Journal
LANGMUIR
Volume 34, Issue 12, Pages 3661-3668Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.8b00005
Keywords
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Funding
- National Natural Science Foundation of China [21665006, 21265004]
- Natural Science Foundation of Guangxi Zhuang Autonomous Region [2017GXNSFAA118064, 2015GXNSFFA139005]
- project of high level innovation team and outstanding scholar in Guangxi colleges and universities [[2014]49]
- Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area
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Reduced graphene oxide (RGO)-hybridized polymeric high-internal phase emulsions (RGO/polyHlPEs) with an open-cell structure and hydrophobicity have been successfully prepared using 2-ethylhexyl acrylate and ethylene glycol dimethacrylate as the monomer and the cross-linker, respectively. The adsorption mechanism and performance of this RGO/polyHIPEs to polycyclic aromatic hydrocarbons (PAHs) were investigated. Adsorption isotherms of PAHs on RGO/polyHlPEs show that the saturated adsorption capacity is 47.5 mg/g and the equilibrium time is 8 h. Cycling tests show that the adsorption capacity of RGO/polyHIPEs remains stable in 10 adsorption desorption cycles without observable structure change in RGO/polyHIPEs. Moreover, the PAH residues in water samples after being purified by RGO/polyHIPEs are lower than the limit values in drinking water set by the European Food Safety Authority. These results demonstrate that the RGO/polyHIPEs have great potentiality in PAR removal and water purification.
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