Progress in preparation, characterization, surface functional modification of graphene oxide: A review

• Published in: Journal of Saudi Chemical Society Vol. 26; no. 6; p. 101560
• Main Authors: Liu, Jingzhong, Chen, Shuping, Liu, Yanan, Zhao, Bijing
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2022; Springer
• Subjects: Characterization; Graphene oxide; Modification; Oxidizing agents; Structure; Characterization; Modification; Graphene oxide; Structure; Oxidizing agents
• ISSN: 1319-6103
• DOI: 10.1016/j.jscs.2022.101560

•GO preparation methods were compared, and GO prepared by the most common Hummers method and the improved Hummers method were compared. The key to GO preparation is the selection of oxidant.•GO representation techniques were summarized, and the relationship between representation and structure was pointed out.•The structure and modification method of GO were studied. The exploration of kicking structure determined the development of modification. Graphene oxide (GO) has become the focus of scientific research due to unique mechanical, optical, electrical and chemical properties. We review the synthesis approaches and formation mechanism of GO, and propose that the crucial factor to the preparation of GO is to find efficient and environmentally friendly oxidant. Various characterization techniques are introduced, and characteristics are summarized. The GO model theories are synopsized, and determining the structure of GO has important influence on its surface modification and its application and development in composite materials. The interaction and reaction types between GO matrix and modified molecules, as well as the properties of modified products were described. In conclusion, the present challenges and future research directions are presented in terms of preparation and surface functional modification for GO.