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| Content Provider | Springer Nature Link |
|---|---|
| Author | Liu, Zexiang Shen, Qiuying Zhang, Qiance Bian, Longchun Liu, Yongjun Yuan, Bo Pan, Xuejun Jiang, Fengzhi |
| Copyright Year | 2014 |
| Abstract | In this paper, calcite with cotton morphology was prepared by co-precipitation method using cotton as templates. The effect of contact time, initial concentration, and solution temperature on calcite adsorption of lead ions was studied using a batch technique. The maximal adsorption capacity of calcite for Pb$^{2+}$ was 3347.02 mg/g with a minimum contact time of 60 min. The pseudo-second-order kinetic model and Langmuir/Freundlich isotherms were proposed for modeling kinetic and equilibrium data, respectively. Thermodynamic parameters such as ∆G $^{0}$, ∆H $^{0}$, and ∆S $^{0}$ were calculated to reveal the nature of sorption. Original calcite and the products of adsorption were characterized using SEM, TEM/EDAX, SAED, XRD, and BET. Dissolution of calcite followed by precipitation of lead carbonate was found to be the main operating mechanism for Pb$^{2+}$ adsorption by calcite. |
| Starting Page | 5334 |
| Ending Page | 5344 |
| Page Count | 11 |
| File Format | |
| ISSN | 00222461 |
| Journal | Journal of Materials Science |
| Volume Number | 49 |
| Issue Number | 15 |
| e-ISSN | 15734803 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2014-04-30 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Materials Science Characterization and Evaluation of Materials Polymer Sciences Continuum Mechanics and Mechanics of Materials Crystallography Mechanics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics |
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