| FU WENIONG,LUO BINGKUN,ZHUANG WANJIN,LIU SHIYU,CHEN LIANZHI. 1986. ADSORPTION OF URANYL COMPLEX IONS ON HYDROUS TITANIUM OXIDE Ⅰ. CHEMICAL THERMODYNAMICAL CHARACTERISTICS. Acta Oceanologica Sinica, (2):221－227 |
| ADSORPTION OF URANYL COMPLEX IONS ON HYDROUS TITANIUM OXIDE Ⅰ. CHEMICAL THERMODYNAMICAL CHARACTERISTICS |
| ADSORPTION OF URANYL COMPLEX IONS ON HYDROUS TITANIUM OXIDE Ⅰ. CHEMICAL THERMODYNAMICAL CHARACTERISTICS |
| Received:August 11, 1984 Revised:June 07, 1989 |
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| Author Name | Affiliation | | FU WENIONG | Third Institute of Oceanography, State Oceanic Administration, Xiamen | | LUO BINGKUN | Third Institute of Oceanography, State Oceanic Administration, Xiamen | | ZHUANG WANJIN | Third Institute of Oceanography, State Oceanic Administration, Xiamen | | LIU SHIYU | Third Institute of Oceanography, State Oceanic Administration, Xiamen | | CHEN LIANZHI | Third Institute of Oceanography, State Oceanic Administration, Xiamen |
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| Abstract: |
| An account is given of the thermodynamical characteristics of the adsorption of uranyl complex ions on hydrous titanium oxide (HTO) in NaCl-NaHCO3 solution and in seawater.Determined are the adsorption isotherms and the adsorption density in various pH.The contribution of each component to the adsorption density,the adsorption free energy ΔGads,t,the coulostatic energy ΔGcoul,t,and the cqemisorption potential energy Gchem,t are estimated.The average free energy ΔGads enthalpy change,ΔHads,and entropy change,ΔSads,of the adsorption in this system are -7.33 kcal/mol,6.30 kcal/mol and 45.7 cal/mol K respectively.It is hereof concluded that the complex chemisorption process is spontaneous and thermonegativc. |
| 中文摘要: |
| An account is given of the thermodynamical characteristics of the adsorption of uranyl complex ions on hydrous titanium oxide (HTO) in NaCl-NaHCO3 solution and in seawater.Determined are the adsorption isotherms and the adsorption density in various pH.The contribution of each component to the adsorption density,the adsorption free energy ΔGads,t,the coulostatic energy ΔGcoul,t,and the cqemisorption potential energy Gchem,t are estimated.The average free energy ΔGads enthalpy change,ΔHads,and entropy change,ΔSads,of the adsorption in this system are -7.33 kcal/mol,6.30 kcal/mol and 45.7 cal/mol K respectively.It is hereof concluded that the complex chemisorption process is spontaneous and thermonegativc. |
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