Berkeley Lab Researchers Perform Solar-powered Green Chemistry with Captured CO2
A potentially game-changing breakthrough in artificial photosynthesis has been achieved with the development of a system that can capture carbon dioxide emissions before they are vented into the atmosphere and then, powered by solar energy, convert that carbon dioxide into valuable chemical products, including biodegradable plastics, pharmaceutical drugs and even liquid fuels.
Scientists with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have created a hybrid system of semiconducting nanowires and bacteria that mimics the natural photosynthetic process by which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water. However, this new artificial photosynthetic system synthesizes the combination of carbon dioxide and water into acetate, the most common building block today for biosynthesis.
“We believe our system is a revolutionary leap forward in the field of artificial photosynthesis,” says Peidong Yang, a chemist with Berkeley Lab’s Materials Sciences Division and one of the leaders of this study. “Our system has the potential to fundamentally change the chemical and oil industry in that we can produce chemicals and fuels in a totally renewable way, rather than extracting them from deep below the ground.”
Yang, who also holds appointments with UC Berkeley and the Kavli Energy NanoSciences Institute (Kavli-ENSI) at Berkeley, is one of three corresponding authors of a paper describing this research in the journal Nano Letters. The paper is titled “Nanowire-bacteria hybrids for unassisted solar carbon dioxide fixation to value-added chemicals.” The other corresponding authors and leaders of this research are chemists Christopher Chang and Michelle Chang. Both also hold joint appointments with Berkeley Lab and UC Berkeley. In addition, Chris Chang is a Howard Hughes Medical Institute (HHMI) investigator. (See below for a full list of the paper’s authors.)
The more carbon dioxide that is released into the atmosphere the warmer the atmosphere becomes. Atmospheric carbon dioxide is now at its highest level in at least three million years, primarily as a result of the burning of fossil fuels. Yet fossil fuels, especially coal, will remain a significant source of energy to meet human needs for the foreseeable future. Technologies for sequestering carbon before it escapes into the atmosphere are being pursued but all require the captured carbon to be stored, a requirement that comes with its own environmental challenges.
The artificial photosynthetic technique developed by the Berkeley researchers solves the storage problem by putting the captured carbon dioxide to good use.
“In natural photosynthesis, leaves harvest solar energy and carbon dioxide is reduced and combined with water for the synthesis of molecular products that form biomass,” says Chris Chang, an expert in catalysts for carbon-neutral energy conversions. “In our system, nanowires harvest solar energy and deliver electrons to bacteria, where carbon dioxide is reduced and combined with water for the synthesis of a variety of targeted, value-added chemical products.”
By combining biocompatible light-capturing nanowire arrays with select bacterial populations, the new artificial photosynthesis system offers a win/win situation for the environment: solar-powered green chemistry using sequestered carbon dioxide.
The Latest on: Artificial Photosynthesis
[google_news title=”” keyword=”Artificial Photosynthesis” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Artificial Photosynthesis
- New Catalyst Can Photosynthesise Hydrogen Peroxide Using Just Water and Airon February 29, 2024 at 4:00 pm
Subscribe for FREE A research team led by Professor Donglin JIANG from the Department of Chemistry, NUS has developed a new type of photocatalyst for the efficient artificial photosynthesis of H2O2 ...
- Scientists develop liquid metal-embraced photoactive films for artificial photosynthesison February 28, 2024 at 5:40 am
Solar-driven photocatalytic or photoelectrochemical water splitting holds great promise for direct solar-to-hydrogen energy conversion, especially in the context of the carbon-neutral initiative, ...
- Is Artificial Photosynthesis the Next Source of Renewable Energy?on February 19, 2024 at 9:00 am
Is artificial photosynthesis more efficient than solar power? Discover the innovative research that could be a game changer in sustainable energy.
- Advanced artificial photosynthesis catalyst uses CO2 more efficiently to create biodegradable plasticson February 18, 2024 at 7:20 pm
A research team that had previously succeeded in synthesizing fumaric acid using bicarbonate and pyruvic acid, and carbon dioxide collected directly from the gas phase as one of the raw materials, has ...
- Artificial photosynthesis uses CO2 to create biodegradable plasticson February 16, 2024 at 8:42 am
Using a visible light-driven redox system, biomass-derived compounds and gaseous carbon dioxide (CO 2 ), the technique produces chemicals which are converted to fumaric acid – a component of ...
- Advanced artificial photosynthesis catalyst uses CO₂ more efficiently to create biodegradable plasticson February 15, 2024 at 4:00 pm
In a previous study, a research team led by Professor Yutaka Amao of the Research Center for Artificial Photosynthesis at Osaka Metropolitan University demonstrated the synthesis of fumaric acid ...
- Artificial Photosynthesis—Making Fuels Directly from Sunlighton May 13, 2022 at 5:40 pm
Nathan Lewis will present about the discovery and development of materials and a system architecture for the direct production of fuels from sunlight. The membrane-embedded microwire array approach is ...
- A new leaf unfolds in artificial photosynthesison February 28, 2022 at 2:15 pm
In 2021, researchers from Toyota Central R&D Labs developed a large, cost-effective artificial photosynthesis system that produces industrial formate at a solar-to-chemical conversion efficiency ...
- Creating fuel from thin air with artificial leaveson October 11, 2020 at 5:00 pm
"I really believe that artificial photosynthesis will be one part of that energy portfolio over the next two decades." When plants photosynthesise, they take up water and carbon dioxide ...
- Scientists Just Coaxed Bacteria into Performing Artificial Photosynthesison January 7, 2016 at 9:59 am
What’s more impressive is that they even induced it to also synthesize semiconductor nanoparticles in a hybrid artificial photosynthesis system for converting sunlight into valuable chemical ...
via Bing News