Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 52, Issue 14, Pages 7689-7697Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.8b00585
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [71671050, 51278147, 50808052, 51408162]
- HIT Environment and Ecology Innovation Special Funds [HSCJ201606]
- State Key Laboratory of Urban Water Resource and Environment [2016DX02]
- China Postdoctoral Science Special Foundation [2016T90303]
- USDA-NIFA Hatch program [MAS 00475]
- China Scholarship Council
Ask authors/readers for more resources
In this work, the favorable adsorption sites of aromatic compounds (ACs) on graphene oxide (GO) are characterized with both experimental and theoretical approaches. The results show that ACs exhibit a strong preference in adsorbing near the wrinkles and edges. Further analyses reveal that the edge-adsorption is mainly guided by the stronger pi-pi interaction near edges, accompanied by a stronger hydrogen bond interaction between carboxyl groups and ACs. Additionally, the water-mediated steric hindrance and flexibility of carboxyl groups also contribute to the edge-adsorption. A higher density of atoms and electrons is the main mechanism for the wrinkle-adsorption, and structural investigations indicate that the roughness serving as a steric hindrance for the ACs migration also contributes to the wrinkle-adsorption. This wrinkle- and edge-adsorption pattern will shed light on the design of GO-related environmental materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available