| Texto completo | |
| Autor(es): |
Carlos Sérgio Ferreira
[1]
;
Pãmyla Layene Santos
[2]
;
Juliano Alves Bonacin
[3]
;
Raimundo Ribeiro Passos
[4]
;
Leandro Aparecido Pocrifka
[5]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [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
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 18, n. 3, p. 639-643, 2015-06-00. |
| Resumo | |
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) | |
| Processo FAPESP: | 09/54066-7 - Laboratório Multiusuário de Espectroscopia Óptica Avançada |
| Beneficiário: | Yoshitaka Gushikem |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |