Low-cost graphene-iron filter

https://phys.org/news/2020-03-low-cost-graphene-iron-filters-gaseous-mixtures.html
"...the filter described in this paper also allowed them to recover valuable resources by selectively separating carbon dioxide from nitrogen...."

That could be very useful!

@humy
If they found a really cheap way to separate H from O in H2O, that would be super useful.

@bunnyknight
Not going to happen with a filter since energy has to be used to split the H from the O, but there may be lesser energy tactics using these kinds of filters.

@sonhouse
"What may seem like fantasy today could be simple science tomorrow."

"What's basic science today was supernatural magic yesterday."

@bunnyknight said
@humy
If they found a really cheap way to separate H from O in H2O, that would be super useful.

@wolfgang59 said
First you have to separate the H2 from the O.
Then split the H2 into H and 2.
Finally ending up with an H, a 2, and an O.

@wolfgang59 said
First you have to separate the H2 from the O.
Then split the H2 into H and 2.
Finally ending up with an H, a 2, and an O.