Colloids and Surfaces A 538 (2018) 460–466 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Research Paper Factor eﬀects and mechanisms of the adsorption of Hg(II), Cd(II) and Ni(II) on charged liposomes a,b a b a, a a Wenwen Gong , Yanjun Yu , Gang Liang , Xinhui Liu , Baoshan Cui , Junhong Bai , b, Ping Han State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Negatively charged liposomes prepared by solvent evaporation method were characterized by transmission Negatively charged liposomes electron microscopy, Raman spectroscopy and diﬀerential scanning calorimetry. The adsorption of Ni(II), Cd(II) Heavy metals and Hg(II) on the liposomes was systematically investigated. Special attention was paid to the eﬀect of pH, ionic Adsorption strength and the particle size of liposomes on the adsorption behavior. The increase of pH (from 6.5 to 8.1) Eﬀect factors enhanced the adsorption capacity (Q ) of three metals due to its eﬀect on metal ions speciation and the con- Interaction mechanism formation
Colloids and Surfaces A: Physicochemical and Engineering Aspects – Elsevier
Published: Feb 5, 2018
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