A novel silicon-oxygen aurone derivative assisted by graphene oxide as fluorescence chemosensor for fluoride anions

Yongxiao Xu; Qinghua Yang; Duxia Cao; Zhiqiang Liu; Songfang Zhao; Ruifang Guan; Yibing Wang; Qianqian Wu; Xueying Yu

doi:10.1016/j.saa.2017.03.073

A novel silicon-oxygen aurone derivative assisted by graphene oxide as fluorescence chemosensor for fluoride anions

Spectrochim Acta A Mol Biomol Spectrosc. 2017 Jul 5:182:37-41. doi: 10.1016/j.saa.2017.03.073. Epub 2017 Apr 2.

Authors

Yongxiao Xu¹, Qinghua Yang², Duxia Cao³, Zhiqiang Liu⁴, Songfang Zhao¹, Ruifang Guan⁵, Yibing Wang¹, Qianqian Wu¹, Xueying Yu¹

Affiliations

¹ School of Material Science and Engineering, University of Jinan, Jinan 250022, Shandong, China.
² School of Material Science and Engineering, Shandong University, Jinan 250061, Shandong, China.
³ School of Material Science and Engineering, University of Jinan, Jinan 250022, Shandong, China. Electronic address: duxiacao@ujn.edu.cn.
⁴ State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Shandong, China.
⁵ School of Material Science and Engineering, University of Jinan, Jinan 250022, Shandong, China. Electronic address: mse_guanrf@ujn.edu.cn.

PMID: 28391072
DOI: 10.1016/j.saa.2017.03.073

Abstract

A novel silicon-oxygen aurone derivative TBDPSA was synthesized and used for the detection of fluoride anions in aqueous solution based on a specifically F^--triggered silicon-oxygen cleavage. Even though the compound has shown high selectivity, obvious absorption and fluorescence response for fluoride anions in aqueous solution, but it also is suffered from many limits, such as low detection sensitivity and long response time. Here the compound was successfully assembled on the graphene oxide (GO) surface by π-π stacking. GO improves recognition sensitivity and shortens response time of TBDPSA for fluoride anions by taking advantage of the nanocarrier GO. Compared with TBDPSA, the response time of GO/TBDPSA is shortened greatly from 1h to <5s and the detection limit is lowered about four times with fluorescence as detected signal. Generally speaking, GO is an excellent promoter for accelerate recognition.

Keywords: Aurone derivative; Chemosensor; Fluoride anion; Graphene oxide.