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Adsorbent for Arsenic(V) Removal Synthesized by Radiation-Induced Graft Polymerization onto Nonwoven Cotton Fabric
Environment and Industrial Materials Research Division, Quantum Beam Science Directorate
ERH Techno Research Co., Ltd., Takasaki, Japan
Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency, Takasaki, Japan
Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency, Takasaki, Japan
- 1 Environment and Industrial Materials Research Division, Quantum Beam Science Directorate
- 2 ERH Techno Research Co., Ltd., Takasaki, Japan
- 3 Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency, Takasaki, Japan
- 4 Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency, Takasaki, Japan
International Journal of Organic Chemistry·Volume 02 (2012)·Pages 173–177·Published 25 September 2012·DOI10.4236/ijoc.2012.23026
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Abstract
A fibrous adsorbent for arsenic (As) removal was synthesized with nonwoven cotton fabric as a trunk polymer. 2-hydroxyethyl methacrylate phosphoric acid monomer which composed of phosphoric acid mono (50%) and di (50%) ethyl methacrylate ester was introduced with radiation-induced graft polymerization onto nonwoven cotton fabric. The degree of grafting of 130% was obtained at irradiation dose of 20 kGy with 5% of monomer solution for 2 hours reaction time at 40?C reaction temperature. After the grafted material was contacted with 10 mmol/L of zirconium (Zr) solution at pH 1, 0.38 mmol/g of Zr was loaded on phosphoric units as a functional group for As(V) removal. The resulting adsorbent was evaluated by column mode adsorption with 1 mg/L of As(V) solution at various pH with space velocity 200 h–1. The maximum capacity of As(V) adsorption was 0.1 mmol/g at pH 2.
KeywordsArsenic RemovalCottonRadiation-Induced Graft PolymerizationPhosphoric AcidZirconium
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