One-step reducing and dispersing graphene oxide via hydroxypropyl hydrazine and its applications in Cu2+ removal. Issue 21 (17th May 2019)

• Record Type: Journal Article
• Authors: Liu, Haohao; Hu, Xinxin; Guo, Haiquan; Zhao, Jianying; Li, Furong; Zhu, Deshuai; Liu, Shaomin
• Is Part Of: Physical chemistry chemical physics. Volume 21:Issue 21(2019)
• Page Start: 10947
• Page End: 10954
• Publication Date: 2019-05-17
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c9cp01648a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Typical photographs of GO, HH-rGO and HPH-rGO suspensions in water and 11 organic solvents for 2 weeks. Abstract : Graphene is widely used in numerous scientific fields including physics, chemistry and materials science due to its exceptional electrical, thermal, optical and mechanical properties. However, the poor solubility/dispersibility strongly limits the practical applications of graphene. In this work, hydroxypropyl hydrazine (HPH) was synthesized to reduce graphene oxide (GO) under mild conditions. The as-produced graphene sheets with a 3D-porous structure show admirable dispersion stability in N, N -dimethylacetamide (DMAc) and the graphene sheets are more effective absorbents for Cu 2+ removal than those reduced by hydrazine hydrate. A mechanism for removal of epoxides and carboxides from GO by HPH has been proposed. This one-step reducing and dispersing process of GO is more efficient, environmentally benign and safer for the bulk-scale production of 3D porous graphene.