Customizing Cerium Oxide Particle Synthesis with Hybrid Polyion Complex Templates for Enhanced Oxidation Performance in Photo-Fenton Processes.
Liming PengFlorence Benoît-MarquiéJean-Daniel MartyPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2024)
Hybrid poly-ion complexes were synthesized through the complexation of a double hydrophilic copolymer with Ce(III) ions. These colloids act as reservoirs for cerium ions, enabling the synthesis of cerium-based Prussian blue nanoparticles with a cubic structure, a narrow size distribution around 100 nm, and good colloidal stability in water. Upon high-temperature calcination, these nanoparticles are transformed into a cerium/iron-based metal oxide catalyst (CeO 2 /Fe 2 O 3 ). The resultant composite catalyst demonstrates superior performance in the photo-Fenton oxidation of methylene blue pollutants, achieving a conversion efficiency that rivals other metal-based oxides and cerium-based catalysts.
Keyphrases
- oxide nanoparticles
- hydrogen peroxide
- highly efficient
- high temperature
- visible light
- room temperature
- quantum dots
- wastewater treatment
- electron transfer
- ionic liquid
- metal organic framework
- reduced graphene oxide
- nitric oxide
- carbon dioxide
- heavy metals
- risk assessment
- walled carbon nanotubes
- drug release
- gold nanoparticles
- iron deficiency