Fraunhofer researchers use XPS to analyze surface chemistry of bio‑based hybrid materials

Researchers at the Fraunhofer Institute for Applied Polymer Research IAP have employed X‑ray photoelectron spectroscopy (XPS) to probe the chemical states and interfacial interactions of bio‑based carbon materials and organic‑inorganic hybrids. By focusing on just a few atomic layers at material surfaces, the team demonstrated how subtle surface modifications can markedly affect the adsorption of waterborne pollutants and the light‑driven activity of photocatalysts. The XPS analyses revealed specific bonding configurations and elemental distributions that govern these functional properties, providing a detailed map of surface chemistry for the examined materials.

The findings offer a pathway for the rational design of next‑generation functional materials tailored to industrial needs, such as water purification systems and efficient solar‑activated catalysts. By linking surface‑level chemical insights to macroscopic performance, the Fraunhofer researchers aim to accelerate the development of environmentally responsive technologies that leverage renewable, bio‑derived components.