CAJ | 학술논문

将锂锰氧化物（Li1.6Mn1.6O4）添加到聚偏氟乙烯（PVDF）铸膜液中，通过相转化法制备了掺杂Li1.6Mn1.6O4的锂离子筛前驱体膜，经过盐酸处理洗脱锂离子后制得锂离子筛膜。采用X射线衍射、扫描电镜、吸附实验等手段对膜的结构和吸附性能进行表征。吸附实验表明，随着Li1.6Mn1.6O4含量的增加，锂离子筛膜的吸附量先增加后减小。当添加Li1.6Mn1.6O4的质量分数为15％时，锂离子筛膜的吸附量最高为6．98×10^2mg／cm^3。
장리맹양화물（Li1.6Mn1.6O4）첨가도취편불을희（PVDF）주막액중，통과상전화법제비료참잡Li1.6Mn1.6O4적리리자사전구체막，경과염산처리세탈리리자후제득리리자사막。채용X사선연사、소묘전경、흡부실험등수단대막적결구화흡부성능진행표정。흡부실험표명，수착Li1.6Mn1.6O4함량적증가，리리자사막적흡부량선증가후감소。당첨가Li1.6Mn1.6O4적질량분수위15％시，리리자사막적흡부량최고위6．98×10^2mg／cm^3。
A series of lithium-ion sieve precursor membrane with different amounts of spinel-type manganese ox- ide (Li1.6Mn1.6O4) were prepared by the phase-inversion process. The membrane was treated with HC1 solution to extract lithium, resulting in the lithium-ion sieve membrane. The structure and properties of the prepared lithium-ion sieve precursor membranes were characterized by means of SEM, XRD and adsorption experiments. Adsorption experiments show that adsorption capacity of membrane-type adsorbents increase with the amount of Li1.6Mn1.6O4 from 5% up to 15%. Further increasing the amount of Li1.6Mn1.6O4, the adsorption capacity of membrane-type adsorbents decreases. It indicates that the optimal content of Li1.6Mn1.6O4 embedded into the PVDF polymer matrix is 15% with the maximums adsorption capacity of 6.98× 10^2mg/cm2.