Nanoparticulate SnS as an efficient photocatalyst under visible-light irradiation

作者：Tang, Peisong^*; Chen, Haifeng; Cao, Feng; Pan, Guoxiang; Wang, Kunyan; Xu, Minghong; Tong, Yanhua

来源：Materials Letters, 2011, 65(3): 450-452.

DOI：10.1016/j.matlet.2010.10.055

• Semiconductor
• Nanocrystalline materials
• Visible-light
• Photocatalysis
• SnS

SnS nanoparticles were synthesized using cheap and less toxic SnCl(2)center dot 2H(2)O as the tin (II) precursor. The prepared nanoparticles were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-Vis diffuse reflectance spectra (DRS). XRD and TEM results indicate that the prepared product is SnS nanosphere and has a grain size of 5 nm in diameter. DRS show that SnS possesses the absorption profile across the whole visible-light region. Furthermore, SnS has a high photocatalytic activity for the decomposition of Rhodamine B under visible-light. It is proposed that both the strong visible-light absorption and the multiple exciton excitation contribute to the high visible-light photocatalytic activity.

• 出版日期2011-2-15
• 单位湖州师范学院