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- Title
Synthesis of AgCl/PES hybrid membranes and their application in removing iodide ion.
- Authors
Fengqin Yu; Haizeng Wang
- Abstract
AgCl/PES hybrid membrane adsorbents with different AgCl contents for iodide ion were prepared by in situ synthesized phase inversion method. Scanning electron microscopy and X-ray diffraction (XRD) analysis confirmed the presence of silver chloride on the hybrid membrane adsorbent. Brunauer, Emmett, and Teller adsorption/desorption found that the membranes have the same isotherm type, but the adsorbed quantity increased with the content of the AgCl. The kinetics of iodide adsorption exhibited that the rate-limiting step may be chemical sorption between sorbent and sorbate. The composite adsorbents used in this study have been proved to be an effective iodide adsorbent with a biggest adsorption capacity of 551 mg g−1. Fourier transform infrared spectroscopy and XRD analyses for the membrane after reaction with iodide confirmed that chloride was exchanged with iodide to form AgI(s). This study can provide a promising method to address radioactive I– pollution in water.
- Subjects
RADIOACTIVE pollution of water; FOURIER transform infrared spectroscopy; POLYETHERSULFONE; IODIDES; SILVER chloride; SCANNING electron microscopy
- Publication
Desalination & Water Treatment, 2018, Vol 109, p45
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2018.22041