Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters
The surface charge σ 0 on aqueous suspensions of alumina was measured as a function of pH in various NaNO 3 concentrations and at different temperatures. The values of the point of zero charge (p.z.c.), pK 1(int) , pK 2(int) , pK Na+(int) and pK NO3–(int) for alumina suspended in NaNO 3 solutions we...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
1997-06-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749701500606 |
| _version_ | 1826904942863974400 |
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| author | Chu Taiwei Du Jinzhou Tao Zuyi |
| author_facet | Chu Taiwei Du Jinzhou Tao Zuyi |
| author_sort | Chu Taiwei |
| collection | DOAJ |
| description | The surface charge σ 0 on aqueous suspensions of alumina was measured as a function of pH in various NaNO 3 concentrations and at different temperatures. The values of the point of zero charge (p.z.c.), pK 1(int) , pK 2(int) , pK Na+(int) and pK NO3–(int) for alumina suspended in NaNO 3 solutions were obtained in the temperature range 17–45°C from potentiometrie titration data. The values of ΔS 0 and ΔH 0 of the dissociation equilibria and complexation equilibria were calculated from these equilibrium constants. Standard Gibbs energies, enthalpies and entropies for proton adsorption on alumina were also obtained. The surface charge σ 0 on aqueous suspensions of alumina was measured as a function of pH and concentration of Ca(NO 3 ) 2 or Na 2 SO 4 solution. |
| first_indexed | 2024-03-07T17:12:21Z |
| format | Article |
| id | doaj.art-ee805a1d73914004b1b94fdcf1183860 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2025-02-17T08:21:13Z |
| publishDate | 1997-06-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-ee805a1d73914004b1b94fdcf11838602025-01-02T23:11:47ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40381997-06-011510.1177/026361749701500606Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic ParametersChu TaiweiDu JinzhouTao ZuyiThe surface charge σ 0 on aqueous suspensions of alumina was measured as a function of pH in various NaNO 3 concentrations and at different temperatures. The values of the point of zero charge (p.z.c.), pK 1(int) , pK 2(int) , pK Na+(int) and pK NO3–(int) for alumina suspended in NaNO 3 solutions were obtained in the temperature range 17–45°C from potentiometrie titration data. The values of ΔS 0 and ΔH 0 of the dissociation equilibria and complexation equilibria were calculated from these equilibrium constants. Standard Gibbs energies, enthalpies and entropies for proton adsorption on alumina were also obtained. The surface charge σ 0 on aqueous suspensions of alumina was measured as a function of pH and concentration of Ca(NO 3 ) 2 or Na 2 SO 4 solution.https://doi.org/10.1177/026361749701500606 |
| spellingShingle | Chu Taiwei Du Jinzhou Tao Zuyi Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters Adsorption Science & Technology |
| title | Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters |
| title_full | Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters |
| title_fullStr | Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters |
| title_full_unstemmed | Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters |
| title_short | Adsorption of H, OH and Background Electrolyte Ions on Alumina — Point of Zero Charge, Triple Layer Model (TLM) Parameters and Thermodynamic Parameters |
| title_sort | adsorption of h oh and background electrolyte ions on alumina point of zero charge triple layer model tlm parameters and thermodynamic parameters |
| url | https://doi.org/10.1177/026361749701500606 |
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