Abstract In the paper the new application of nanoceria (CeO2-x nanoparticles) for detection and quantification of hydrogen peroxide (HP) content in water solutions is shown. Sensing of hydrogen peroxide is… Click to show full abstract
Abstract In the paper the new application of nanoceria (CeO2-x nanoparticles) for detection and quantification of hydrogen peroxide (HP) content in water solutions is shown. Sensing of hydrogen peroxide is based on the reversible shift of Ce3+↔ Ce4+ balance in ceria nanoparticles as a result of nanoceria-oxidant interaction. Intensity of 5 d→4f luminescence of Ce3+ ions being a measure of Ce3+/Ce4+ ratio in nanoceria depends linearly on the hydrogen peroxide concentration in water solutions and, so, can be used for reliable quantification of HP content. The nanoceria-based sensor is reversible and applicable for long-term monitoring of oxidant level in biological systems.
Journal Title: Optical Materials
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!