Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash

A new class of nano-sized microporous titanosilicate ETS-10 has been prepared through hydrothermal synthesis route in the absence of ETS-4 and organic template agent. Local agriculture waste â€“ rice husk ash (RHA) has been used as the silica source and commercial titanium oxide namely P25 as titani...

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Main Author:	Jei, Ching Yih
Format:	Thesis
Language:	English
Published:	2008
Subjects:	QD Chemistry
Online Access:	http://eprints.utm.my/id/eprint/9698/1/JeiChingYihMFSA2008.pdf
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spelling	my-utm-ep.96982018-08-27T03:24:07Z Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash 2008-01 Jei, Ching Yih QD Chemistry A new class of nano-sized microporous titanosilicate ETS-10 has been prepared through hydrothermal synthesis route in the absence of ETS-4 and organic template agent. Local agriculture waste â€“ rice husk ash (RHA) has been used as the silica source and commercial titanium oxide namely P25 as titanium source. For comparison, the colloidal silica source, LUDOX-30 was also used as a silica source to synthesize the ETS-10. The influence of some synthesis parameters such as synthesis time and heating temperature on the crystallization of ETS-10 and the gel oxides composition have also been investigated. The physico-chemical characterization of these synthesized materials have been carried out by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), UV-Vis spectroscopy (UV-VIS), Field Emission Scanning Electron Microscopy (FESEM), Solid State Nuclear Magnetic Resonance (NMR), nitrogen adsorption-desorption analysis and Raman spectroscopy. The best ETS-10 sample was successfully obtained under heating at 220Â°C for 52 hours using the following molar ratio TiO2 : 3.75SiO2 : 1.5NaOH : 0.54KF : 21.25H2O. The ability of the synthesized ETS-10 as adsorbents for heavy metal ion such as Pb2+, Cd2+ and Cu2+ was investigated. The study of equilibrium and adsorption isotherm at 298 K was conducted using batch mode. The uptake rates for these heavy metal ions were extremely fast and fitted well with the pseudo-second order model and Langmuir equation with an affinity order of Pb2+ > Cd2+ > Cu2+, with values of 1.86, 1.51 and 1.45 mmol/g respectively, which are the highest adsorptive capacities of the heavy metal ions on zeolite materials reported so far. This indicates that ETS-10 is a very promising adsorbent for divalent heavy metals. 2008-01 Thesis http://eprints.utm.my/id/eprint/9698/ http://eprints.utm.my/id/eprint/9698/1/JeiChingYihMFSA2008.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1253 masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Jei, Ching Yih Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
description	A new class of nano-sized microporous titanosilicate ETS-10 has been prepared through hydrothermal synthesis route in the absence of ETS-4 and organic template agent. Local agriculture waste â€“ rice husk ash (RHA) has been used as the silica source and commercial titanium oxide namely P25 as titanium source. For comparison, the colloidal silica source, LUDOX-30 was also used as a silica source to synthesize the ETS-10. The influence of some synthesis parameters such as synthesis time and heating temperature on the crystallization of ETS-10 and the gel oxides composition have also been investigated. The physico-chemical characterization of these synthesized materials have been carried out by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), UV-Vis spectroscopy (UV-VIS), Field Emission Scanning Electron Microscopy (FESEM), Solid State Nuclear Magnetic Resonance (NMR), nitrogen adsorption-desorption analysis and Raman spectroscopy. The best ETS-10 sample was successfully obtained under heating at 220Â°C for 52 hours using the following molar ratio TiO2 : 3.75SiO2 : 1.5NaOH : 0.54KF : 21.25H2O. The ability of the synthesized ETS-10 as adsorbents for heavy metal ion such as Pb2+, Cd2+ and Cu2+ was investigated. The study of equilibrium and adsorption isotherm at 298 K was conducted using batch mode. The uptake rates for these heavy metal ions were extremely fast and fitted well with the pseudo-second order model and Langmuir equation with an affinity order of Pb2+ > Cd2+ > Cu2+, with values of 1.86, 1.51 and 1.45 mmol/g respectively, which are the highest adsorptive capacities of the heavy metal ions on zeolite materials reported so far. This indicates that ETS-10 is a very promising adsorbent for divalent heavy metals.
format	Thesis
qualification_level	Master's degree
author	Jei, Ching Yih
author_facet	Jei, Ching Yih
author_sort	Jei, Ching Yih
title	Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
title_short	Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
title_full	Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
title_fullStr	Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
title_full_unstemmed	Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash
title_sort	synthesis, characterization and sorption properties of microporous titanosilicate ets-10 from rice husk ash
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2008
url	http://eprints.utm.my/id/eprint/9698/1/JeiChingYihMFSA2008.pdf
_version_	1747814778884063232

Synthesis, characterization and sorption properties of microporous titanosilicate ETS-10 from rice husk ash

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