无机沉淀胶溶法制备钛锂离子筛及其吸附性能研究

doi:10.11896/cldb.19040259

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Abstract H2TiO₃-titanium-lithium adsorbent was prepared with titanium sulfate and lithium acetate as main materials via inorganic precipitation-peptization method. The specific surface area, pore structure, crystal phase, composition of chemical elements and concentrations of Li⁺ and Ti⁴⁺ were decided by BET, XRD, XPS and ICP-OES, respectively. The adsorption isotherm and kinetics were also studied. The results indicated that the number of mesoporous structure, the pore volume and the specific surface area of the product increased effectively after the addition of so-dium dodecyl benzene sulfonate (SDBS). The adsorption of lithium ion by the adsorbent accorded better with the Freundlich model as compared with the Langmuir model, which indicated that the adsorption of Li⁺ was not monolayer adsorption. The kinetic process of adsorption was coincident with the pseudo-second-order kinetic model, indicating that the adsorption style was chemical adsorption.

Key words： surfactant titanium-lithium ionic-sieve precipitation-peptization method adsorption performance

Published: 25 December 2019 Online: 2019-10-28

CLC number:

O647.3

Fund:This work was financially supported by Sichuan Science and Technology Program (2019YJ0383) and Doctoral Research Initiation Fund of Neijiang Normal University (15B16).

About author: Liyuan Zhang received his Ph.D. degree in December 2014 from Sichuan University in materials. He is currently an associate professor in College of Chemistry and Chemical Engineering, Neijiang Normal University. His research interests are inorganic functional materials, environmental protection materials, and recycling of waste. He presided over one Sichuan Science and Technology Program and one key project of Sichuan Education Department. In the past five years, he published more than 20 academic papers in important journals at home and abroad, including 10 SCI papers.Yaohui You graduated from Sichuan University in June 2014 with a Ph.D. degree in biomass chemistry and engineering. He is currently an associate professor, distinguished professor and a member of the academic committee of College of Chemistry and Chemical Enginee-ring, Neijiang Normal University. He presided over one National Natural Science Foundation of China and one Major Science and Technology Support Plan of Sichuan Province. He published more than 20 papers by the first author or correspondent author, and two invention patents were granted with the first inventor. He has been awarded the discipline leader of Neijiang City, and is also a graduate student instructor of Sichuan University of Science & Engineering.

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	ZHANG Liyuan
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Cite this article:

ZHANG Liyuan,YOU Yaohui,LIU Yiwu, et al. Preparation of Titanium-lithium Ion Sieve by the Inorganic Precipitation-peptization Method and Its Adsorption Performance[J]. Materials Reports, 2019, 33(24): 4056-4061.

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http://www.mater-rep.com/EN/10.11896/cldb.19040259 OR http://www.mater-rep.com/EN/Y2019/V33/I24/4056

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