Plasmonic photocatalytic system using silver chloride/silver nanostructures under visible light

• Published in: Journal of colloid and interface science 2010-01, Vol.341 (1), p.83-87
• Main Authors: Choi, Moonjung, Shin, Kyoung-Hwan, Jang, Jyongsik
• Format: Article
• Language: English
• Subjects: Chemistry; Colloidal state and disperse state; Dye decomposition; Exact sciences and technology; General and physical chemistry; Nanomaterials; Nanoparticles; Nanostructure; Photocatalysis; Photocatalyst; Photochemistry; Physical and chemical studies. Granulometry. Electrokinetic phenomena; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Plasmonics; Silver; Silver chlorides; Silver halide; Surface physical chemistry; Titanium dioxide; Visible light
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1016/j.jcis.2009.09.037

Plasmonic photocatalytic nanostructured system was investigated on silver chloride/silver nanoparticles under visible light. Silver chloride/silver nanoparticles were readily prepared using dispersing agent and light irradiation. Plasmonic photocatalytic nanostructured system was investigated on silver chloride/silver nanoparticles under visible light. Silver chloride/silver nanoparticles were readily prepared using dispersing agent and light irradiation. The d-spacing analysis, high resolution-transmission electron microscopy, X-ray diffraction analysis and diffuse-reflectance spectroscopy demonstrated that silver nanoparticles were introduced on the surface of silver chloride nanoparticles and then silver chloride/silver nanostructured photocatalytic materials were successfully synthesized. The as-synthesized plasmonic photocatalysts exhibited the enhanced photocatalytic performance over nitrogen-doped titania nanomaterials. The improved catalytic activity was originated from the enhanced adsorption for visible light, electron–hole separation, and the formation of chloride atoms in silver chloride/silver nanostructured materials.