纳米复合材料
剥脱关节
煅烧
介孔材料
光催化
热重分析
材料科学
X射线光电子能谱
化学工程
扫描电子显微镜
比表面积
石墨烯
复合材料
纳米技术
化学
有机化学
催化作用
工程类
作者
Qinqin Wang,Bi‐Zhou Lin,Bai‐Huan Xu,Xiaoli Li,Zhijian Chen,Xue-Tao Pian
标识
DOI:10.1016/j.micromeso.2009.11.033
摘要
SnO2–hexaniobate layered nanocomposite was prepared via an exfoliation–restacking route and characterized by powder X-ray diffraction, scanning electron microscope, thermogravimetric analysis, IR, UV–vis, X-ray photoelectron spectroscopy, specific surface area and porosity measurements. It was shown that the host layer structure remains unchanged after the exfoliation and restacking processes, and that the nanocomposite has an interlayer expansion of about 2.8 nm even after calcination at 250 °C for 2 h. The nanocomposite is mesoporous with a high specific surface area (more than 120 m2/g). It was revealed the nanocomposite demonstrates a high photocatalytic activity in the degradation of acid red G under UV-light irradiation, which can be ascribed to its high surface area, mesoporosity and the synergistic effect of the two components.
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