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- Title
Preparation of Magnetic MIL-68(Ga) Metal–Organic Framework and Heavy Metal Ion Removal Application.
- Authors
Zhang, Youjun; Liu, Licong; Yu, Dixiong; Liu, Jinglan; Zhao, Lin; Liu, Jinpeng; Liu, Shuo
- Abstract
A magnetic metal–organic framework nanocomposite (magnetic MIL-68(Ga)) was synthesized through a "one pot" reaction and used for heavy metal ion removal. The morphology and elemental properties of the nanocomposite were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), as well as zeta potential. Moreover, the factors affecting the adsorption capacity of the nanocomposite, including time, pH, metal ion type and concentration, were studied. It was found that the adsorption capacity of magnetic MIL-68(Ga) for Pb2+ and Cu2+ was 220 and 130 mg/g, respectively. Notably, the magnetic adsorbents could be separated easily using an external magnetic field, regenerated by ethylenediaminetetraacetic acid disodium salt (EDTA-Na2) and reused three times, in favor of practical application. This study provides a reference for the rapid separation and purification of heavy metal ions from wastewater.
- Subjects
METAL ions; ETHYLENEDIAMINETETRAACETIC acid; METAL-organic frameworks; HEAVY metals; X-ray powder diffraction; SODIUM dichromate
- Publication
Molecules, 2022, Vol 27, Issue 11, p3443
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules27113443