期刊
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
卷 18, 期 3, 页码 639-643出版社
UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS
DOI: 10.1590/1516-1439.009015
关键词
biogenic SiO2; rice husk; SnO2/SiO2 composite; Pechini method
资金
- FAPEAM [2985/2012]
- Laboratory of Advanced Optical Spectroscopy (LMEOA/IQ-UNICAMP/FAPESP Grant) [2009/54066-7]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [09/54066-7] Funding Source: FAPESP
In this study, biogenic SiO2 of high purity and high surface area obtained from rice husk was used for prepare a nanostructured SnO2/SiO2 composite. The predominantly amorphous silica was extracted in an acidic route and then the nanocomposite was done via sol-gel route using ethylene glycol and citric acid followed by heat treatment. SiO2 content of the rice husk was determined by X-ray fluorescence (XRF) and its specific surface area determined by nitrogen adsorption. The composite nanostructured SnO2/SiO2 was structurally characterized by the techniques of X-ray diffraction (XRD), Raman and Fourier transform infrared (FT-IR) spectroscopy. The morphological characteristics were revealed by scanning electron microscope (SEM).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据