Influence of graphene oxide on the transport and deposition behaviors of colloids in saturated porous media.
作者： Shengnan Peng , Dan Wu , Zhi Ge , Meiping Tong , Hyunjung Kim
DOI: 10.1016/J.ENVPOL.2017.03.064
关键词:
摘要: The effects of graphene oxide (GO) on the transport and deposition behaviors colloids with different sizes in packed quartz sand were investigated both NaCl (10 50 mM) CaCl2 solutions (1 5 mM) at pH 6. Fluorescent carboxylate-modified polystyrene latex microspheres (CMLs) size ranging from 0.2 to 2 μm utilized as model colloids. Both breakthrough curves retained profiles presence absence GO suspensions under all examined solution conditions analyzed. three different-sized CMLs higher yet lower than those without ionic strengths solutions. observation showed that increased decreased However, solutions, opposite was achieved two strength conditions. Specifically, 1 mM whereas, it 5 mM Comparison versus yielded overall copresent agreed well porous media clearly controlled by present study due adsorption onto surfaces. Our once released into natural environment, would adsorb (interact with) types thus have significant influence fate media.
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