[Cao, Kesheng; Bai, Suzhen; Sun, Lijuan; Tian, Zhengshan] School of Chemistry and Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China
[Tian, Hao] School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
[Li, Jitao] School of Physics and Telecommunications Engineering, Zhoukou Normal University, Zhoukou 466001, China
[Zhu, Qiuxiang] College of Information and Electronic Engineering, Hunan City University, Yiyang 413000, China
Waste toner powders are considered as hazardous materials to human and living things, and should be properly recycled by many effective ways due to their fine particle sizes and complex components. In this paper, waste toner powders were used as raw materials to successfully synthesize three dimensions (3D) graphene oxide (GO) hydrogel by means of a one-pot chemical transformation based on the improved Hummers' method. The obtained 3D GO hydrogel has porous structure and abundant oxygen-containing functional groups because of the inherent 3D solid structure of waste toner powder and the strong...
