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Cadmium Adsorption Characteristic of Cellulose-gel Manufacture using Alkali Solvent

알칼리 용제를 이용하여 제조한 셀룰로오스 겔의 카드뮴 흡착특성

  • Hwang, Kyo-Jung (Dept. of Biological and Environmental Science, Dongguk University) ;
  • Kwon, Gu-Joong (Dept. of Biological and Environmental Science, Dongguk University) ;
  • Yang, Ji-Wook (Dept. of Biological and Environmental Science, Dongguk University) ;
  • Hwang, Won-Jung (Dept. of Forest Products, Korea Forest Research Institute) ;
  • Hwang, Jae-Hyun (Dept. of Food Industrial Management, Dongguk University) ;
  • Kim, Dae-Young (Dept. of Biological and Environmental Science, Dongguk University)
  • 황교정 (동국대학교 바이오환경과학과) ;
  • 권구중 (동국대학교 바이오환경과학과) ;
  • 양지욱 (동국대학교 바이오환경과학과) ;
  • 황원중 (국립산림과학원 임산공학부 목재가공과) ;
  • 황재현 (동국대학교 식품산업관리학과) ;
  • 김대영 (동국대학교 바이오환경과학과)
  • Received : 2015.11.10
  • Accepted : 2015.12.17
  • Published : 2015.12.30

Abstract

This study was carried out to investigate the characterization of cadmium adsorption by cellulose hydrogel and aerogel. Hydrogel and aerogel were made from ashless pulp dissolved in alkali hydroxide-urea aqueous solution and manufactured in film and bead types. After regeneration of cellulose, hydrogel went through the process of substitution of organic solvent and freeze-dry in order to make aerogel. SEM was used to analyze the microstructure of hydrogel and aerogel. Experiment was conducted in various concentrations and pH conditions to find out the characteristic of cadmium adsorption. After that, EDS was used to identify existence and distribution of cadmium in hydrogel and aerogel. The result from comparisons of cadmium adsorption shows that bead type aerogel has the maximum cadmium adsorption and film type hydrogel has the minimum cadmium adsorption.

Keywords

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