Cornell scientists have discovered a potentially transformative approach to manufacturing one of the world's most widely used chemicals—hydr
"Cornell scientists have discovered a potentially transformative approach to manufacturing one of the world's most widely used chemicals—hydrogen peroxide—using nothing more than sunlight, water and air. The research is published in the journal Nature Communications.
"Currently, hydrogen peroxide is made through the anthraquinone process, which relies on fossil fuels, produces chemical waste and requires transport of concentrated peroxide—all of which have safety and environmental concerns," (...)"
"According to Amin Zadehnazari, first author and a postdoctoral researcher in Abbaspourrad's lab, the new research introduces two engineered, light-responsive materials, dubbed ATP-COF-1 and ATP-COF-2, designed to absorb visible light, separate photogenerated charges and drive the conversion of water and oxygen into hydrogen peroxide.
"These materials work efficiently under visible light, are stable and reusable, and point toward a future where hydrogen peroxide could be made locally instead of in large chemical factories," Zadehnazari said."
""The challenge," Zadehnazari added, "is that while the existing anthraquinone process is toxic and not clean, it's cheap. We're now focusing on how to make this sustainable alternative affordable at scale."
Technically, the work builds on the design of covalent organic frameworks—crystalline, porous structures of organic molecules that can be tailored to absorb light and shuttle electrons. While previous photocatalysts have faced challenges with efficiency and stability, the new COFs demonstrate competitive performance for sunlight-driven hydrogen peroxide generation.
The implications are significant, Abbaspourrad said. Producing hydrogen peroxide onsite using sunlight could reduce dependence on large-scale logistics of transport and storage of the reactive chemical, a major safety concern. Smaller local generators might serve water treatment plants, hospitals or consumer applications without the same infrastructure or risks. It could open new markets for decentralized chemical manufacture, particularly in developing regions or in applications where smaller batches matter."
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