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

Bulletin of materials science

Zhuxian Fu²  Yuhong Zheng⁴  Aiwu Wang¹  Li Fu³  Wen Cai¹ 

[1] Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong$$Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Hong KongDepartment of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong$$;Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR China$$Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR ChinaGolden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR China$$;Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR China$$Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR China$$Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR ChinaInstitute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR China$$Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR China$$Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR ChinaInstitute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR China$$Golden Yuanta Construction Engineering Co., Ltd., Zhejiang 311200, PR China$$;Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR China$$Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR ChinaInstitute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Mem. Sun Yat-Sen, Nanjing 210014, PR China$$

关键词: Nanocomposite;    graphene;    dissolved oxygen;    sensor.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 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

【 授权许可】

Unknown