Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120
The work has immobilized N,N′-dimethyl-N,N′-dioctyldiglcolamide(DMDODGA) on the porous adsorption resin P120 by using vacuum immobilization and infusion technology to synthesize a new supramolecular recognition material DMDODGA/P120. Then, scanning electron microscopy(SEM), Fourier transform infrare...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Nuclear and Radiochemistry
2022-06-01
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| Series: | He huaxue yu fangshe huaxue |
| Subjects: | |
| Online Access: | http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021044 |
| _version_ | 1797220478201364480 |
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| author | FAN Lei WANG Wen-tao ZHANG Ye LIU Yue-kun |
| author_facet | FAN Lei WANG Wen-tao ZHANG Ye LIU Yue-kun |
| author_sort | FAN Lei |
| collection | DOAJ |
| description | The work has immobilized N,N′-dimethyl-N,N′-dioctyldiglcolamide(DMDODGA) on the porous adsorption resin P120 by using vacuum immobilization and infusion technology to synthesize a new supramolecular recognition material DMDODGA/P120. Then, scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), elemental analysis(C, H, N, O) were used to characterize the material. The results show that most of DMDODGA are successfully loaded into the pores of P120, and the load is about 53.1 g DMDODGA per 100 g P120. The structure of the carrier(P120) was not destroyed. Through static adsorption experiments, the effects of contaction time, initial concentration of Sr2+, the concentration of HNO3, solid-to-liquid ratio between adsorbent material and liquid and temperature on the adsorption performance of DMDODGA/P120 have been studied. And its kinetic curve and adsorption isotherm have been analyzed. Besides, the desorption process and radiation stability of DMDODGA/P120 have been studied. And the penetration curve of DMDODGA/P120 has been studied through dynamic adsorption experiments. The results show that the adsorption equilibrium time of DMDODGA/P120 is about 10 min, and the adsorption process conforms to the quasi-second-order kinetic equation, indicating that the process is chemical adsorption. The adsorption process of Sr2+ is a single-layer chemical adsorption that occurs on the surface of the adsorbent. The adsorption performance of DMDODGA/P120 increases first and then decreases with the increase of acidity. The adsorption process is exothermic. The solid-to-liquid ratio between the adsorbent material and the liquid during the adsorption process can be controlled at about 20 g/L. DMDODGA/P120 has a good radiation resistance. It won’t be a greater degree of radiolysis until the radiation dose reaches 106 Gy. The dynamic adsorption result of DMDODGA/P120 shows that the exchange column is broken down in 5-6 column volumes, and the total removal rate of Sr2+ is about 52.53%. |
| first_indexed | 2024-04-24T12:50:10Z |
| format | Article |
| id | doaj.art-95640ac294c54e77b23d0604668ee15e |
| institution | Directory Open Access Journal |
| issn | 0253-9950 |
| language | zho |
| last_indexed | 2024-04-24T12:50:10Z |
| publishDate | 2022-06-01 |
| publisher | Editorial Office of Journal of Nuclear and Radiochemistry |
| record_format | Article |
| series | He huaxue yu fangshe huaxue |
| spelling | doaj.art-95640ac294c54e77b23d0604668ee15e2024-04-06T05:48:45ZzhoEditorial Office of Journal of Nuclear and RadiochemistryHe huaxue yu fangshe huaxue0253-99502022-06-0144336637610.7538/hhx.2022.YX.2021044Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120FAN Lei0WANG Wen-tao1ZHANG Ye2LIU Yue-kun3China Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyThe work has immobilized N,N′-dimethyl-N,N′-dioctyldiglcolamide(DMDODGA) on the porous adsorption resin P120 by using vacuum immobilization and infusion technology to synthesize a new supramolecular recognition material DMDODGA/P120. Then, scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), elemental analysis(C, H, N, O) were used to characterize the material. The results show that most of DMDODGA are successfully loaded into the pores of P120, and the load is about 53.1 g DMDODGA per 100 g P120. The structure of the carrier(P120) was not destroyed. Through static adsorption experiments, the effects of contaction time, initial concentration of Sr2+, the concentration of HNO3, solid-to-liquid ratio between adsorbent material and liquid and temperature on the adsorption performance of DMDODGA/P120 have been studied. And its kinetic curve and adsorption isotherm have been analyzed. Besides, the desorption process and radiation stability of DMDODGA/P120 have been studied. And the penetration curve of DMDODGA/P120 has been studied through dynamic adsorption experiments. The results show that the adsorption equilibrium time of DMDODGA/P120 is about 10 min, and the adsorption process conforms to the quasi-second-order kinetic equation, indicating that the process is chemical adsorption. The adsorption process of Sr2+ is a single-layer chemical adsorption that occurs on the surface of the adsorbent. The adsorption performance of DMDODGA/P120 increases first and then decreases with the increase of acidity. The adsorption process is exothermic. The solid-to-liquid ratio between the adsorbent material and the liquid during the adsorption process can be controlled at about 20 g/L. DMDODGA/P120 has a good radiation resistance. It won’t be a greater degree of radiolysis until the radiation dose reaches 106 Gy. The dynamic adsorption result of DMDODGA/P120 shows that the exchange column is broken down in 5-6 column volumes, and the total removal rate of Sr2+ is about 52.53%.http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021044amido podandextractionadsorption resindmdodga/p120adsorptionsr2+ |
| spellingShingle | FAN Lei WANG Wen-tao ZHANG Ye LIU Yue-kun Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 He huaxue yu fangshe huaxue amido podand extraction adsorption resin dmdodga/p120 adsorption sr2+ |
| title | Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 |
| title_full | Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 |
| title_fullStr | Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 |
| title_full_unstemmed | Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 |
| title_short | Adsorption Behavior of Sr2+ on Solid Phase Adsorption Material DMDODGA/P120 |
| title_sort | adsorption behavior of sr2 on solid phase adsorption material dmdodga p120 |
| topic | amido podand extraction adsorption resin dmdodga/p120 adsorption sr2+ |
| url | http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021044 |
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