Preparation of Titanium-lithium Ion Sieve by the Inorganic Precipitation-peptization Method and Its Adsorption Performance
ZHANG Liyuan1,2, YOU Yaohui1,2, LIU Yiwu1,2, RUAN Shangquan1,2
1 College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang 641112 2 Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College, Neijiang 641112
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.
张理元, 由耀辉, 刘义武, 阮尚全. 无机沉淀胶溶法制备钛锂离子筛及其吸附性能研究[J]. 材料导报, 2019, 33(24): 4056-4061.
ZHANG Liyuan, YOU Yaohui, LIU Yiwu, RUAN Shangquan. Preparation of Titanium-lithium Ion Sieve by the Inorganic Precipitation-peptization Method and Its Adsorption Performance. Materials Reports, 2019, 33(24): 4056-4061.
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2019, Vol. 33 
