期刊论文

中文

广州化工

1001-9677

2012

40

7

102-105

10.3969/j.issn.1001-9677.2012.07.036

本校为第一机构

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 th...