Adsorption of cesium on mesoporous SBA-15 material containing embedded copper hexacyanoferrate

被引：14
|
作者：
Xiang, Sulin [1 ]
Zhang, Xu [1 ]
Tao, Qinqin [1 ]
Dai, Ying [2 ]
机构：
[1] East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 320卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Copper hexacyanoferrate; Mesoporous silica; Cesium; Adsorption; PRUSSIAN BLUE; AQUEOUS-SOLUTION; RADIOACTIVE CESIUM; EFFECTIVE REMOVAL; CS+; RADIONUCLIDE; EQUILIBRIUM; SEPARATION; HYDROGEL;
D O I：
10.1007/s10967-019-06523-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this research, the copper hexacyanoferrate/SBA-15 composite was prepared by embedding method, which was further characterized using scanning electron microscope, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller, transmission electron microscopy and X-ray diffraction. The effects of different factors such as pH, temperature, contact time, initial cesium concentration on adsorption were studied. The pH significantly influenced the adsorption. The pseudo second-order kinetic model fitted the adsorption well, indicating chemisorption. The Langmuir isotherm proved that the adsorption happened on monolayer and the maximum adsorption capacity was determined as 0.123mmol/g. The result showed that CHCF/SBA-15 could be directly used to adsorb cesium from aqueous solution.
引用
收藏
页码：609 / 619
页数：11
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