DOI码：10.1021/am200102y

所属单位：化学化工学院

教研室：无机教研室

发表刊物：ACS Applied Materials and Interfaces

关键字：tin sulfide； tin oxide； nanocomposites； in situ oxidation synthesis；photocatalysis；stability

摘要：SnS2/SnO2 nanocomposites with tunable SnO2 contents were prepared via in situ hydrothermal oxidation of SnS2 nanoparticles in 0.375–4.5 mass% H2O2 aqueous solutions at 180 °C for 0–12 h. The structure, composition and optical properties of the as-prepared SnS2/SnO2 nanocomposites were characterized by X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, Brunauer–Emmett–Teller (BET) surface area analysis, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and UV–vis diffuse reflectance spectra. Furthermore, their photocatalytic properties were tested for the degradation of methyl orange in water under visible light (λ > 420 nm) irradiation. It was found that the as-prepared SnS2/SnO2 nanocomposites with suitable SnO2 content not only demonstrated superior photocatalytic activity to both SnS2 nanoparticles and physically mixed SnS2/SnO2 composite nanoparticles, but also had remarkable photocatalytic stability. The tight attachment of SnO2 nanoparticles to SnS2 nanoparticles, which can facilitate interfacial electron transfer and reduce the self-agglomeration of two components, was considered to play an important role in achieving the high photocatalytic performances exhibited by the as-prepared SnS2/SnO2 nanocomposites.

合写作者：杜珍妮,李困为,张明,Dion

第一作者：张永才

论文类型：应用基础研究

论文编号：https://doi.org/10.1021/am200102y

学科门类：理学

一级学科：化学

文献类型：Research Atricle

卷号：3

期号：5

页面范围：1528-1537

ISSN号：19448244

是否译文：否

发表时间：2011-04-08

收录刊物：SCI

发布期刊链接：https://doi.org/10.1021/am200102y