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Adsorption of cesium on mesoporous SBA-15 material containing embedded copper hexacyanoferrate
被引:15
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
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.
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页码:609 / 619
页数:11
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