Journal
ENVIRONMENTAL TECHNOLOGY
Volume 38, Issue 8, Pages 996-1004Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2016.1215352
Keywords
Adsorption; graphene oxide; Fe(3)o(4); polyethylenimine; nanocomposite
Categories
Funding
- NSFC [21501106, 21301103, 51272115]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- Natural Science Foundation of Shandong Province [ZR2012EMM001, ZR2012FZ007, 2012EML08]
- Taishan Scholarship
- Qingdao Municipal Science and Technology Commission [15-9-1-65-jch]
- Shandong Province Higher Educational Science and Technology Program [J15LA12, J13LA10]
Ask authors/readers for more resources
Graphene oxide/ferroferric oxide/polyethylenimine (GO/Fe3O4/PEI) nanocomposites were synthesized by an in situ growth of Fe3O4 nanoparticles on GO sheets, and then modified by PEI. The GO/Fe3O4/PEI nanocomposites showed extremely high removal efficiency for anionic dye Congo Red (CR) due to the positively charged PEI molecules ( methylene blue was also tested but with low adsorption capacity due to its cationic property). The CR removal capacity was 574.7 mg g(-1), higher than most of reported results. The adsorption kinetics could be well described by a pseudo-second-order model. Furthermore, GO/Fe3O4/PEI nanocomposites could be easily recycled by magnetic separation. The removal efficiency remained above 70% after five cycles.
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
Share Paper
