Flocculation performance and mechanism of graphene oxide for removal of various contaminants from water
作者： Zhen Yang , Han Yan , Hu Yang , Haibo Li , Aimin Li
DOI: 10.1016/J.WATRES.2013.03.027
关键词:
摘要: The application of nanomaterials in water treatment plants has attracted significant attention recently. This study investigates the possibility using graphene oxide (GO) as a novel flocculant to remove contaminants with different surface charges from water, including two particulate ones (kaolin and hematite) soluble (humic acid (HA) cationic light yellow 7GL dye (7GL)). flocculation performances traditional polyaluminum chloride (PAC) original graphite were also tested for comparison. Fractal theory was applied evaluate floc properties explore mechanism combination zeta potential measurements. For negatively charged contaminants, kaolin HA, GO observed these successfully via sweeping effect under acidic neutral conditions. However, less efficient than PAC. positively hematite 7GL, significantly improved those PAC patching suspension charge neutralization solution. results highlighted extensive applicability suitable treatment.
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