AN EQUILIBRIUM STUDY OF ADSORPTION OF DIVALENT METAL IONS ONTO A METAL OXIDE ADSORBENT
スポンサーリンク
概要
- 論文の詳細を見る
Equilibrium adsorption behavior of divalent metal ions onto hydrous titanium (IV) oxide (HTO) was studied. A general equilibrium adsorption equation was derived from three simultaneous equilibrium reactions: (1) hydrolysis of metal ions to the hydroxides, (2) deprotonation of hydroxyl groups (adsorption sites) on HTO’s surface and (3) complexation, of the hydroxides with the deprotonated sites. The theoretical equilibrium adsorption equation was confirmed by several experimental results under acidic or basic conditions using uranium, lead, cadmium and zinc ions as the adsorbates. It is demonstrated that two parameters within the equation provide information about the adsorption capacity and the selectivity of adsorbent for target metal ions. The HTO employed here had available sites of 7.15 × 10–4 mol·g–1 for all experiments. Metal ions were adsorbed preferentially on the HTO in the following sequence: Zn2+ < Cd2+ < Pb2+ < UO22+.
- 社団法人 化学工学会の論文
- 1994-08-20
著者
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SUZUKI AKIRA
Department of Hospital Pharmacy
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Seki H
Div. Of Marine Life Sci. Graduate School Of Fisheries Sciences Hokkaido Univ. Minato-cho 3-1-1 Hakod
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Maruyama Hideo
Div. Of Marine Life Sci. Graduate School Of Fisheries Sciences Hokkaido Univ. Minato-cho 3-1-1 Hakod
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Maruyama Hideo
Research Laboratory Brother Industries Ltd.
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Maruyama Hideo
Department Of Physics Faculty Of Science Kwansei Gakuin University
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SEKI Hideshi
Department of Chemistry, Faculty of Fisheries, Hokkaido University
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Seki Hideshi
Department Of Chemistry Faculty Of Fisheries Hokkaido Unviersity
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Suzuki Akira
Department Of Biology Faculty Of Education Chiba University
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Suzuki Akira
Department Of Anesthesiology And Intensive Care Hamamatsu University School Of Medicine
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