화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.26, 277-285, June, 2015
DOI10.1016/j.jiec.2014.11.040  Export Citation
Application of response surface methodology for thorium adsorption on PVA/Fe3O4/SiO2/APTES nanohybrid adsorbent
Gholam Hossein Mirzabe, and Ali Reza Keshtkar1, †
  • Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
  • 1Nuclear Fuel Cycle School, Nuclear Science and Technology Research Institute, Tehran, Iran
E-mail:
A novel Fe3O4@SiO2@APTES/PVA nanohybrid adsorbent for Th(IV) adsorption in batch experiments was synthesized and characterized by FTIR, SEM and BET analyses. The effects of pH, initial concentration and adsorbent dosage were investigated using response surface methodology. The results showed that the maximum Th(IV) adsorption capacity (62.5 mg/g) was achieved under the following conditions: pH 5, adsorbent dosage 1.0 g/L and initial concentration 300 mg/L. Also, the effects of nanoparticles content, contact time and temperature were studied. The kinetic and isotherm data were accurately described by the double-exponential and Langmuir models. The reusability of adsorbent was determined after five adsorption-desorption cycles.
Keywords:Response surface methodology;Th(IV) adsorption;Central composite design;PVA/Fe3O4/SiO2/APTES nanohybrid;Casting
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