title: Preparation of Mg-Al layered double hydroxide intercalated with Coomassie Brilliant Blue R anion and its uptake of aromatic compounds from aqueous solutions.
abstract: The objective of this study is to evaluate the capacity of Mg-Al layered double hydroxide (Mg-Al LDH) intercalated with organic dye to adsorb aromatic compounds in aqueous solutions. Mg-Al LDH intercalated with Coomassie Brilliant Blue R anion (BB(-)) was prepared by coprecipitation. The BB(-)-intercalated Mg-Al LDH was able to adsorb aromatic compounds from an aqueous solution, despite the electron density in the benzene ring of the aromatics. This uptake is caused by π-π stacking interactions, either between the electron-rich benzene rings of intercalated BB(-) and the benzene rings of aromatics with a low electron density or between the electron-poor benzene rings of intercalated BB(-) and the benzene rings of the aromatics with a high electron density.
authors.affiliation: Graduate School of Environmental Studies, Tohoku University, Aoba-ku, Sendai, Japan. kameda@env.che.tohoku.ac.jp
authors.forename: Tomohito
authors.initials: T
authors.lastname: Kameda
authors.forename: Syunsuke
authors.initials: S
authors.lastname: Sato
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Yoshioka
mesh_terms: D000536:Aluminum Hydroxide / Q000737:chemistry*; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D007364:Intercalating Agents / Q000737:chemistry*; D008276:Magnesium Hydroxide / Q000737:chemistry*; D012394:Rosaniline Dyes / Q000737:chemistry*
chemical_list: D006841:Hydrocarbons, Aromatic; D007364:Intercalating Agents; D012394:Rosaniline Dyes; D000536:Aluminum Hydroxide; C024757:Coomassie brilliant blue R; D008276:Magnesium Hydroxide