Abstract
The low cost β-zeolite and ethylenediamine modified β-zeolite (EDA@β-zeolite) were prepared by self-assembly method and used for Cu(II) removal from contaminated aqueous solution. Removal ability of β-zeolite toward Cu(II) was greatly improved after ethylenediamine (EDA) modification, the removal performance was greatly affected by environmental conditions. XPS results illustrated that the amide group played important role in the removal process by forming complexes with Cu(II). The EDA@β-zeolite showed desirable recycling ability. The finding herein suggested that the proposed composite is a promising and suitable candidate for the removal of Cu(II) from contaminated natural wastewater and aquifer.
Highlights
Copper is one of the most common pollutants in water environment around industrial sites, such as paint, metal finishing, electroplating, mining operations, and fertilizer [1]
Ethylenediamine grafted β-zeolite (EDA@β-zeolite) was prepared and used for Cu(II) removal from aqueous solution; the removal performance was examined by batch removal test under various environmental conditions; the related removal mechanism was discussed with the aid of spectroscopy, such as X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), etc
The effect of pH on Cu(II) removal by β-zeolite and EDA@β-zeolite is shown in Figure 1; the results show that Cu(II) removal is strongly dependent on pH
Summary
Copper is one of the most common pollutants in water environment around industrial sites, such as paint, metal finishing, electroplating, mining operations, and fertilizer [1]. The sorption method has drawn interest because of its high efficiency, easy operation, and low cost Many adsorbents, such as oxides [6], porous material [7], chelating resin [8], etc., have been widely proposed for the purification and remediation of contaminated water bodies. Ethylenediamine grafted β-zeolite (EDA@β-zeolite) was prepared and used for Cu(II) removal from aqueous solution; the removal performance was examined by batch removal test under various environmental conditions; the related removal mechanism was discussed with the aid of spectroscopy, such as X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), etc This composite is a potential material in the successful decontamination of copper containing waste water. The results (Figure S1) were revealed that EDA@β-zeolite has good stability in pH range from 4 to 12
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