A metallic filter effectively removes mercury vapor from gas streams. The filter captures the mercury which then can be released and collected as product. The metallic filter is a copper mesh sponge plated with a six micrometer thickness of gold. The filter removes up to 90% of mercury vapor from a mercury contaminated gas stream.
The subject invention was made with government support under a research project supported by the Department of Energy, Grant No. DE-FC26-02NT41607. The government has certain rights in this invention.