title: Graphene oxide-mediated rapid dechlorination of carbon tetrachloride by green rust.
abstract: Graphene-based nanomaterials can mediate environmentally relevant abiotic redox reactions of chlorinated aliphatic hydrocarbons. In this study as low amounts as ∼0.007 % of graphene oxide (GO) was found to catalyze the reduction of carbon tetrachloride by layered Fe(II)-Fe(III) hydroxide (Green Rust, GR) in aqueous solutions with chloroform being the reduction product. On the basis of sorption studies of carbon tetrachloride onto the GO surface it is suggested that it is the amphiphilicity of GO, which initiates the reaction by providing a suitable reaction platform for the reagents. This study indicates that traces of graphene oxide can affect reaction pathways as well as kinetics for dechlorination processes in anoxic sediments by facilitating a partial dechlorination.
authors: Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark. Electronic address: lizhi@plen.ku.dk.
authors: Li-Zhi
authors: LZ
authors: Huang
authors: Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark.
authors: Hans Christian B
authors: HC
authors: Hansen
authors: Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark; Carbon Dioxide Activation Center, Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
authors: Kim
authors: K
authors: Daasbjerg
keywords: Dechlorination mechanism; Graphene; Graphene oxide; Green rust