| REN Yun,LIU Hui-min,SHI Zhi-ming.Study on Absorption and Stability of Sodium Citrate ori Nario-A1203 Colloform System[J],36(4):22-24 |
| Study on Absorption and Stability of Sodium Citrate ori Nario-A1203 Colloform System |
| Received:April 02, 2007 Revised:August 10, 2007 |
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| DOI： |
| KeyWord:Absorption quantity Sodium citrate UV spectrum Nano-alumina powder |
| Author | Institution |
| REN Yun |
School of Materials Science and Engineering, Inner Mongolia University of Technology, Huhhot , China |
| LIU Hui-min |
School of Materials Science and Engineering, Inner Mongolia University of Technology, Huhhot , China |
| SHI Zhi-ming |
School of Materials Science and Engineering, Inner Mongolia University of Technology, Huhhot , China |
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| Abstract: |
| In order to reduce surfacation active of nano-alumina, make full use of its nano advantage , adsorption characteristic of sodium citrate on nano-alumina was analyzed qualitatively by sedimentation and viscosity experiments. And adsorption quantity of sodium citrate on nano-alumina was measured under pH = 10 by UV spectrum. The wavelength was 198nm. Adsorption images were observed by TEM. The results show that adsorption behaviors accord with langmuir monolayer adsorption. The maximum of adsorption is l. 583mg/mL. When pH value is 10 and the amount of sodium citrate relative to nano-alumina is 2. 5 percent, the viscosity and the sedimentation velocity can get the lowest value. That is to say, stability and adsorptive capability reach optimal effect, together. |
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