Preparation and Characterization of Silicate Glasses from Waste Agriculture Materials (Rice Husk and Peanut Peel)

• Published in: SILICON 2020-06, Vol.12 (6), p.1425-1432
• Main Author: Ratep, A.
• Format: Article
• Language: English
• Subjects: Absorptivity; Agricultural wastes; Chemical composition; Chemistry; Chemistry and Materials Science; Cristobalite; Differential thermal analysis; Environmental Chemistry; Fourier transforms; Glass; Heat treatment; Infrared analysis; Infrared spectroscopy; Inorganic Chemistry; Lasers; Lithium oxides; Materials Science; Mathematical analysis; Optical Devices; Optics; Original Paper; Peanuts; Photonics; Polymer Sciences; Rice; Silicon dioxide; Spectrum analysis; Thermodynamic properties; Tridymite; Waste disposal; X-ray diffraction
• ISSN: 1876-990X; 1876-9918
• DOI: 10.1007/s12633-019-00241-2

The presence of large quantities of agricultural waste directed our attention to how to benefit from them. The main concern of this article deals with the extraction of silica from rice husk and Peanut Peel. The material burning in large quantities can produce an environmental problem. Consequently, there is a need to waste disposal. In this study, all waste materials are subject to humidity removal at 200 °C then heat-treated at 900 °C for 7 h. The obtained powders were examined and described by FT-IR and XRD analysis. The Powder obtained from rice husk and Peanut Peel sources found to be SiO 2 in Cristobalite and Tridymite phases. The crystal rice husk and Peanut Peel used as an alternative source of silica for the installation of glass samples. Glass samples prepared containing 40% substances produced, in addition to sodium and lithium oxide. The resulting glass studied and tested using a variety of analytical techniques, including x-ray diffraction (XRD), infrared spectroscopy for Fourier transform (FT-IR), differential thermal analyzes (DTA), UV / VIS / NIR spectroscopy. The thermal parameters from DTA data indicate the glass prepared from rice ash have more similarity of glass formed from chemical composition than the glass formed from the Peanut Peel. FTIR show that these glasses consist mainly of SiO4 vibration groups in addition to non-bridging oxygen units. From measurements and studies the visible UV, the optical band gap and intensity of absorption coefficient increase with SiO 2 yield from rice husk.