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Self-healing material can build itself from carbon in the air

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Re: Self-healing material can build itself from carbon in the air

#21
post #20

I wonder how efficient it is. If a square meter of the material were to be placed in 1000w/m² sunlight, how many grams of carbon can it scrub per hour? Can the carbon be easily recovered? How many break/repair cycles can this material do without deforming or degrading?

If this material can convert carbon much more efficiently than plants, it would indeed be a game changer.

Re: Self-healing material can build itself from carbon in the air

#22
post #6

Could you “clean the air” by creating many such breaks and having it pull co2 out of the air?

Technically yes, but practically no. It'd be a very inefficient and slow way to "clean the air. The materials still need to be invested with whatever energy (e.g. glucose) is going to be consumed by the process, and once it finishes you're stuck with some hardened inert lumps which may not be cheaply recycle-able. Pound of cure, ounce of prevention -- the cheapest and easiest way to clean the air is top stop putting…

> probably the best approach involves reusing existing plant or algae species. and simply harvesting them to bury in such a way that they won't be uncovered for a couple hundred million years.

As a bonus, you're helping out a future civilization by seeding their oil reserves. Talk about paying it forward...

Re: Self-healing material can build itself from carbon in the air

#25
post #6

Could you “clean the air” by creating many such breaks and having it pull co2 out of the air?

Technically yes, but practically no. It'd be a very inefficient and slow way to "clean the air. The materials still need to be invested with whatever energy (e.g. glucose) is going to be consumed by the process, and once it finishes you're stuck with some hardened inert lumps which may not be cheaply recycle-able. Pound of cure, ounce of prevention -- the cheapest and easiest way to clean the air is top stop putting…

As far as I’m aware, plants are fairly inefficient at absorbing carbon from the atmosphere.

It’s conceivable a process could be created that pulls carbon from the atmosphere more efficiently while not hsving to deal with all the other mess biological live entails.

It’s also possible you’re right, this isn’t possible, and biological life is the best we’ve got.

Re: Self-healing material can build itself from carbon in the air

#26
post #22
post #6

Earlier quoted context omitted.

Technically yes, but practically no. It'd be a very inefficient and slow way to "clean the air. The materials still need to be invested with whatever energy (e.g. glucose) is going to be consumed by the process, and once it finishes you're stuck with some hardened inert lumps which may not be cheaply recycle-able. Pound of cure, ounce of prevention -- the cheapest and easiest way to clean the air is top stop putting…

> probably the best approach involves reusing existing plant or algae species. and simply harvesting them to bury in such a way that they won't be uncovered for a couple hundred million years. As a bonus, you're helping out a future civilization by seeding their oil reserves. Talk about paying it forward...

Maybe that's what happened last time.

Re: Self-healing material can build itself from carbon in the air

#27
So, the self filling water bottles don't work because of the energy required to extract H2O out of the air is excessive (think how much electricity is required for your dehumidifier) ... Extracting carbon from the CO2 in the air is going to need a heap more, I would have thought.

I'm not a physicist though, would be glad to be proven wrong.

It does sound very much like a "solar freaking roadways" type effort though.

Re: Self-healing material can build itself from carbon in the air

#28
post #20

I wonder how efficient it is. If a square meter of the material were to be placed in 1000w/m² sunlight, how many grams of carbon can it scrub per hour? Can the carbon be easily recovered? How many break/repair cycles can this material do without deforming or degrading?

Indeed. Sunlight alone can't pull a significant amount of water out of the atmosphere, and plants/bacteria need additional energy in the form of sugars to pull carbon out of CO2 in the air.

Where's all this energy coming from?

Re: Self-healing material can build itself from carbon in the air

#29
post #23

> The chloroplasts are not alive but catalyze the reaction of carbon dioxide to glucose. That reaction also consumes water. So, would you need to regularly mist the material with a spray bottle to keep the self-healing going?

I want to know where all the glucose comes from!

Re: Self-healing material can build itself from carbon in the air

#30
post #27

So, the self filling water bottles don't work because of the energy required to extract H2O out of the air is excessive (think how much electricity is required for your dehumidifier) ... Extracting carbon from the CO2 in the air is going to need a heap more, I would have thought. I'm not a physicist though, would be glad to be proven wrong. It does sound very much like a "solar freaking roadways" type effort though.

Plants extract carbon from CO2 all the time. This material is using photosynthesis so I would assume it works close to as well as it does in plants.
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