TY - JOUR
T1 - Efficient recovery of neodymium in acidic system by free-standing dual-template docking oriented ionic imprinted mesoporous films
AU - Zheng, Xudong
AU - Zhang, Fusheng
AU - Liu, Enli
AU - Xu, Xuechao
AU - Yan, Yongsheng
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2017/1/11
Y1 - 2017/1/11
N2 - Neodymium (Nd) is critical component of sintered neodymium magnets. Separation of Nd from consumer magnets has attracted a widespread attention. In this paper, we presented free-standing ionic imprinted mesoporous film materials for facile and highly efficient targeted separation of Nd from permanent magnets by dual-template docking oriented ionic imprinting (DTDOII) method. DTD-OII is based on dual-template docking oriented molecular imprinting. Compared with conventional imprinting, this novel strategy does not need extra steps, but significantly advance imprinted efficiency. With optimization of functional monomer, our free-standing dual-template docking oriented ionic imprinted mesoporous films exhibit excellent adsorption of Nd by solid-liquid extraction. The Nd adsorption capacity for optimized films was 34.98 mg g-1 under pH = 3.0. The distribution coefficient of Nd was 636 mL g-1, which indicates films possess significantly selectivity of Nd. In addition, efficient dual-template docking oriented ionic imprinting makes films demonstrating an outstanding of reusability by cycle test, which appreciating their potential for industrial application.
AB - Neodymium (Nd) is critical component of sintered neodymium magnets. Separation of Nd from consumer magnets has attracted a widespread attention. In this paper, we presented free-standing ionic imprinted mesoporous film materials for facile and highly efficient targeted separation of Nd from permanent magnets by dual-template docking oriented ionic imprinting (DTDOII) method. DTD-OII is based on dual-template docking oriented molecular imprinting. Compared with conventional imprinting, this novel strategy does not need extra steps, but significantly advance imprinted efficiency. With optimization of functional monomer, our free-standing dual-template docking oriented ionic imprinted mesoporous films exhibit excellent adsorption of Nd by solid-liquid extraction. The Nd adsorption capacity for optimized films was 34.98 mg g-1 under pH = 3.0. The distribution coefficient of Nd was 636 mL g-1, which indicates films possess significantly selectivity of Nd. In addition, efficient dual-template docking oriented ionic imprinting makes films demonstrating an outstanding of reusability by cycle test, which appreciating their potential for industrial application.
KW - Biotemplate
KW - Dual-template docking orienting
KW - Imprinted mesoporous films
KW - Neodymium recovery
KW - Selective separation
UR - http://www.scopus.com/inward/record.url?scp=85016326686&partnerID=8YFLogxK
U2 - 10.1021/acsami.6b13049
DO - 10.1021/acsami.6b13049
M3 - 文章
C2 - 27991769
AN - SCOPUS:85016326686
SN - 1944-8244
VL - 9
SP - 730
EP - 739
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 1
ER -