화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.1, 83-87, January, 2012
DOI10.1016/j.jiec.2011.11.089  Export Citation
Preparation of amino-functionalized silica for copper removal from an aqueous solution
Dang Viet Quang1, 2, Jong Kil Kim3, Pradip B. Sarawade1, Dang Huu Tuan4, and Hee Taik Kim1, †
  • 1Department of Fine Chemical Engineering, Hanyang University, Ansan-si, Gyeonggy-do 426-791, South Korea
  • 2Institute of Environment Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam, Korea
  • 3E&B Nanotech. Co., Ltd., Gimpo, South Korea
  • 4Department of Chemistry and Applied Chemistry, Hanyang University, Ansan-si, Gyeonggy-do 426-791, South Korea
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In the present research, amino-functionalized silica materials were synthesized to develop absorbents for removing copper (II) ions from water. Three kinds of silica with various BET surface areas and pore volumes (331.4 m2/g, 460.1 m2/g, 717.7 m2/g and 1.38 cm3/g, 1.06 cm3/g, 0.57 cm3/g, respectively) were used to determine an optimum material. 3-Aminopropyltrimethoxysilane (3-APTMS) and N-[3-(trimethoxysilyl)propyl]-ethylenediamine (MSDA) are two amino-functional moieties grafted onto silica surfaces. A maximum copper absorption of 33.45 mg/g was confirmed using the aminofunctionalized material at an initial 3-APTMS concentration of 2.52 mmol/g. Silica with a BET surface of 331 m2/g and a pore volume of 1.38 cm3/g demonstrated a good copper absorption capacity. Interference species such as pH, NH3 and EDTA were also studied in this work.
Keywords:Functionalized silica;Copper removal;Absorption
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