吸附
锂(药物)
溶解
纺纱
纤维
筛子(范畴论)
材料科学
化学工程
复合数
地温梯度
热液循环
比表面积
洗脱
化学
复合材料
色谱法
有机化学
催化作用
地质学
地球物理学
数学
内分泌学
工程类
组合数学
医学
作者
Haoran Li,Jiayu Qin,Kaiyu Zhao,Yafei Guo,Bojia Tong,Murodjon Samadiy,Umarbek Alimov,Tianlong Deng
标识
DOI:10.1016/j.jclepro.2023.139997
摘要
With the increasing application of the industrialization of lithium and its derivatives, there has been a surge of interest in recovering this resource from liquid sources. However, synthesizing adsorbents with industrial significance is still a significant challenge. Herein, the precursor Li1.6Mn1.6O4 of H1.6Mn1.6O4 powder absorbent with the highest theoretical adsorption capacity and the lowest Mn dissolution loss rate was first synthesized by hydrothermal or high-temperature solid phase method. The commercialized wet spinning apparatus, which has convenient operation and a simple process, was used to prepare PVDF/HMO spinning fiber to recover lithium resources from geothermal water. It has a large specific surface area of 31.45 m2 g−1 and a pore size of 9.04 nm, and the adsorption capacity was 14.95 mg g−1, with the distribution coefficient of Li+ being 1404.96 mL g−1. Furthermore, the equilibrium was reached within just 2 h at pH 12, and the elution time was just 1 h. Even after the fifth cycle, the adsorption capacity remained high at 14.21 mg g−1. These characteristics indicate that the new material has excellent application potential for lithium recovery from geothermal water.
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