TY - JOUR
T1 - Facile synthesis of degradable CA/CS imprinted membrane by hydrolysis polymerization for effective separation and recovery of Li+
AU - Cui, Jiuyun
AU - Zhou, Zhiping
AU - Xie, Atian
AU - Liu, Siwei
AU - Wang, Qianqian
AU - Wu, Yilin
AU - Yan, Yongsheng
AU - Li, Chunxiang
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/2/1
Y1 - 2019/2/1
N2 - Lithium resources are attractive for different applications because of their specific properties. Therefore, it is more significant to find a cost-effective and environment-friendly method to selective adsorption and recovery of Li+. In this work, a renewable and easy degradable CA/CS hybrid membrane was modified with polydopamine as adhesion layer to anchored TiO2. The simple imprinting process could be realized by hydrolysis polymerization. The adsorption process followed Langmuir isotherm model and pseudo-second-order kinetic equation were researched in detail. The results displayed the maximum adsorption capacity is 20.08 mg g−1 for Li+. The selectivity factors of Li+ to Na+, K+, Mg2+ and Ca2+ are 1.78, 2.43, 2.60 and 3.61, respectively, which mainly attributed to imprinting effect. The LIICMs also exhibited the superior reusability and durability. Thus, the LIICMs provide a powerful tool for selective separation and recovery of Li+ from mixed solutions.
AB - Lithium resources are attractive for different applications because of their specific properties. Therefore, it is more significant to find a cost-effective and environment-friendly method to selective adsorption and recovery of Li+. In this work, a renewable and easy degradable CA/CS hybrid membrane was modified with polydopamine as adhesion layer to anchored TiO2. The simple imprinting process could be realized by hydrolysis polymerization. The adsorption process followed Langmuir isotherm model and pseudo-second-order kinetic equation were researched in detail. The results displayed the maximum adsorption capacity is 20.08 mg g−1 for Li+. The selectivity factors of Li+ to Na+, K+, Mg2+ and Ca2+ are 1.78, 2.43, 2.60 and 3.61, respectively, which mainly attributed to imprinting effect. The LIICMs also exhibited the superior reusability and durability. Thus, the LIICMs provide a powerful tool for selective separation and recovery of Li+ from mixed solutions.
KW - Degradable hybrid membrane
KW - Environment-friendly method
KW - Ion imprinted
KW - Lithium
KW - Permselectivity
UR - http://www.scopus.com/inward/record.url?scp=85055902909&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2018.10.094
DO - 10.1016/j.carbpol.2018.10.094
M3 - 文章
C2 - 30446133
AN - SCOPUS:85055902909
SN - 0144-8617
VL - 205
SP - 492
EP - 499
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
ER -
