Synthesis of photocatalyst materials utilizing localized surface plasmon resonance of metal nanoparticles

许多努力致力于合成响应于可见光的光催化剂。本研究探索了金（Au）纳米粒子表面等离子体共振（SPR）作为可见光照射下等离子体光催化剂的新应用。在可见光照射下，等离子体光催化剂在有机酸矿化、选择性氧化、H2生成和有机物还原等方面表现出独特的光吸收特性和光催化性能。以铂、银和钯为助催化剂的功能化SPR光催化剂分别对H2的生成、硝基苯的还原和氯苯的脱氯都有较好的催化效果。本研究的结果可广泛应用于设计和开发具有更高活性和选择性的新型等离子体光催化剂。

Many efforts have been devoted to synthesis of photocatalysts that respond to visible light. This study explored new application of surface plasmon resonance (SPR) of gold (Au) nanoparticles as plasmonic photocatalysts working under irradiation of visible light. The plasmonic photocatalysts exhibited unique photoabsorption properties and photocatalytic performances in the minerarization of organic acid, selective oxidation, H2 formation, and reduction of organic compounds under irradiation of visible light. The functionalized SPR photocatalysts with platinum, silver and palladium co-catalysts worked effectively in H2 formation, reduction of nitrobenzene and dechlorination of chlorobenzene, respectively. The results introduced in this study can be widely applied for design and development of new plasmonic photocatalysts exhibiting further excellent activities and selectivities.