Photocatalytic behavior of ZnO and Pt-incorporated ZnO nanoparticles in phenol degradation
Nanostructured Pt–ZnO composite thick films were prepared using the composite nanoparticles synthesized through Triton X-100 polymer assisted thermolysis of zinc acetate. It has been observed that only a fraction of added Pt incorporates into the ZnO lattice and the rest segregates over the ZnO nanoparticle surface to form metallic nanoclusters. Morphology, crystallinity, and optical properties of the ZnO and Pt–ZnO nanostructures have been studied. Photocatalytic behavior of the samples for phenol degradation process has been studied in a high performance liquid chromatography system. It has been observed that though the phenol degradation rate is higher for pure ZnO nanostructures, Pt–ZnO nanostructures act as selective catalyst, producing only one intermediate product and dissociating it faster than ZnO.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (201 K)Download as PowerPoint slideResearch highlights▶ Pt-incorporated ZnO nanoparticles are prepared by Triton assisted thermolysis. ▶ Catalytic activity of the composite particles is studied for Pheno degradation. ▶ ZnO nanoparticles decorated with tiny Pt clusters work as efficient slective catalysts.
Journal: Applied Catalysis A: General - Volume 394, Issues 1–2, 28 February 2011, Pages 269–275