Carbon Monoxide

I need a physical, chemical, electric or magnetic reaction that can do one of the following:

Separate CO into C and O
Change the physical state of CO (gas to solid)
Attract CO molecules to a physical substance or electric charge
Turn CO into a different molecule

Catalytic converters do this, somehow. (2CO + O₂ → 2CO₂)
You're probably doing something wrong, though. Why do you think you need to know this?

Filtration or removal of CO from the air.  Turning it to Carbon Dioxide would not help. 

>>3
Why not? CO is poisonous, CO₂ is relatively harmless. Depends on what OP needs it for.

Just lower the temperature to under 82 K and scoop it up.

Cocks