Issue 80, 2017
From the journal:

RSC Advances

A study on the synthesis and anion recognition of a chitosan-urea receptor

Kuerbanjiang Rouzi, ORCID logo ab   Abuderixiti Abulikemu,c   Jie Zhaoa  and  Biao Wu*a  

* Corresponding authors

a Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, P. R. China
E-mail: wubiao@nwu.edu.cn, krbnjn2003@126.com
Fax: +86 29 81535020
Tel: +86 29 81535020

b Institute of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, P. R. China

c College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, P. R. China
E-mail: aarexit@mail.ustc.edu.cn

Abstract

A new chitosan based colorimetric anion receptor bearing nitrophenyl as a chromogenic signal group, and urea moiety as recognition site was designed and synthesized. The receptor structure was characterized by FTIR and 1H NMR. The sensing abilities of the receptor for anions were investigated with UV-vis methods. During the addition of PO43− and F− anions, the sensor responded with a dramatic color change, and no change was observed in the presence of other anions. The UV-vis absorption titration data showed that the receptor shows selective recognition and sensing in DMSO-H2O (1%) for PO43− and F− anions. The Job's curve showed that 3 : 2 stoichiometry complexes were formed between the receptor and the anion.

Graphical abstract: A study on the synthesis and anion recognition of a chitosan-urea receptor

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Article information

DOI
https://doi.org/10.1039/C7RA09431K
Article type
Paper
Submitted
25 Aug 2017
Accepted
08 Oct 2017
First published
01 Nov 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 50920-50927

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A study on the synthesis and anion recognition of a chitosan-urea receptor

K. Rouzi, A. Abulikemu, J. Zhao and B. Wu, RSC Adv., 2017, 7, 50920 DOI: 10.1039/C7RA09431K

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