Russian Scientists Create Reusable Polymer for Efficient Oil Absorption from Water
Russian chemists from St. Petersburg State University have developed a reusable polymer film that effectively absorbs oil from water. Made from petroleum products, this strong, hydrophobic material forms a sponge-like structure, capable of cleaning oil spills even in harsh conditions. It can be wrung out and reused multiple times with minimal loss in efficiency, and the absorbed oil can also be recycled. This invention offers a promising tool for combating environmental disasters, as scientists explore its practical applications.
Chemists at St. Petersburg State University's Advanced Engineering School have unveiled an innovative polymer film designed to absorb oil from water efficiently. This robust, reusable material is derived from petroleum products and features a unique sponge-like structure composed of countless fibres, each less than 1 micron thick. When deployed on oil spills, the hydrophobic film, which doesn't sink, actively absorbs contaminants, gradually darkening as it works. A key advantage is its reusability; after cleaning, the polymer can be wrung out, washed, and deployed again, maintaining 80-85% of its sorption capacity even after five cycles. The extracted oil can also be repurposed.Testing demonstrated the polymer's effectiveness in challenging conditions, including cold saltwater (+4℃) with simulated waves and liquid rotation, confirming its ability to float reliably. Its lightweight yet strong and elastic properties further enhance its practicality. Scientists envision this polymer as a vital tool in mitigating environmental disasters, with ongoing research into its various applications. The article also contextualizes this development within broader environmental efforts across BRICS nations. China has introduced a comprehensive water purification system focused on self-purification, while India is addressing chemical and microplastic pollution in the Yamuna River with proposed advanced monitoring and treatment. Brazil, specifically Sao Paulo, has successfully collected and repurposed used vegetable oil, preventing significant water pollution and carbon emissions. This collective focus underscores the global commitment to tackling water-related environmental challenges.
