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| Study on Surface Modification on Nano-CeO2 with Sodium Dodecyl Sulfate |
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Received:February 24, 2012
Revised:February 27, 2012
Accepted:February 27, 2012
Published Online:September 19, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.10.014 |
| KeyWord:nano-CeO2; surface modification; sodium dodecyl sulfate (SDS); activation index |
| Author | Institution |
| LI Mei |
内蒙古科技大学 |
| HAO Wei |
内蒙古科技大学 |
| LIU Zhao-gang |
内蒙古科技大学 |
| HU Yan-hong |
内蒙古科技大学 |
| WANG Mi-tang |
内蒙古科技大学 |
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| Abstract: |
| Surface modification with sodium dodecyl sulfate (SDS) on nano-CeO2 was achieved in order to improve the dispersibility of nano-CeO2 in organic materials. The modification effect characterized by the activation index and structure were described by IR, TG-DSC, TEM and LPSA. The results show that the optimum modification conditions including SDS dosage of 4%, reaction temperature of 70 ℃, reaction time of 6 h and pH=7. SDS is adsorbed on the surface of nano-CeO2 with chemical bond and formed organic coating. The dispersibility of nano-CeO2 modified with SDS is obviously improved, and the granularity is reduced 44%. |
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