Details

Autor(en) / Beteiligte

• Liu, Haohao
• Hu, Xinxin
• Guo, Haiquan
• Zhao, Jianying
• Li, Furong
• Zhu, Deshuai
• Liu, Shaomin

Titel

One-step reducing and dispersing graphene oxide hydroxypropyl hydrazine and its applications in Cu removal

Ist Teil von

• Physical chemistry chemical physics : PCCP, 2019-05, Vol.21 (21), p.1947-1954

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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. Typical photographs of GO, HH-rGO and HPH-rGO suspensions in water and 11 organic solvents for 2 weeks.