Turning plastic waste into valuable resources: A new photocatalytic approach
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Updates every hour. Last Updated: 8-May-2025 03:10 ET (8-May-2025 07:10 GMT/UTC)
In a recent development, a team of scientists from the Korea Institute of Science and Technology (KIST) and other institutions has come up with an innovative way to deal with plastic waste. Their study develops a photocatalytic method to degrade plastic waste, depositing polystyrene (PS) onto a durable tungsten oxide (WO3) photoanode. Under light, PS undergoes oxidation, producing carbon dioxide at the anode and hydrogen gas at the cathode, offering an eco-friendly, cost-effective approach for waste treatment and fuel production.
In a new study published in Engineering, researchers have developed an analytical framework integrating ecological security assessment, prediction, and zoning management. Using the Daqing River Basin as a case study, they found its ecological security improved from 2000~2020, but with spatial differences. The framework offers valuable insights for similar regions and sets a basis for further ecological security research.
Scientists from Southeast University and Guangzhou University have developed a new design paradigm for reconfigurable intelligent surfaces (RISs). Published in Engineering, this approach addresses challenges in traditional RIS design, such as high data costs and inefficient pattern design. It combines a novel topological representation method with a separate design architecture, offering a more efficient way to design RISs for applications in wireless communication and sensing.
The latest issues of two American Psychiatric Association journals, The American Journal of Psychiatry and Psychiatric Services, are now available online.
Nearly 17 million children and adolescents in the United States are estimated to live with a parent who has a substance use disorder, according to a study led by Texas State University, University of Michigan and Wayne State University.