title: Design of PAMAM-COO dendron-grafted surfaces to promote Pb(II) ion adsorption.
abstract: An expanding area of green technology is the wastewater treatment of heavy metal ions. As the adsorption of cations onto solid surfaces has been proven to be successful, recent research has demonstrated enhanced adsorption profiles by grafting dendron brushes onto a solid support. Via the molecular dynamics technique, we examine the adsorption of Pb(II) ions onto polyamidoamine (PAMAM) with carboxylate terminal groups through a coarse-grained implicit solvent model. We identify dendron generations and grafting densities, or surface coverage levels, which demonstrate optimal adsorption of Pb(II) ions. Our results can be potentially used to design functionalized surfaces for metal ion adsorption in application entailing environmental remediation or protective surface coating.
authors: Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA. meenakshi.dutt@rutgers.edu.
authors: Leebyn
authors: L
authors: Chong
authors: Meenakshi
authors: M
authors: Dutt
mesh_terms: D000327:Adsorption; D050091:Dendrimers / Q000737:chemistry*; D007854:Lead / Q000737:chemistry* / Q000302:isolation & purification; D008968:Molecular Conformation; D056004:Molecular Dynamics Simulation; D012997:Solvents / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D050091:Dendrimers; C104700:PAMAM Starburst; D012997:Solvents; D014874:Water Pollutants, Chemical; D007854:Lead