An improved Hummers method to synthesize graphene oxide using much less concentrated sulfuric acid

作     者：Yanbin Zhu Gang Kong Yuling Pan Lian Liu Bo Yang Shuanghong Zhang Delin Lai Chunshan Che Yanbin Zhu;Gang Kong;Yuling Pan;Lian Liu;Bo Yang;Shuanghong Zhang;Delin Lai;Chunshan Che

作者机构：School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China Guangzhou Special Pressure Equipment Inspection and Research InstituteGuangzhou 510663China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2022年第33卷第10期

页      面：4541-4544页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the Guangzhou Municipal Science and Technology Bureau(Nos.202002030368 202102080408)for financial support 

主　　题：Graphene oxide Carbon materials Oxidation Low acid Hummers method 

摘      要：The production of graphene oxide with less acid is beneficial to reduce the costs and lower the impact on the environment,but it is still a great *** this work,a relatively simple,safe method for synthesizing graphene oxide with much less acid(decrease∼40%)is *** assistance of the heat absorbed from environment and reaction system,the temperature of reaction system of low acid can be well *** interestingly,the graphite can be completely oxidized into graphite oxide by using much less acid,with lowering the production of high-concentration aqueous waste acid(1 mol/L,decrease∼40%).A series of characterizations show that the prepared graphene oxide has similar yield and functional groups compared with that of using the conventional *** work provides a safe and environmentally friendly choice for the large-scale production of graphene oxide and its derivative materials.