Low concentration CO2
Using energy from light equivalent to sunlight the artificial photosynthesis system uses enzymes and a rhodium catalyst to produce a biodegradable plastic precursor. Now for the first time, the process works using low concentrations of CO2, similar to exhaust gas, and waste acetone as raw materials.
Credit: Yutaka Amao, OMU
can be reused in biodegradable plastic precursor using artificial photosynthesis.
Poly-3-hydroxybutyrate—a biodegradable plastic—is a strong water-resistant polyester often used in packaging materials, made from 3-hydroxybutyrate as a precursor. In previous studies, a research team led by Professor Yutaka Amao from the Research Center for Artificial Photosynthesis at Osaka Metropolitan University, found that 3-hydroxybutyrate can be synthesized from CO2 and acetone with high efficiency, but only demonstrated this at higher concentrations of CO2 or sodium bicarbonate.
This new study aimed to reuse waste acetone from permanent marker ink and low concentrations of CO2—equivalent to exhaust gas from power plants, chemical plants, or steel factories. Acetone is a relatively inexpensive and reasonably harmless chemical used in many different laboratory settings, either for reactions or as a cleaning agent, which produces waste acetone. The acetone and CO2 acted as raw materials to synthesize 3-hydroxybutyrate using artificial photosynthesis, powered by light equivalent to sunlight.
“We focused our attention on the importance of using CO2 created by exhaust gas from thermal power plants and other sources to demonstrate the practical application of artificial photosynthesis,” explained Professor Amao.
After 24 hours, more than 60% of acetone had been successfully converted to 3-hydroxybutyrate. Their findings were published in Green Chemistry.
“In the future, we aim to develop artificial photosynthesis technology further, so that it can use acetone from liquid waste and as well as exhaust gas from the laboratory as raw materials,” stated Professor Amao.
About OMU
Osaka Metropolitan University is a new public university established by a merger between Osaka City University and Osaka Prefecture University in April 2022. For more science news, see https://www.omu.ac.jp/en/, and follow @OsakaMetUniv_en, or search #OMUScience.
Journal: Green Chemistry
DOI: 10.1039/D3GC00247K
Method of Research: Experimental study
Subject of Research: Not applicable
Article Title: Visible-light driven 3-hydroxybutyrate production from acetone and low concentrations of CO2 with the system of hybridized photocatalytic NADH regeneration and multi-biocatalysts
Article Publication Date: 1-Mar-2023
Media Contact
Akane Kunida
Osaka Metropolitan University
koho-ipro@ml.omu.ac.jp
Original Source
All latest news from the category: Life Sciences and Chemistry
Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.
Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.
Newest articles
A ‘language’ for ML models to predict nanopore properties
A large number of 2D materials like graphene can have nanopores – small holes formed by missing atoms through which foreign substances can pass. The properties of these nanopores dictate many…
Clinically validated, wearable ultrasound patch
… for continuous blood pressure monitoring. A team of researchers at the University of California San Diego has developed a new and improved wearable ultrasound patch for continuous and noninvasive…
A new puzzle piece for string theory research
Dr. Ksenia Fedosova from the Cluster of Excellence Mathematics Münster, along with an international research team, has proven a conjecture in string theory that physicists had proposed regarding certain equations….