Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/244449
Type: Artigo de periódico
Title: Rice Husk Reuse in the Preparation of SnO2/SiO2Nanocomposite
Author: Carlos Sérgio
Ferreira
Pãmyla Layene
Santos
Juliano Alves
Bonacin
Raimundo Ribeiro
Passos
Leandro Aparecido
Pocrifka
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).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).
Subject: Biogenic Sio2
Rice Husk
Sno2/sio2 Composite
Pechini Method
Citation: Rice Husk Reuse In The Preparation Of Sno2/sio2nanocomposite, v. 18, n.3, p. 639-643. 2015.
Rights: aberto
Address: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000300639&lang=pt
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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