Affiliation:
1. College of Chemistry and Environment Engineering, Shandong University of Science and Technology, Qingdao 266510, P. R. China
Abstract
A series of UiO-66-PEI materials were obtained by impregnating UiO-66 with different amounts of polyethylenimine (PEI) with UiO-66 as the basic skeleton material. The materials were used as adsorbents to remove Ni[Formula: see text] and Cu[Formula: see text] from water. The prepared UiO-66-PEI-30 had good adsorption capacity on Ni[Formula: see text] and Cu[Formula: see text] at 30% PEI. The adsorption of Ni[Formula: see text] and Cu[Formula: see text] with UiO-66-PEI-30 was further studied. The role of eluent types, elution time, concentration and volume on the effect of Cu[Formula: see text] elution was investigated. The adsorption of Ni[Formula: see text] and Cu[Formula: see text] by UiO-66-PEI-30 followed the pseudo-second-order kinetic model and Langmuir adsorption model. The maximum adsorption capacities obtained by Langmuir fitting for Ni[Formula: see text] and Cu[Formula: see text] were 11.54[Formula: see text]mg[Formula: see text]g[Formula: see text] and 24.87[Formula: see text]mg[Formula: see text]g[Formula: see text], respectively. After four desorption/adsorption experiments, UiO-66-PEI-30 still showed good adsorption performance. UiO-66 impregnated with PEI was an adsorbent with adsorption potential.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,General Materials Science
Cited by
4 articles.
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