Plasmonic photocatalysis caused by surface plasmon resonance (SPR) has emerged out as an impressive way for efficient light absorption and solar light conversion. A series of catalysts consisting of plasmonic Ag nanoparticles (NPs) deposited on CeO₂ coated mesoporous silica, SBA-15, prepared by MW-assisted alcohol reduction method were tested for the chemoselective hydrogenation of p-nitrostyrene. A remarkable increase in the reaction rate occurred when the catalyst support contained specific composition (2 wt %) of CeO₂ on silica. The structure and properties of the prepared catalysts were studied by using a range of physicochemical characterization tools; UV–vis, transmission electron microscopy (TEM), X-ray absorption fine structure (XAFS), X-ray photoelectron spectroscopy (XPS) and N₂-physisorption measurement studies. The challenging reduction of p-nitrostyrene containing an easily reducible group was examined in an ethanol suspension under mild reaction conditions using ammonia borane (AB) as an in-situ source of hydrogen. The highest conversion (100%) and 90% product yield in the hydrogenation of p-nitrostyrene to p-aminostyrene was achieved on the catalyst with 1.0 wt % loading of Ag NPs and 2 wt % of CeO₂ supported on silica.

由表面等离振子共振（SPR）引起的等离子光催化已经成为有效吸收光和转换太阳光的令人印象深刻的方法。测试了一系列由MW辅助醇还原法制得的，沉积在CeO ₂包覆的介孔二氧化硅SBA-15上的等离激元Ag纳米颗粒（NPs）组成的催化剂对对硝基苯乙烯的化学选择性加氢作用。当催化剂载体包含特定组成（2 wt％）的CeO ₂时，反应速率显着增加在二氧化硅上。通过使用一系列的物理化学表征工具研究了制备的催化剂的结构和性能。紫外可见光，透射电子显微镜（TEM），X射线吸收精细结构（XAFS），X射线光电子能谱（XPS）和N _2-物理吸收测量研究。在温和的反应条件下，使用氨硼烷（AB）作为原位氢源，在乙醇悬浮液中检查了具有易还原基团的对硝基苯乙烯的富挑战性还原。在负载有1.0 wt％的Ag NP和2 wt％的CeO ₂的催化剂上，实现了对硝基苯乙烯加氢成对氨基苯乙烯的最高转化率（100％）和90％的产品产率。 支撑在二氧化硅上。