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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhu, Jianzhong Yang, John Deng, Baolin |
| Copyright Year | 2009 |
| Abstract | This study is to develop a carbon-based adsorbent containing multiple functional ligands for effective removal of lead ions from aqueous media. Activated carbon was oxidized by nitric acid, followed by chlorination with thionyl chloride and reaction with ethylenediamine. Modified activated carbon (MAC) was characterized using scanning electron microscopy in conjunction of energy dispersive spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FT-IR), and potentiometric titration. Surface characterizations confirmed that carboxyl, amine, and chlorine functional groups were effectively introduced onto the carbon surface by the treatments. The modifications lowered the pH at the point of zero charge (pHpzc) from 9.6 to 2.55 and resulted in more negatively charged surfaces. Adsorptive experiments showed that aqueous Pb removal by MAC was faster, with a 62% higher capacity than the original activated carbon (60.2 vs. 37.2 mg g−1). |
| Starting Page | 277 |
| Ending Page | 282 |
| Page Count | 6 |
| File Format | |
| ISSN | 16103653 |
| Journal | Environmental Chemistry Letters |
| Volume Number | 8 |
| Issue Number | 3 |
| e-ISSN | 16103661 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-04-09 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Activated carbon Chemical modification Multiple functional groups Lead adsorption Water quality Geochemistry Analytical Chemistry Pollution Environmental Chemistry Ecotoxicology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry |
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