scholarly journals Design and controllable synthesis of ethylenediamine-grafted ion imprinted magnetic polymers for highly selective adsorption to perchlorate

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29928-29938 ◽  
Author(s):  
Haoyu Shen ◽  
Meina Sun ◽  
Meiqin Hu ◽  
Jinjin Cheng

A series of ethylenediamine-grafted ion imprinted magnetic polymers (Fe3O4@IIPs) were synthesized via ultrasonic assisted suspension polymerization with perchlorate (ClO4−) as an ion imprinting template.

2013 ◽  
Vol 643 ◽  
pp. 83-86 ◽  
Author(s):  
Jing Jing Wang ◽  
Fang Liu

A novel thermoresponsive Cu(II) ion-imprinted hydrogel [Cu(II)-IIH] with interpenetrating network structure has been prepared to remove Cu(II) ions with high selectivity. The Cu(II)-IIH was prepared by free radical/cationic hybrid photopolymerization of N-isopropylacrylamide (NIPAM) and triethylene glycol divinyl ether (DVE-3) using Cu(II) ion as template. The Cu(II)-IIH was used to remove heavy metal ions from aqueous solution at 20 and 40oC. The Cu(II)-IIH selectively bound the template ion above a lower critical solution temperature (LCST) of poly(N-isopropylacrylamide) (PNIPAM). The memory was fixed by shrinking above the LCST, and was deleted by swelling below the LCST. Selective adsorption study indicated that ion imprinting resulted in stronger affinity of the Cu(II)-IIH toward Cu(II) ions than other competitor metal ions compared with the non-imprinted hydrogel (NIH).


RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25258-25265
Author(s):  
Long Liu ◽  
Sheng Chang ◽  
Yan Wang ◽  
Hexiang Zhao ◽  
Shuteng Wang ◽  
...  

An Fe3O4/carboxymethyl cellulose magnetic biosorbent was prepared by ion-imprinting technology, showing good adsorption and selectivity properties for La(iii) with a high recovery efficiency.


2017 ◽  
Vol 9 (10) ◽  
pp. 1658-1664 ◽  
Author(s):  
C. Shi ◽  
G. S. Ding ◽  
A. N. Tang ◽  
Y. Y. Qiao

Highly selective selenite (SeO32−) ion-imprinted polymers (Se(iv)-IIPs) were prepared by the combination of surface ion-imprinting and sol–gel techniques and were then successfully used for the selective removal and preconcentration of Se(iv) in an aqueous solution.


2015 ◽  
Vol 3 (3) ◽  
pp. 1287-1297 ◽  
Author(s):  
Yan Liu ◽  
Xiangguo Meng ◽  
Min Luo ◽  
Minjia Meng ◽  
Liang Ni ◽  
...  

Scheme depicting the ion-imprinting process on GO surface by RAFT polymerization.


2018 ◽  
Vol 921 ◽  
pp. 35-39 ◽  
Author(s):  
Qin Tao Yang ◽  
Qing Lin Xie ◽  
Nan Chun Chen ◽  
Yi Jian Zhong

Owing to the efficient predetermination, specific recognition and wide applicability, metal ion imprinting technology, apply to the wastewater treatment. The principles, synthesis strategies of ion imprinting and typical heavy metal ion imprinted polymers (IIPs) are introduced in the review. Finally, it is pointed out that the futures research problems to be solved and the development direction of metal ion imprinting technology.


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