Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal
A series of zwitterionic hybrid membranes were prepared via the ring opening of 1,3-propanesultone with the amine groups in the chains of TMSPEDA and a subsequent sol-gel process. Their kinetic models for strontium removal were investigated using three two-parameter kinetic equations (i.e., Lagergre...
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/485820 |
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| author | Wen Zhu Junsheng Liu Meng Li |
| author_facet | Wen Zhu Junsheng Liu Meng Li |
| author_sort | Wen Zhu |
| collection | DOAJ |
| description | A series of zwitterionic hybrid membranes were prepared via the ring opening of 1,3-propanesultone with the amine groups in the chains of TMSPEDA and a subsequent sol-gel process. Their kinetic models for strontium removal were investigated using three two-parameter kinetic equations (i.e., Lagergren pseudo-first order, pseudo-second order, and Elovich models). Adsorption mechanism was evaluated using intraparticle diffusion model, diffusion-chemisorption model, and Boyd equation. It was found that the adsorption of strontium ions on these zwitterionic hybrid membranes fitted well with the Lagergren pseudo-second order model. Mechanism insights suggested that diffusion-chemisorption was one of the main adsorption mechanisms. Boyd equation exhibited that film-diffusion mechanism might be the control process during the starting period. These findings are very useful in strontium removal from the stimulated radioactive wastewater. |
| format | Article |
| id | doaj-art-a6b0ca00961e41bd8d1d682c1ab2aa96 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-a6b0ca00961e41bd8d1d682c1ab2aa962025-02-03T06:07:21ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/485820485820Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium RemovalWen Zhu0Junsheng Liu1Meng Li2Key Laboratory of Membrane Materials & Processes, Department of Chemical and Materials Engineering, Hefei University, 99 Jinxiu Avenue, Hefei Economic and Technological Development Zone, Hefei 230601, ChinaKey Laboratory of Membrane Materials & Processes, Department of Chemical and Materials Engineering, Hefei University, 99 Jinxiu Avenue, Hefei Economic and Technological Development Zone, Hefei 230601, ChinaKey Laboratory of Membrane Materials & Processes, Department of Chemical and Materials Engineering, Hefei University, 99 Jinxiu Avenue, Hefei Economic and Technological Development Zone, Hefei 230601, ChinaA series of zwitterionic hybrid membranes were prepared via the ring opening of 1,3-propanesultone with the amine groups in the chains of TMSPEDA and a subsequent sol-gel process. Their kinetic models for strontium removal were investigated using three two-parameter kinetic equations (i.e., Lagergren pseudo-first order, pseudo-second order, and Elovich models). Adsorption mechanism was evaluated using intraparticle diffusion model, diffusion-chemisorption model, and Boyd equation. It was found that the adsorption of strontium ions on these zwitterionic hybrid membranes fitted well with the Lagergren pseudo-second order model. Mechanism insights suggested that diffusion-chemisorption was one of the main adsorption mechanisms. Boyd equation exhibited that film-diffusion mechanism might be the control process during the starting period. These findings are very useful in strontium removal from the stimulated radioactive wastewater.http://dx.doi.org/10.1155/2014/485820 |
| spellingShingle | Wen Zhu Junsheng Liu Meng Li Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal The Scientific World Journal |
| title | Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal |
| title_full | Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal |
| title_fullStr | Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal |
| title_full_unstemmed | Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal |
| title_short | Fundamental Studies of Novel Zwitterionic Hybrid Membranes: Kinetic Model and Mechanism Insights into Strontium Removal |
| title_sort | fundamental studies of novel zwitterionic hybrid membranes kinetic model and mechanism insights into strontium removal |
| url | http://dx.doi.org/10.1155/2014/485820 |
| work_keys_str_mv | AT wenzhu fundamentalstudiesofnovelzwitterionichybridmembraneskineticmodelandmechanisminsightsintostrontiumremoval AT junshengliu fundamentalstudiesofnovelzwitterionichybridmembraneskineticmodelandmechanisminsightsintostrontiumremoval AT mengli fundamentalstudiesofnovelzwitterionichybridmembraneskineticmodelandmechanisminsightsintostrontiumremoval |