期刊
APPLIED SURFACE SCIENCE
卷 513, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2020.145396
关键词
GO; rGO; UV-Vis Spectroscopy; Raman; Bandgap
类别
资金
- University Grants Commission
- Department of Science and Technology (DST), Government of India
- DST
- Council of Scientific & Industrial Research (CSIR), India
- Deanship of Scientific Research at King Khalid University [R.G.P. 1/24/38]
In the present investigation we report a comparative study of Graphene Oxide (GO) in regard to its bandgap variations arising due to different reduction methods such as thermal reduction (Heating), electrical reduction (Voltage Application) and chemical reduction (Hydrazine hydrate). This study reveals that among the GO three reduction method studied the voltage application is the most efficient one. It is found that band gap increases with decreasing carbon to oxygen (C/O) ratio and is found to be maximum, i.e. similar to 4, for the case of GO reduced via voltage application reduction method. The GO for the present study was synthesized by modified Hummer's Method in four batches out of which the three obtained solutions were reduced by thermal reduction, Voltage application and Hydrazine hydrate. The four resultant materials were investigated by XRD, FTIR, UV-Vis, SEM-EDX and Raman analysis. The variation of band gap of GO and reduced graphene oxide (rGO) was found to be GO 3.34 eV , TrGO (Heating) 2.96 eV, HrGO (Hydrazine) 2.68 eV and VrGO (Voltage application) 2.54 eV, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据