(AgCl)核*(Ag)壳纳米粒子的光化学制备及其光谱特性研究

摘要

用草酸钠作光还原剂，采用可见光或紫外光可制得蓝黑色的(AgCl)核*(Ag)壳纳米粒子，其最大吸收波长为425 nm；在470 nm处有最强共振散射峰.采用紫外-可见光光度法和共振散射光谱法研究了各因素对制备蓝黑色(AgCl)核*(Ag)壳纳米粒子的影响.%The blue-black (AgCl)core*(Ag)shell nanoparticle has been prepared by the photochemical method of visible light or ultraviolet light in the presence of oxalic acid reductant.Its maximum absorption wavelength is 425　nm.Its strongest resonance scattering peak is at 470　nm.The affecting factors to the preparation of the blue-black (AgCl)core*(Ag)shell nanoparticle have been investigated.