In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution
Inorganic/organic hybrid materials play important roles in removal of contaminants from wastewater. Herein, we used the natural materials of halloysite and chitosan to prepare a new adsorbent of NaA zeolite/chitosan porous hybrid beads by in-situ hydrothermal synthesis method. SEM indicated that the...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/71901 |
| _version_ | 1848762604319670272 |
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| author | Yang, K. Zhang, X. Chao, C. Zhang, B. Liu, Jian |
| author_facet | Yang, K. Zhang, X. Chao, C. Zhang, B. Liu, Jian |
| author_sort | Yang, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Inorganic/organic hybrid materials play important roles in removal of contaminants from wastewater. Herein, we used the natural materials of halloysite and chitosan to prepare a new adsorbent of NaA zeolite/chitosan porous hybrid beads by in-situ hydrothermal synthesis method. SEM indicated that the porous hybrid beads were composed of 6-8 µm sized cubic NaA zeolite particles congregated together with chitosan. The adsorption behavior of NH4+from aqueous solution onto hybrid beads was investigated at different conditions. The Langmuir and Freundlich adsorption models were applied to describe the equilibrium isotherms. A maximum adsorption capacity of 47.62 mg/g at 298 K was achieved according to Langmuir model. The regenerated or reused experiments indicated that the adsorption capacity of the hybrid beads could maintain in 90% above after 10 successive adsorption-desorption cycles. The high adsorption and reusable ability implied potential application of the hybrid beads for removing NH4+pollutants from wastewater. © 2014 Elsevier Ltd. |
| first_indexed | 2025-11-14T10:50:12Z |
| format | Journal Article |
| id | curtin-20.500.11937-71901 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:50:12Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-719012018-12-13T09:35:02Z In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution Yang, K. Zhang, X. Chao, C. Zhang, B. Liu, Jian Inorganic/organic hybrid materials play important roles in removal of contaminants from wastewater. Herein, we used the natural materials of halloysite and chitosan to prepare a new adsorbent of NaA zeolite/chitosan porous hybrid beads by in-situ hydrothermal synthesis method. SEM indicated that the porous hybrid beads were composed of 6-8 µm sized cubic NaA zeolite particles congregated together with chitosan. The adsorption behavior of NH4+from aqueous solution onto hybrid beads was investigated at different conditions. The Langmuir and Freundlich adsorption models were applied to describe the equilibrium isotherms. A maximum adsorption capacity of 47.62 mg/g at 298 K was achieved according to Langmuir model. The regenerated or reused experiments indicated that the adsorption capacity of the hybrid beads could maintain in 90% above after 10 successive adsorption-desorption cycles. The high adsorption and reusable ability implied potential application of the hybrid beads for removing NH4+pollutants from wastewater. © 2014 Elsevier Ltd. 2014 Journal Article http://hdl.handle.net/20.500.11937/71901 10.1016/j.carbpol.2014.02.001 Elsevier restricted |
| spellingShingle | Yang, K. Zhang, X. Chao, C. Zhang, B. Liu, Jian In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title | In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title_full | In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title_fullStr | In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title_full_unstemmed | In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title_short | In-situ preparation of NaA zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| title_sort | in-situ preparation of naa zeolite/chitosan porous hybrid beads for removal of ammonium from aqueous solution |
| url | http://hdl.handle.net/20.500.11937/71901 |