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酰胺功能化SBA-15对铀(Ⅵ)的吸附研究 被引量：2

The Investigation of Amide Functionalized SBA-15 Materials for Removal of Uranyl
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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。 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.
作者 吕玉龙 彭安国
机构地区 南华大学化学与化工学院 南华大学核资源与核燃料学院
出处 《广州化工》 CAS 2012年第7期102-105,共4页 GuangZhou Chemical Industry
关键词 介孔二氧化硅 吸附 铀酰离子 功能化 mesoporous silica sorption uranyl functional
分类号 TL941 [核科学技术—辐射防护及环境保护]
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参考文献24

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二级参考文献12

共引文献25

同被引文献21

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广州化工
2012年 第7期

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