화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.43, 127-132, November, 2016
DOI10.1016/j.jiec.2016.07.058  Export Citation
Iron-loaded zein beads as a biocompatible adsorbent for arsenic(V) removal
Sineephan Thanawatpoontawee1, Apichat Imyim1, 2, and Narong Praphairaksit1, †
  • 1Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
  • 2Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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This work aims to modify zein, a corn protein, to be a biocompatible adsorbent for the removal of As(V) from water. This adsorbent was prepared by the incorporation of iron(III) chloride into 50% (w/v) of zein in ethanol and water (70:30 (v/v)) and dropping into cold water (5 °C) to form adsorbent beads. In the batch operation, various parameters, i.e., pH of solution, iron loading concentration, competing ions and adsorption time, were studied. Under the optimum conditions, the As(V) adsorption appeared to follow the Langmuir isotherm model with the maximum adsorption capacity of 1.95 mg/g.
Keywords:Arsenic(V);Adsorption;Zein;Biocompatible
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