Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
An interesting new development from researchers at MIT may help people survive in the driest environments on Earth (or elsewhere?). The material can pull moisture out of the air; a kilogram of the material can capture several liters of water each day in 20% humidity air entirely passively - power required.
(Top to bottom, right, shows increase in water droplets)
A team at MIT developed the technology with Omar Yaghi’s laboratory at the University of California, Berkeley. The key component is a promising class of synthetic porous materials called metal-organic frameworks, composed of organic molecules stitched together with metal atoms, which Yaghi pioneered (see “A Better Way to Capture Carbon”). The size and chemical character of the material’s pores can be customized to capture particular types of molecules or allow them to flow through. The material also has a massive surface area, on the order of a football field per gram, enabling it to bond with a large quantity of particles.
The prototype bonds with water at night or in shade. But during the day, sunlight hitting the material adds enough energy to convert the water molecules into vapor. In turn, they slip out of the material’s pores and into an adjacent acrylic enclosure. A condenser at the bottom of the vessel collects the water droplets and funnels them into a chamber below, from which clean water can be collected.
Fans of Dune recall the chromoplastic dew collectors that passively pull water out of the air to keep little plants alive:
"Each bush, each weed you see out there in the erg," she said, "how do you suppose it lives when we leave it? Each is planted most tenderly in its own little pit. The pits are filled with smooth ovals of chromoplastic. Light turns them white. You can see them glistening in the dawn if you look down from a high place. White reflects. But when Old Father Sun departs, the chromoplastic reverts to transparency in the dark. It cools with extreme rapidity. The surface condenses moisture out of the air. That moisture trickles down to keep our plants alive."
"Dew collectors," he muttered, enchanted by the simple beauty of such a scheme.
Via Water harvesting from air with metal-organic frameworks powered by natural sunlight and technology review
Scroll down for more stories in the same category. (Story submitted 3/9/2018)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Osmiridium Sounds Like Science Fiction (But It's Not!)
I can't resist science-fictional elements. Especially when they're real.
'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.
Self-Healing Material Pulls Carbon Out Of The Air
'... could seal the punctures.' - Raymond Z. Gallun, 1951.
Shapeshifting Materials Transform By Light
'Its lines wavered, flowed, and then painfully reformed.'- Philip K. Dick, 1957.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Road Noise Charges Electric Cars With Peugeot Piezoelectric Billboard
''... major cities of Earth have free electrical power conveniently processed from their own noise.'
Unsinkable Metal Latest Gates Obsession
'A metal... light as cork.'
M-Blocks 2.0 Self-Assembling Robots
'Faster the cubes moved...'
NASA 'Broomstick' Recalls SciFi Ideas
'The appearance was enough like a giant witch's broom to justify the nickname.'
Orbital Display's Low Earth Orbit Advertisements
'A vast circle of scarlet stars came up into the greenish desert dusk.'
Neuromorphic Computing Hardare
'He had constructed an organ, a brain, of metal, entirely inorganic and lifeless...'
Vascularized Human Skin 3D Printed
Trillionaires Still Earth-Bound
'I shall never forget the sight... when the yellow gleam of the precious metal appeared under the star dust.'
Digit V2 Bipedal Robot From Agility Robotics
Oh, and now I suppose someone will develop the robotic porch pirate.
3D Printed Dubai Building Is World's Largest
'This thing will start at one end of ...a house and build it complete to the other end, following drawings only.'
Grow Plants On Moon Or Mars!
'In contrast to the airless desolation outside, the interior of this five-acre greenhouse was the one most desirable place to be.'
California Gets Shockwave Rider-Style Avoidance Zones
'It was cheaper to pay the refugees to go without up-to-the-minute equipment.'
Microbot Interstellar von Neumann Explorers
'Evidently they have never had a planet of their own...'
Hail SmartCan! Your Trash Bin Takes Itself Out
'...a waste can twenty feet away stirred into life.'
Finally! Microsoft Surface Neo And Surface Duo Implement Excellent Courier Idea
'Runcible, whose pages were thicker and more densely packed with computational machinery...'
Tap Strap 2 Now With Air Mouse
'He waved his hand and the circuit switched abruptly.'
More SF in the News Stories
More Beyond Technovelgy science news stories