Can Artificial Photosynthesis Enable Infinite Breathing in Space?

[SAZAR]

I've been trying to google-out some things about this issue, but - nevertheless I ask here because this issue seems very interesting:

Is there a way to PURELY ELECTRONICALY (i.e. it doesn't use any NON-REUSABLE chemicals in process that you must replace in order for apparature to function) separate oxygen from carbon-dioxide so you could strap a mask (with such mechanism attached) on yourself, and breath air practicaly indefinitely (as long as there is electric power supply (solar panels on suit or nuclear power generator for air inside rooms at all times)) for use in space, under water, non-brathable atmosphere (...such as... ...well... Mars for example...) etc.

Is it possible (I mean - in ways chemistry works) to make such apparature at all?!...

(...it definitely sounds like an ultimate solution)

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Also it could use water vapour from breath to recombine it with carbon and syntesize sugar. (basicaly - a complete emulation of processes which plants use - that's what I'm talking about...)

 

[nbryan5]

Yes, it is possible to separate oxygen from carbon dioxide using purely electronic means. This can be done through a process called electrolysis. In this process, a current is passed through a solution of water and salt. The oxygen is then released at the anode, while the carbon dioxide is released at the cathode. The oxygen can then be collected, while the carbon dioxide can be vented out. This method is used in many industrial applications and is a viable option for separating oxygen from carbon dioxide in a space or underwater environment.