Direct Synthesis of Sulfur-Decorating PAMAM Dendrimer/Mesoporous Silica for Enhanced Hg(II) and Cd(II) Adsorption
Liping Luan, Bentian Tang, Yi Liu, Wenlong Xu, Yongfeng Liu, Aili Wang, Yuzhong Niu
Abstract
for Hg(II) and Cd(II), respectively . Moreover, the adsorbents show excellent selective adsorption and regeneration property. G2.0-S-1/2 displays distinct selectivity for Hg(II) with the presence of Co(II), Pb(II), Cd(II), and Cu(II). The regeneration percentage still maintains 95.2% after five adsorption-desorption cycles. The adsorption mechanism is also certified by the experimental method and theoretical calculation.
Topics & Concepts
AdsorptionDendrimerMesoporous materialChemistryMesoporous silicaDesorptionMetal ions in aqueous solutionSelectivityInorganic chemistryChemical engineeringMetalNuclear chemistryCatalysisOrganic chemistryEngineeringCovalent Organic Framework ApplicationsAdsorption and biosorption for pollutant removalDendrimers and Hyperbranched Polymers