CAJ | 학술논문

采用水热法制备γ-MnOOH,结果表明在温度140℃,KMnO4的量为0.5g时制备的γ-MnOOH结晶效果良好;以自制的γ-MnOOH与LiOH反应制备出离子筛前驱体,对酸洗后所得的锂离子筛的吸附性能进行了系统研究.研究结果表明,pH值12时吸附量最高,不同初始锂溶液浓度条件下锂的吸附量相差较小,锂离子筛对锂的吸附过程可用Langmuir模型来描述.
채용수열법제비γ-MnOOH,결과표명재온도140℃,KMnO4적량위0.5g시제비적γ-MnOOH결정효과량호;이자제적γ-MnOOH여LiOH반응제비출리자사전구체,대산세후소득적리리자사적흡부성능진행료계통연구.연구결과표명,pH치12시흡부량최고,불동초시리용액농도조건하리적흡부량상차교소,리리자사대리적흡부과정가용Langmuir모형래묘술.
The monoclinic type γ-MnOOH was prepared by hydrothermal reaction. The results showed that the crystal of γ-MnOOH was perfect at the optimum temperature of 140℃ which the mass of KMnO4 is 0.5g. The lithium ion-sieve precursor was synthesized from monoclinic type γ-MnOOH reacting with LiOH solution. The Li+ uptake by the lithium ion-sieve was also studied. The results indicated that there was strong responsive behavior of Li+ uptake to pH and had a maximum uptake when the pH was 12; the equilibrium uptake was adjacent at different initial concentration of lithium solution; the Langmuir isotherm was applied to equilibrium studies.