title: Removal of bisphenol A from aqueous solution by a dodecylsulfate ion-intercalated hydrotalcite-like compound.
abstract: A Mg-Al hydrotalcite-like compound (HTlc) and a dodecylsufate ion-intercalated Mg-Al HTlc (MHTlc) were prepared. The effects of temperature, ionic strength, and initial pH on the adsorptions ofbisphenol A (BPA) on both HTlc and MHTlc were studied in detail. The adsorption capacity of the pristine HTlc for BPA was low, and the adsorption was due to the substitution of surface anions within the pristine HTlc by the hydroxybenzene anion that was dissociated from BPA. The adsorption capacity for BPA increased notably with modification. The high adsorption capacity of MHTlc for BPA was mainly due to the dissolution of BPA molecules into the hydrophobic organic phase formed in the interlayers of MHTlc. The adsorption capacity of MHTlc for BPA decreased with increasing temperature and initial pH, but increased when increasing the ionic strength.
authors.affiliation: Department of Chemistry, Changzhi College, Changzhi, PR China. liyan_china@126.com
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Hao-Yu
authors.initials: HY
authors.lastname: Bi
authors.forename: Shuang-Long
authors.initials: SL
authors.lastname: Shen
mesh_terms: D000327:Adsorption; D000536:Aluminum Hydroxide / Q000138:chemical synthesis*; D001559:Benzhydryl Compounds; D006863:Hydrogen-Ion Concentration; D008276:Magnesium Hydroxide / Q000138:chemical synthesis*; D009994:Osmolar Concentration; D010636:Phenols / Q000302:isolation & purification*; D013457:Sulfur Compounds / Q000138:chemical synthesis*; D013696:Temperature; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D000098826:Bisphenol A Compounds
chemical_list: D000536:Aluminum Hydroxide; D001559:Benzhydryl Compounds; D008276:Magnesium Hydroxide; D010636:Phenols; D013457:Sulfur Compounds; D014874:Water Pollutants, Chemical; C010467:hydrotalcite; C006780:bisphenol A; D000098826:Bisphenol A Compounds