Biopolymers; D002264:Carboxylic Acids; D004396:Coloring Agents; D005029:Ethylenediamines; D014874:Water Pollutants, Chemical; C009800:sporopollenin; D002338:Carotenoids; C100258:methyl orange; D008751:Methylene Blue