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Synthesis of H4Mn5O12 Nanotubes Lithium Ion Sieve and Its Adsorption Properties for Li+ from Aqueous Solution
Xu, Naicai; Li, Sixia; Guo, Min; Qian, Zhiqiang; Li, Wu; Liu, Zhong
2019-09-06
发表期刊CHEMISTRYSELECT
ISSN2365-6549
卷号4期号:33页码:9562-9569
摘要Li4Mn5O12 with nanotubes morphology was successfully prepared by hydrothermal and solid phase reaction. The asobtained adsorbent was determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM) and N2 ad/desorption technologies. The characterization results indicated that spinel H4Mn5O12 took on two-dimensional nanotubes morphology with the diameter of pore similar to 200 nm, BET surface area is 92.997 m(2).g(-1), and the corresponding pore size centers at 3.4, 35.9 and 156.5 nm. The adsorption experimental results showed that the maximum Li+ adsorption capacity of H4Mn5O12 was as high as 37.0 mg.g(-1), and the adsorption process fit well with Langmuir model. In addition, adsorption kinetic experimental data were well fitted by the pseudo-second-order model, which indicated the adsorption process followed chemisorption involving in ion exchange. The effects of co-existing cations on lithium recovery suggested that Na+, K+, Ca2+ and Mg2+ ions had very small effect on recovery of lithium. The regeneration of H4Mn5O12 for the multicyclic Li+ adsorption and desorption were also assessed. The result implied that most of Li+ could be desorbed within 40 min, but the adsorption capacity decreased when the number of cycles was five, which indicated that the structure of H4Mn5O12 was needed to be improved. Lithium adsorption onto H4Mn5O12 could be attributed to electrostatic interaction and ion exchange between Li+ and H+ according to the results of adsorption isotherm and kinetics properties.
DOI10.1002/slct.201901764
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文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/34109
专题盐湖资源与化学实验室
中国科学院青海盐湖研究所
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Xu, Naicai,Li, Sixia,Guo, Min,et al. Synthesis of H4Mn5O12 Nanotubes Lithium Ion Sieve and Its Adsorption Properties for Li+ from Aqueous Solution[J]. CHEMISTRYSELECT,2019,4(33):9562-9569.
APA Xu, Naicai,Li, Sixia,Guo, Min,Qian, Zhiqiang,Li, Wu,&Liu, Zhong.(2019).Synthesis of H4Mn5O12 Nanotubes Lithium Ion Sieve and Its Adsorption Properties for Li+ from Aqueous Solution.CHEMISTRYSELECT,4(33),9562-9569.
MLA Xu, Naicai,et al."Synthesis of H4Mn5O12 Nanotubes Lithium Ion Sieve and Its Adsorption Properties for Li+ from Aqueous Solution".CHEMISTRYSELECT 4.33(2019):9562-9569.
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