Research Center for Eco Multi-Functional Nano Materials, Sun Moon University, Asan, South Korea.
J Hazard Mater. 2013 Dec 15;263 Pt 1:45-51. doi: 10.1016/j.jhazmat.2013.03.065. Epub 2013 Apr 6.
Ag°-PbMoO4 photocatalysts were synthesized by facile sonochemical method with different mol.% of Ag nanoparticles dispersed on the surface of PbMoO4. The synthesized powders were characterized by X-ray Diffraction (XRD) Spectroscopy, X-Ray Photoelectron Spectroscopy (XPS), Transmission Electron Microscopy (TEM), and Diffuse Reflectance Spectroscopy (UV-vis DRS) to investigate the crystal structure, morphology, chemical composition, and optical properties of the photocatalyst. Photocatalytic activities of the Ag°-PbMoO4 samples were evaluated by the degradation of Indigo Carmine (IC) dye under simulated solar light irradiation. It has been observed that the sample containing 0.3 mol.% of Ag showed the best photocatalytic activity as compared to other samples. The results suggest that the dispersion of Ag nanoparticles on the surface of PbMoO4 significantly enhances the photocatalytic activity of PbMoO4. Increase in photocatalytic activity of Ag°-PbMoO4 photocatalyst has been explained on the basis of surface plasmon resonance (SPR) effect caused by the silver nanoparticles present in the photocatalyst.
Ag°-PbMoO4 光催化剂通过简便的超声化学法合成，在 PbMoO4 表面分散有不同摩尔%的 Ag 纳米粒子。所合成的粉末通过 X 射线衍射（XRD）光谱、X 射线光电子能谱（XPS）、透射电子显微镜（TEM）和漫反射光谱（UV-vis DRS）进行了表征，以研究光催化剂的晶体结构、形貌、化学成分和光学性质。通过模拟太阳光照射下靛蓝胭脂红（IC）染料的降解来评估 Ag°-PbMoO4 样品的光催化活性。结果表明，与其他样品相比，含有 0.3 mol%Ag 的样品表现出最佳的光催化活性。结果表明，Ag 纳米粒子在 PbMoO4 表面的分散显著增强了 PbMoO4 的光催化活性。Ag°-PbMoO4 光催化剂光催化活性的提高是基于光催化剂中存在的银纳米粒子引起的表面等离子体共振（SPR）效应来解释的。
