Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids
The formation of Am(Ⅲ) colloid and its adsorption behaviors on bentonite colloid were investigated in Beishan 03 groundwater. A series of influencing factors, such as, pH, CO2 concentration in gas atmosphere, ionic strength and temperature, on colloidal stability and adsorption behavior were explore...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Nuclear and Radiochemistry
2022-12-01
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| Series: | He huaxue yu fangshe huaxue |
| Subjects: | |
| Online Access: | http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021084 |
| _version_ | 1797220503192076288 |
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| author | LIU Chen FANG Sheng XU Qiang-wei XU Yu-wei LONG Hao-qi BAO Liang-jin ZHOU Duo |
| author_facet | LIU Chen FANG Sheng XU Qiang-wei XU Yu-wei LONG Hao-qi BAO Liang-jin ZHOU Duo |
| author_sort | LIU Chen |
| collection | DOAJ |
| description | The formation of Am(Ⅲ) colloid and its adsorption behaviors on bentonite colloid were investigated in Beishan 03 groundwater. A series of influencing factors, such as, pH, CO2 concentration in gas atmosphere, ionic strength and temperature, on colloidal stability and adsorption behavior were explored using Zeta potential laser particle size analyzer, asymmetric flow field flow fractionation system(AF4) and batch experimental method. The results show that the formation and stability of Am(Ⅲ) are closely dependent on the chemical natures of aqueous solution. Increasing temperature or increasing ionic strength will reduce the stability of Am(Ⅲ) colloids, while the increase of carbon dioxide concentration and pH will be beneficial to the stability of Am(Ⅲ) colloid. In addition, with the increase of pH, the density of Am(Ⅲ)-bentonite colloid particles increases, while the Am(Ⅲ) adsorption rate first decreases and then increases; the increase of ionic strength is favor of Am(Ⅲ) adsorption, but the density of colloidal particles decreases; the increase of CO2 concentration in gas phase has a promoting effect on particle density and Am(Ⅲ) adsorption. |
| first_indexed | 2024-04-24T12:50:34Z |
| format | Article |
| id | doaj.art-f49ee73ff6f047f58620a29f5f5f084a |
| institution | Directory Open Access Journal |
| issn | 0253-9950 |
| language | zho |
| last_indexed | 2024-04-24T12:50:34Z |
| publishDate | 2022-12-01 |
| publisher | Editorial Office of Journal of Nuclear and Radiochemistry |
| record_format | Article |
| series | He huaxue yu fangshe huaxue |
| spelling | doaj.art-f49ee73ff6f047f58620a29f5f5f084a2024-04-06T05:48:46ZzhoEditorial Office of Journal of Nuclear and RadiochemistryHe huaxue yu fangshe huaxue0253-99502022-12-0144661061810.7538/hhx.2022.YX.2021084Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite ColloidsLIU Chen0FANG Sheng1XU Qiang-wei2XU Yu-wei3LONG Hao-qi4BAO Liang-jin5ZHOU Duo6China Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyThe formation of Am(Ⅲ) colloid and its adsorption behaviors on bentonite colloid were investigated in Beishan 03 groundwater. A series of influencing factors, such as, pH, CO2 concentration in gas atmosphere, ionic strength and temperature, on colloidal stability and adsorption behavior were explored using Zeta potential laser particle size analyzer, asymmetric flow field flow fractionation system(AF4) and batch experimental method. The results show that the formation and stability of Am(Ⅲ) are closely dependent on the chemical natures of aqueous solution. Increasing temperature or increasing ionic strength will reduce the stability of Am(Ⅲ) colloids, while the increase of carbon dioxide concentration and pH will be beneficial to the stability of Am(Ⅲ) colloid. In addition, with the increase of pH, the density of Am(Ⅲ)-bentonite colloid particles increases, while the Am(Ⅲ) adsorption rate first decreases and then increases; the increase of ionic strength is favor of Am(Ⅲ) adsorption, but the density of colloidal particles decreases; the increase of CO2 concentration in gas phase has a promoting effect on particle density and Am(Ⅲ) adsorption.http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021084am(ⅲ)colloidsstabilityaf4adsorption |
| spellingShingle | LIU Chen FANG Sheng XU Qiang-wei XU Yu-wei LONG Hao-qi BAO Liang-jin ZHOU Duo Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids He huaxue yu fangshe huaxue am(ⅲ) colloids stability af4 adsorption |
| title | Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids |
| title_full | Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids |
| title_fullStr | Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids |
| title_full_unstemmed | Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids |
| title_short | Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids |
| title_sort | stability of am iii colloid and its adsorption behavior on bentonite colloids |
| topic | am(ⅲ) colloids stability af4 adsorption |
| url | http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021084 |
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