계면활성제와 실리카 몰비의 조절에 따른 구형 MCM-48의 합성

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이하영;박상원
Lee, Ha-Young;Park, Sang-Won

  • 투고 : 2008.01.24
  • 심사 : 2010.05.06
  • 발행 : 2010.06.30

초록

Mesoporous silica was prepared from hydrothermal synthesis using gel mixture of tetraethylorthosilcate (TEOS) as silica source and cetyltrimethylammonium bromide (CTMABr) as a surfactant. In the optimum synthesis cause, molar ratio of template and silica changed. The surface and structure properties of mesoporous silica were determined by XRD, SEM, TEM and BET. Also, surface potential of mesoporous silica was measured using zeta potential. $N_2$ adsorption isotherm characteristics, including the specific surface area ($S_{BET}$), total pore volume $V_T$), and average pore diameter ($D_{BJH}$), were determined by BET. As a result, SBET of $100m^2/g{\sim}1500m^2/g$ was determined from the $N_2$ adsorption isotherm. Also, the average pore diameter was 2 nm∼4 nm. Mesoporous silica's surface potential of minus charge was determined from zeta potential.

키워드

Mesoporous silica;MCM-48;Zeta potential;Pb;Cd

참고문헌

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피인용 문헌

  1. 1. Adsorptive Removal of Nitrate and Phosphate Using MCM-48, SBA-15, Chitosan, and Volcanic Pumice vol.226, pp.12, 2015, doi:10.5322/JES.2010.19.6.681