KCS Publications

HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 44, Number 4
JKCSEZ 44(4)
August 20, 2000

Title	Surface Complexation Modeling of Ni(II), Co(II), and Sr(II)Adsorption on Amorphous Alumina 무정형 알루미나에서의 Ni(II), Co(II),Sr(II)흡착의 표면착물 모델링
Author	Yeong Jae Park, Kyoung Kyun Park, Moo Ynl Sub, Soo Kyouug Yixm,Kwang Soon Choi, Kwamg Yong Jee, Won Ho Kim 박용재, 박경균, 서무율, 윤수경, 최광순, 지광용, 김원호
Keywords
Abstract	일정한이온강도(0.lM)에서 알루미나에의한Ni(Ⅱ),Co(Ⅱ),Sr(Ⅱ)및Cs(Ⅰ)의 흡착거동을 세 가지의 금속이온 농도를 사용하여 pH를 변화시키면서 관찰하였다. 금속 이온의 농도가 증가할수록 흡착률은 감소했으며 흡착변곡점이 보다 높은 pH쪽으로 이동하였다. 금속 이온의 농도가 1.0×10-⁴M인 조건에서 측정한 흡착데이터로부터 표면착물 모델을 적용하여 각 금속의 흡착종에 대한 고유의 흡착상수 값을결정하였다. 흡착 세기는 Co(Ⅱ)>Ni(Ⅱ)>Sr(Ⅱ)순으로 감소하였으며 Cs(Ⅰ)는 흡착이 되지 않았다. 높은 pH에서의 Co(Ⅱ)와 Ni(Ⅱ)의 흡착성이 대부분이 가수분해된 형태로 존재하였다. Adsorpdon behaviors ofNi(Ⅱ), Co(II), Sr(II), and(I) ions were nvestigated on amorphous alumina with varying pH at three different etalion concentrations under the condition of 0.I M ionlc strength.With increasingmctalion concentration, the percentage of adsorption decreased and the adsorption edge was shifted to a higher pH value. The adsorption data obtained usingthe metal ion concentration of 1.O × 1O-⁴M were quantitatively analyzed by surfacecomplexation modelingof Ni(Ⅱ) and Co(Ⅱ) ions adsorbed at high pH (>8)were found to be in hydrolyzed forms.
Page	305 - 310
Full Text	PDF

How to access to the WOL for The Bulletin of the Korean Chemical Society ?

The Bulletin of the Korean Chemical Society will be co-published with Wiley-VCH from 2015 towards. The online version of the Journal will thus be available on Wiley Online Library, Wiley(-VCH)'s global online platform.

KCS members can get a free online access to the Bulletin of the Korean Chemical Society in WOL.

Free Access to WOL