Enhanced dehalogenation of halogenated methanes by bimetallic Cu/Al.

摘要: A low-cost and high effective copper/aluminum (Cu/Al) bimetal has been developed for treatments of halogenated methanes, including dichloromethane, in near neutral pH aqueous systems. Bimetallic Cu/Al was prepared by a simple two-step synthetic method where Cu deposited onto the Al surface. The presence on significantly enhanced rates degradation methanes reduced toxic intermediates. stability preliminarily studied multi-spiking batch experiment complete carbon tetrachloride achieved seven times although aging found. Roles may involve protecting against an undesirable oxidation with water, enhancing reaction through galvanic corrosion, increasing selectivity to benign compound (i.e., methane). Kinetic analyses indicated that activity bimetallic comparable iron-based bimetals (e.g., palladized iron) zero-valent metals. could be promising reactive reagent remediation solvents-contaminated groundwater associated problems.