Rice Husk Reuse in the Preparation of SnO2/SiO2 Nanocomposite

Autor(es)

Ferreira, Carlos Sergio ^[1] ; Santos, Pamyla Layene ^[2] ; Bonacin, Juliano Alves ^[2] ; Passos, Raimundo Ribeiro ^[1] ; Pocrifka, Leandro Aparecido ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Amazonas UFAM, Dept Quim, GEMATA LEEN, BR-69077000 Manaus, Amazonas - Brazil

^[2] Univ Estadual Campinas UNICAMP, Inst Quim, Mol Nanotechnol Lab LNANOMOL, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 18, n. 3, p. 639-643, MAY-JUN 2015.
• Citações Web of Science: 22

Resumo

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). (AU)

• Processo FAPESP: 09/54066-7 - Laboratório Multiusuário de Espectroscopia Óptica Avançada
• Beneficiário: Yoshitaka Gushikem
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários