聊城大学学报（自然科学版）2024，Vol.37Issue(4)：57-63,7.DOI:10.19728/j.issn1672-6634.2024010011
氧化温度对氧化石墨烯结构的影响
Influence of Oxidation Temperature on the Structure of Graphene Oxide
摘要
Abstract
Graphene oxide(GO)containing different functional group structures was prepared by oxidation of graphene materials at high temperature(90℃)and low temperature(40℃).The functional groups,crystal structure,element content,heat resistance,and morphology of the prepared GO were character-ized by Fourier transform infrared spectrometer,X-ray diffractometer,Raman spectrometer,X-ray photo-electron spectrometer,thermogravimetric analysis,and scanning electron microscope.The results showed that the formation of carboxyl groups on GO was favorable at high temperature(GO-H),while the forma-tion of epoxy groups on GO was favorable at low temperature(GO-L).GO prepared by different methods had similar crystal structure,and the defects generated on GO-L(ID/IG=2.16)were higher than those on GO-H(ID/IG=1.41),but the heat resistance of GO-L was higher than that of GO-H.In addition,af-ter the graphene material was oxidized,the layer spacing was increased from the original 0.34 nm to 0.80 nm,which proved that the interlayer force of GO was effectively weakened.This work provided ex-perimental basis and theoretical basis for preparing GO materials with different structures and properties.关键词
石墨烯/氧化石墨烯/氧化温度/耐热性/官能团/晶体结构Key words
graphene/graphene oxide/oxidation temperature/heat resistance/functional group/crystal structure分类
通用工业技术引用本文复制引用
徐长安,胡洋,杨卓鸿..氧化温度对氧化石墨烯结构的影响[J].聊城大学学报（自然科学版）,2024,37(4):57-63,7.基金项目
国家自然科学基金项目(51703067) （51703067）
广东省自然资源厅项目(GDNRC[2021]47) （GDNRC[2021]47）
广东省科技项目(2022A0505050062,2022A1515240079)资助 （2022A0505050062,2022A1515240079）
