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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Rice Husk Reuse in the Preparation of SnO2/SiO2Nanocomposite

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Author(s):
Carlos Sérgio Ferreira [1] ; Pãmyla Layene Santos [2] ; Juliano Alves Bonacin [3] ; Raimundo Ribeiro Passos [4] ; Leandro Aparecido Pocrifka [5]
Total Authors: 5
Affiliation:
[1] Universidade Federal do Amazonas. Departamento de Química - Brasil
[2] Universidade Estadual de Campinas. Instituto de Química. Molecular Nanotechnology Laboratory - Brasil
[3] Universidade Estadual de Campinas. Instituto de Química. Molecular Nanotechnology Laboratory - Brasil
[4] Universidade Federal do Amazonas. Departamento de Química - Brasil
[5] Universidade Federal do Amazonas. Departamento de Química - Brasil
Total Affiliations: 5
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 18, n. 3, p. 639-643, 2015-06-00.
Abstract

In this study, biogenic SiO2 of high purity and high surface area obtained from rice husk was used for prepare a nanostructured SnO2/SiO2composite. 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). (AU)

FAPESP's process: 09/54066-7 - Multi-User Laboratory for Advanced Optical Spectroscopy
Grantee:Yoshitaka Gushikem
Support Opportunities: Multi-user Equipment Program