Carbon Neutrality: Use Sunlight To Produce Biodegradable Plastics Through Artificial Photosynthesis
In recent years, due to the existence of carbon dioxide and other greenhouse gases, the environmental problems caused by global warming have become more obvious. In natural photosynthesis, carbon dioxide is not directly reduced, but combined with organic compounds and converted into glucose or starch. Imitating this, artificial photosynthesis can reduce carbon dioxide by combining carbon dioxide into organic compounds. As a raw material, it can be transformed into durable forms such as plastics.
Using sunlight to provide power for the photooxidation system, pyruvate and CO ? 2 are converted to fumaric acid by malate dehydrogenase and fumarase
The research team led by Professor Yutaka Amao of the Artificial Photosynthesis Research Center and Mika Takeuchi, a graduate student of the Graduate School of Osaka Municipal University, has successfully synthesized fumaric acid from carbon dioxide, which is a plastic raw material and is also the first material generated by sunlight. Their research results were published in Sustainable Energy and Fuel.
Fumaric acid is usually synthesized from petroleum and used as raw material for manufacturing biodegradable plastics (such as polysuccinic acid), but this discovery shows that fumaric acid can be synthesized from carbon dioxide and biomass derived compounds using renewable solar energy.
"In order to realize the practical application of artificial photosynthesis, this research has successfully used visible light - renewable energy - as the power source," Professor Amao explained. "In the future, our goal is to collect gaseous carbon dioxide and directly synthesize fumaric acid through artificial photosynthesis.".
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