Fabrication and spectroscopic properties of tellurite glass containing rice husk

One of the main components that play an important role in the building design is glass windows. The glass must possess good heat reflection properties to reduce heat enters the building. The aim of this study is to fabricate glass with incorporation of rice husk (RH) as additive materials. This meth...

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Main Author:	Siti Nur Hajrah Piara
Format:	Thesis
Language:	English English
Published:	2020
Subjects:	TP785-869 Clay industries Ceramics Glass
Online Access:	https://eprints.ums.edu.my/id/eprint/41683/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/41683/2/FULLTEXT.pdf
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spelling	my-ums-ep.416832024-11-26T06:03:18Z Fabrication and spectroscopic properties of tellurite glass containing rice husk 2020 Siti Nur Hajrah Piara TP785-869 Clay industries. Ceramics. Glass One of the main components that play an important role in the building design is glass windows. The glass must possess good heat reflection properties to reduce heat enters the building. The aim of this study is to fabricate glass with incorporation of rice husk (RH) as additive materials. This method can be a fruitful solution to overcome the emerging issue by reflecting heat and lowering the temperature in the interior buildings by using eco-friendly materials to reduce waste. Tellurite glasses are used as host glass with the composition of 69.5Te0; - 20ZnO - 10Na0 0.5Er0% - 0.2 (X) RH, where X is the RH in the form of fibre and ash with distinctive sizes of 38 μm, 63 μm, 125 μm, 250 μm and 500 μm. Two series of glass have been prepared in which the first series of glass containing rice husk fibre (RHF) and the second series of glass containing rice husk ash (RHA). All glass samples are transparent in nature and exhibit yellowish-orange in colour. SEM image shows the porosity of glass surface. EDX spectra revealed the appearance of C, 0, Na, Zn, Te, Mg, Ca, Mn, Fe, Al, Si, P, and Er elements in glass samples. XRD spectra validate the amorphous nature of glass samples with appearance of broad hump in the range of 25° - 35° and the absence of sharp peak. Meanwhile, the FTIR spectra in the range of 400 to 4000 cm+ signify the contribution of Te-O bonds, anti-asymmetric stretching of O-Si-O, stretching vibration of C=C and the presence of CO; in glass. The variation in the direct optical energy bandgap (3.0977 - 3.2935 eV), indirect optical energy bandgap (2.7189 - 3.0688 eV) and Urbach energy (0.1313 - 0.2034 eV) in the glass samples is due to the contribution from RHF and RHA. The UV-VisNIR spectra revealed the variations in the transmittance, reflectance and absorbance spectra in the ultraviolet, visible and near infrared region due to the incorporation of RHF and RHA of distinctive sizes. Glass sample containing 63 m RHF shows the optimum properties due to highest reflectivity of VIS and NIR radiation in the range of 79.32% and 79.73%. 2020 Thesis https://eprints.ums.edu.my/id/eprint/41683/ https://eprints.ums.edu.my/id/eprint/41683/1/24%20PAGES.pdf text en public https://eprints.ums.edu.my/id/eprint/41683/2/FULLTEXT.pdf text en validuser masters Universiti Malaysia Sabah Fakulti Sains dan Sumber Alam
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	TP785-869 Clay industries Ceramics Glass
spellingShingle	TP785-869 Clay industries Ceramics Glass Siti Nur Hajrah Piara Fabrication and spectroscopic properties of tellurite glass containing rice husk
description	One of the main components that play an important role in the building design is glass windows. The glass must possess good heat reflection properties to reduce heat enters the building. The aim of this study is to fabricate glass with incorporation of rice husk (RH) as additive materials. This method can be a fruitful solution to overcome the emerging issue by reflecting heat and lowering the temperature in the interior buildings by using eco-friendly materials to reduce waste. Tellurite glasses are used as host glass with the composition of 69.5Te0; - 20ZnO - 10Na0 0.5Er0% - 0.2 (X) RH, where X is the RH in the form of fibre and ash with distinctive sizes of 38 μm, 63 μm, 125 μm, 250 μm and 500 μm. Two series of glass have been prepared in which the first series of glass containing rice husk fibre (RHF) and the second series of glass containing rice husk ash (RHA). All glass samples are transparent in nature and exhibit yellowish-orange in colour. SEM image shows the porosity of glass surface. EDX spectra revealed the appearance of C, 0, Na, Zn, Te, Mg, Ca, Mn, Fe, Al, Si, P, and Er elements in glass samples. XRD spectra validate the amorphous nature of glass samples with appearance of broad hump in the range of 25° - 35° and the absence of sharp peak. Meanwhile, the FTIR spectra in the range of 400 to 4000 cm+ signify the contribution of Te-O bonds, anti-asymmetric stretching of O-Si-O, stretching vibration of C=C and the presence of CO; in glass. The variation in the direct optical energy bandgap (3.0977 - 3.2935 eV), indirect optical energy bandgap (2.7189 - 3.0688 eV) and Urbach energy (0.1313 - 0.2034 eV) in the glass samples is due to the contribution from RHF and RHA. The UV-VisNIR spectra revealed the variations in the transmittance, reflectance and absorbance spectra in the ultraviolet, visible and near infrared region due to the incorporation of RHF and RHA of distinctive sizes. Glass sample containing 63 m RHF shows the optimum properties due to highest reflectivity of VIS and NIR radiation in the range of 79.32% and 79.73%.
format	Thesis
qualification_level	Master's degree
author	Siti Nur Hajrah Piara
author_facet	Siti Nur Hajrah Piara
author_sort	Siti Nur Hajrah Piara
title	Fabrication and spectroscopic properties of tellurite glass containing rice husk
title_short	Fabrication and spectroscopic properties of tellurite glass containing rice husk
title_full	Fabrication and spectroscopic properties of tellurite glass containing rice husk
title_fullStr	Fabrication and spectroscopic properties of tellurite glass containing rice husk
title_full_unstemmed	Fabrication and spectroscopic properties of tellurite glass containing rice husk
title_sort	fabrication and spectroscopic properties of tellurite glass containing rice husk
granting_institution	Universiti Malaysia Sabah
granting_department	Fakulti Sains dan Sumber Alam
publishDate	2020
url	https://eprints.ums.edu.my/id/eprint/41683/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/41683/2/FULLTEXT.pdf
_version_	1818611422306762752

Fabrication and spectroscopic properties of tellurite glass containing rice husk

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