Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell
A series of adsorbents were prepared from palm shell powder (PSP) at different thermochemical conditions. APSP was prepared by treating PSP with H 2 SO 4 , PAPSP by further modification of APSP with K 2 S 2 O 8 at 150 °C and 9AAC by thermal activation of APSP at 900 °C. Fourier transform infrared sp...
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SAGE Publishing
2013-06-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.31.6.503 |
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| author | Shilpi Kushwaha Padmaja Sudhakar |
| author_facet | Shilpi Kushwaha Padmaja Sudhakar |
| author_sort | Shilpi Kushwaha |
| collection | DOAJ |
| description | A series of adsorbents were prepared from palm shell powder (PSP) at different thermochemical conditions. APSP was prepared by treating PSP with H 2 SO 4 , PAPSP by further modification of APSP with K 2 S 2 O 8 at 150 °C and 9AAC by thermal activation of APSP at 900 °C. Fourier transform infrared spectroscopy analysis revealed similarity of functional groups in PSP, APSP and PAPSP, suggesting that functional groups are retained during chemical or physical treatment of PSP at 150 °C. A wide pH range (3–8) was found suitable for cadmium and zinc adsorption. The adsorption of Cd 2+ and Zn 2+ was found to be feasible, spontaneous, exothermic, and could be described by the pseudo-second-order kinetic model as well as by Langmuir and Freundlich isotherm models. The maximum adsorption capacity was found to be 363.636 and 238.095 mg/g for Cd 2+ and Zn 2+ , respectively, using PAPSP. Desorption was achieved using HCl and EDTA for Cd 2+ and Zn 2+ , respectively. |
| format | Article |
| id | doaj-art-a70210d82936439482b3f74dbbeb8cb7 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2013-06-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-a70210d82936439482b3f74dbbeb8cb72025-02-03T10:08:00ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382013-06-013110.1260/0263-6174.31.6.503Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm ShellShilpi KushwahaPadmaja SudhakarA series of adsorbents were prepared from palm shell powder (PSP) at different thermochemical conditions. APSP was prepared by treating PSP with H 2 SO 4 , PAPSP by further modification of APSP with K 2 S 2 O 8 at 150 °C and 9AAC by thermal activation of APSP at 900 °C. Fourier transform infrared spectroscopy analysis revealed similarity of functional groups in PSP, APSP and PAPSP, suggesting that functional groups are retained during chemical or physical treatment of PSP at 150 °C. A wide pH range (3–8) was found suitable for cadmium and zinc adsorption. The adsorption of Cd 2+ and Zn 2+ was found to be feasible, spontaneous, exothermic, and could be described by the pseudo-second-order kinetic model as well as by Langmuir and Freundlich isotherm models. The maximum adsorption capacity was found to be 363.636 and 238.095 mg/g for Cd 2+ and Zn 2+ , respectively, using PAPSP. Desorption was achieved using HCl and EDTA for Cd 2+ and Zn 2+ , respectively.https://doi.org/10.1260/0263-6174.31.6.503 |
| spellingShingle | Shilpi Kushwaha Padmaja Sudhakar Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell Adsorption Science & Technology |
| title | Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell |
| title_full | Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell |
| title_fullStr | Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell |
| title_full_unstemmed | Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell |
| title_short | Sorption Mechanism of Cd(II) and Zn(II) onto Modified Palm Shell |
| title_sort | sorption mechanism of cd ii and zn ii onto modified palm shell |
| url | https://doi.org/10.1260/0263-6174.31.6.503 |
| work_keys_str_mv | AT shilpikushwaha sorptionmechanismofcdiiandzniiontomodifiedpalmshell AT padmajasudhakar sorptionmechanismofcdiiandzniiontomodifiedpalmshell |