Silver-loaded carbon nanofibers for ammonia sensing

e-Polymers

Yu Jing¹  Long Yun-Ze²  Sui Jinxia²  Zhang Shanxiang²  Xin Xin²  Yu Yang²  Wang Xiaoxiong² 

[1] Collaborative Innovation Center for Light Manipulations and Applications, Shandong Normal University, Jinan, 250358, China;Collaborative Innovation Center for Nanomaterials and Devices, College of Physics, Qingdao University, Qingdao, 266071, China;

关键词: electrospinning;    carbon nanofibers;    sensors;   

DOI  :  10.1515/epoly-2020-0056

来源: DOAJ

【 摘 要 】

Carbon nanofibers (CNFs) were prepared by electrospinning, and silver (Ag) ions were grown on the surface of the CNFs by in situ solution synthesis. The structure and morphology of obtained Ag-doped CNFs (Ag-CNFs) were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The gas sensibility of the composite fiber was investigated by ammonia (NH3) obtained by natural volatilization from 1 to 4 mL of NH3 solution at room temperature. It was found that the fibers exhibited a sensitive current corresponding to different NH3 concentrations and a greater response at high concentrations. The sensing mechanism was discussed, and the good absorptivity was demonstrated. The results show that Ag-CNF is a promising material for the detection of toxic NH3.

【 授权许可】

Unknown