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Polydopamine functionalized graphene oxide for high sensitivity micro-tapered long period fiber grating sensor and its application in detection Co2+ ions
Kang, Xin1; Wang, Ruiduo2; Jiang, Man1; Li, Erkang1; Li, Yarong1; Yan, Xiaoxin1; Wang, Tianqi1; Ren, Zhaoyu1
作者部门瞬态光学研究室
2022-01
发表期刊Optical Fiber Technology
ISSN10685200
卷号68
产权排序2
摘要

We report a highly sensitive label-free chemical sensor for the detection of heavy metal ions. The sensor was derived from a micro-tapered long-period fiber grating (MTLPFG) functionalized by graphene oxide and poly-dopamine modified graphene oxide, respectively. Because of the combination of chemical bonding and optical tweezer effect, the materials were deposited on the MTLPFG fiber grating surface. The morphology and elemental composition of the nanocomposites were characterized by scanning electron microscope, Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). Herein, we demonstrate a high sensitivity MTLPFG detection of cobalt ions in a large concentration range from 1 ppb to 107 ppb. The highest sensitivity of 2.4 × 10−3 dBppb−1 at the PDA concentrations of 0.05 gL−1 was obtained by MTLPFG functionalized with PDA-GO (PDA-GO-MTLPFG). The result was significantly higher than GO-deposited MTLPFG (GO-MTLPFG). The proposed PDA-GO-MTLPFG demonstrates superior application value in chemical sensing fields. © 2021 Elsevier Inc.

关键词PDA-Graphene oxide Long period fiber grating 2D materials
DOI10.1016/j.yofte.2021.102807
收录类别SCI ; EI
语种英语
WOS记录号WOS:000778313500007
出版者Academic Press Inc.
EI入藏号20220111414607
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/95624
专题瞬态光学研究室
作者单位1.School of Physics, Institute of Photonics & Photon Technology, Northwest University, Xi'an; 710069, China;
2.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
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Kang, Xin,Wang, Ruiduo,Jiang, Man,et al. Polydopamine functionalized graphene oxide for high sensitivity micro-tapered long period fiber grating sensor and its application in detection Co2+ ions[J]. Optical Fiber Technology,2022,68.
APA Kang, Xin.,Wang, Ruiduo.,Jiang, Man.,Li, Erkang.,Li, Yarong.,...&Ren, Zhaoyu.(2022).Polydopamine functionalized graphene oxide for high sensitivity micro-tapered long period fiber grating sensor and its application in detection Co2+ ions.Optical Fiber Technology,68.
MLA Kang, Xin,et al."Polydopamine functionalized graphene oxide for high sensitivity micro-tapered long period fiber grating sensor and its application in detection Co2+ ions".Optical Fiber Technology 68(2022).
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