Journal
AIP ADVANCES
Volume 5, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4936846
Keywords
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Funding
- Jiangsu Province Research Joint Innovation Fund-Prospective Joint Research Project [BY2014123-08]
- Scientific Research Foundation for Talented Scholars of Jiangsu University [10JDG039]
- Open Fund of State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences [Y052010043]
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Flocculation treatment processes play an important role in water and wastewater pretreatment. Here we investigate experimentally and theoretically the possibility of using graphene oxide (GO) as a flocculant to remove methylene blue (MB) from water. Experimental results show that GO can remove almost all MB from aqueous solutions at its optimal dosages and molecular dynamics simulations indicate that MB cations quickly congregate around GO in water. Furthermore, PIXEL energy contribution analysis reveals that most of the strong interactions between GO and MB are of a van der Waals (London dispersion) character. These results offer new insights for shedding light on the molecular mechanism of interaction between GO and organic pollutants. (C) 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
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