The detection of typical targets under the background of land war

Wu, Xiaoqing; Chen, Wenjie; Qin, Yingying

doi:10.1109/ccdc.2017.7979256

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…1,2 Specifically, owing to its applications in energy storage, lithium has become key to global development and economic growth. [3][4][5][6][7][8][9][10] In addition, lithium and its compounds are used in bauxite ceramics, medicines, metals and alloys, military technology, and battery storage and power generation. [11][12][13] However, as a result of the large-scale use of lithium as cathode and anode material in lithium-ion batteries for consumer electronics and electric vehicles, it is being rapidly exhausted, [14][15][16][17] and the global demand for lithium sources, which are primarily lithium ore and saltlake brine, has increased significantly.…”

Section: Introductionmentioning

confidence: 99%

Highly selective lanthanide-doped ion sieves for lithium recovery from aqueous solutions

Zheng

Chen

Sun

et al. 2023

Journal of Chemical Research

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The increased global demand for lithium is rapidly depleting the lithium ore reserves. Therefore, attention has turned to the recovery of lithium from aqueous solutions, such as lithium-containing brine. Compared with other methods of lithium recovery, adsorption is energy efficient and simple to implement, increasing demand for selective lithium adsorbents. In this study, a selective lithium-ion adsorbent, H4Ti5– xLa xO12, was synthesized via the sol–gel method, followed by heat treatment and acid washing. The effects of the temperature and degree of lanthanum doping ( x) on the crystalline phase, morphology, lithium-ion adsorption capacity, and lithium-ion selectivity of the ion sieve were investigated, and the optimal synthetic conditions were determined. We found that doping with La3+ cations ( x = 0.01) increased the lithium-ion adsorption capacity (23.96 mg g−1 at 25 °C at pH = 12; 8.2% higher than before doping), rate, and selectivity. In addition, the ion sieve could be used over multiple adsorption–desorption cycles with only a minor reduction in the lithium-ion adsorption capacity (22.88 mg g−1). Overall, these results suggest that doping with La3+ cations stabilized the H4Ti5– xLa xO12 crystal structure, alleviated particle agglomeration, expanded the lithium-ion channels, and decreased the resistance to lithium-ion migration, thus improving adsorption performance. The findings suggest that the proposed ion sieve has practical applications in the selective recovery of lithium from aqueous solutions containing a mixture of metal ions.

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