Synthesis and characterization of a surface imprinting silica gel polymer functionalized with phosphonic acid groups for selective adsorption of Fe(III) from aqueous solution

2017 ◽  
Vol 134 (36) ◽  
pp. 45165 ◽  
Author(s):  
Hongxing He ◽  
Qiang Gan ◽  
Changgen Feng
RSC Advances ◽  
2014 ◽  
Vol 4 (78) ◽  
pp. 41597-41604 ◽  
Author(s):  
Jiaxian Ma ◽  
Zheng Wang ◽  
Ying Shi ◽  
Qing Li

A novel lysine-functionalized mesoporous material was synthesized using a facile two-step post-grafting method, selectively adsorbing scandium from aqueous solution.


2010 ◽  
Vol 6 ◽  
pp. 709-712 ◽  
Author(s):  
Julien Monot ◽  
Louis Fensterbank ◽  
Max Malacria ◽  
Emmanuel Lacôte ◽  
Steven J Geib ◽  
...  

In situ formation of two cyclic (alkyl) (amino) carbenes (CAACs) followed by addition of BF3•Et2O provided the first two examples of CAAC–BF3 complexes: 1-(2,6-diisopropylphenyl)-3,5,5-trimethyl-3-phenylpyrrolidin-2-ylidene trifluoroborane, and 2-(2,6-diisopropylphenyl)-3,3-dimethyl-2-azaspiro[4.5]decan-1-ylidene trifluoroborane. These CAAC–BF3 complexes are robust compounds that are stable to ambient laboratory conditions and silica gel chromatography. They were characterized by spectroscopy and X-ray crystallography. In contrast, a CAAC complex with borane (BH3) was readily formed in situ according to 1H and 11B NMR analysis, but did not survive the workup conditions. These results set the stage for further studies of the chemistry of CAAC boranes.


2007 ◽  
Vol 26 (23) ◽  
pp. 5576-5580 ◽  
Author(s):  
Marie-Laurence Dumartin ◽  
Hicham El Hamzaoui ◽  
Bernard Jousseaume ◽  
Marie-Claude Rascle ◽  
Thierry Toupance ◽  
...  

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