| 酰胺功能化SBA-15对铀(Ⅵ)的吸附研究 |
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| 引用本文： | 吕玉龙,彭安国.酰胺功能化SBA-15对铀(Ⅵ)的吸附研究[J].广州化工,2012,40(7):102-105. |
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| 作者姓名： | 吕玉龙 彭安国 |
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| 作者单位： | 1. 南华大学化学与化工学院,湖南衡阳,421001
2. 南华大学核资源与核燃料学院,湖南衡阳,421001 |
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| 摘 要： | 本研究将1-3-(三甲氧基硅烷)丙基]脲基团嫁接在介孔材料SBA-15上,在15℃下实验研究了pH值、离子强度、时间对该材料对铀吸附的影响。介孔材料经过XRD,N2吸附脱附进行表征。结果表明,该材料对UO22+的吸附受pH值、离子强度影响较大,材料对铀酰离子吸附模型符合Langmuir模型,吸附容量达78 mg/mL。
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| 关 键 词： | 介孔二氧化硅 吸附 铀酰离子 功能化 |
The Investigation of Amide Functionalized SBA-15 Materials for Removal of Uranyl |
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| LV Yu-long,PENG An-guo.The Investigation of Amide Functionalized SBA-15 Materials for Removal of Uranyl[J].GuangZhou Chemical Industry and Technology,2012,40(7):102-105. |
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| Authors: | LV Yu-long PENG An-guo |
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| Affiliation: | 1 School of Chemistry and Chemical Engineering,University of South China,Hunan Hengyang 421001;2 School of Nuclear Resources and Nuclear Fuel Engineering,University of South China,Hunan Hengyang 421001,China) |
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| Abstract: | UO_2~（2＋） sorption to the（1-3-（trimethoxysilyl）propyl]urea（UPTS） grafted mesoporous silica SBA-15 materials was carried out at 15 ℃.The materials was characterized by using powder X-ray diffraction（XRD） and N2-BET methods in detail.Effects of UO2＋2 solution concentration,ionic strength,and pH on UO2＋2 sorption to UPTS-SBA-15 were also investigated.The results showed the sorption was strongly dependent on pH values and ionic strength,and the adsorption can be described by the Langmuir equation and the largest theoretical adsorption capacity reached 78 mg/ml. |
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| Keywords: | mesoporous silica sorption uranyl functional |
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