Dissolved oxygen detection by galvanic displacement-induced graphene/silver nanocomposite

被引：12

作者：

Fu, Li ^{[1
,2
,3
]}

Zheng, Yuhong ^{[1
,2
]}

Fu, Zhuxian ^{[3
]}

Wang, Aiwu ^{[4
]}

Cai, Wen ^{[4
]}

机构：

[1] Inst Bot, Nanjing 210014, Peoples R China

[2] Chinese Acad Sci, Nanjing Bot Garden, Mem Sun Yat Sen, Nanjing 210014, Peoples R China

[3] Golden Yuanta Construct Engn Co Ltd, Hangzhou 311200, Zhejiang, Peoples R China

[4] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

来源：

BULLETIN OF MATERIALS SCIENCE | 2015年 / 38卷 / 03期

关键词：

Nanocomposite; graphene; dissolved oxygen; sensor; ELECTROCHEMICAL SENSOR; GREEN SYNTHESIS; IN-SITU; OXIDE; FILM; GEL;

D O I：

10.1007/s12034-015-0900-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper proposed a simple, efficient and sensitive electrochemical sensor for dissolved oxygen (DO) detection based on a galvanic displacement synthesized reduced graphene oxide-silver nanoparticles (RGO/Ag) composite modified grassy carbon electrode (GCE). The synthesized RGO/Ag nanocomposite was characterized by UV-vis spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results indicate the graphene oxide (GO) has been successfully reduced during the galvanic displacement process and the average size of Ag nanoparticle is 52 nm. The RGO/Ag nanocomposite-modified GCE showed a significant enhancement of DO detection compared with bare and RGO-modified GCEs. Moreover, the proposed DO sensor also exhibited an excellent repeatability, reproducibility and anti-interference ability.

引用

页码：611 / 616

页数：6

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