可降解生物塑料聚丁二酸丁二醇酯(PBS)
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【科技日报】捕碳于海 变废为宝
Ke Ji Ri Bao· 2025-11-12 06:28
Core Insights - The article discusses the development of an "artificial ocean carbon cycling system" that captures CO2 from seawater and converts it into valuable chemical products, addressing both ocean acidification and carbon neutrality goals [1][4]. Group 1: Carbon Capture Technology - The research focuses on efficient carbon capture from seawater, overcoming challenges such as membrane swelling and electrode contamination that limit traditional methods to less than 10 hours of continuous operation [2]. - A new electrochemical carbon capture device was designed, achieving over 500 hours of stable operation with a CO2 capture efficiency exceeding 70%, and a cost of approximately $229.9 per ton of CO2 captured, which is significantly lower than current industry standards [4]. Group 2: Bioconversion of Captured CO2 - The research team developed a "microbial cell factory" that utilizes formic acid, derived from captured CO2, to produce biodegradable plastic monomers such as succinic acid and lactic acid [5]. - Stable carbon isotope labeling experiments confirmed that the carbon atoms in succinic acid originated from the initially captured CO2, demonstrating the system's potential for sustainable material production [5]. Group 3: Future Industrial Applications - The research team aims to create an integrated "green factory" that continuously captures CO2 from seawater and converts it into green plastic materials, showcasing the industrial potential of the system [6]. - The system could produce a diverse range of products, including biodegradable straws, packaging materials, and environmentally friendly detergents, contributing to the reduction of ocean acidification and promoting a circular economy [6].