Staff View: Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts

Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts

The work aims to evaluate the efficient microwave (MW) drying method of silica-doped tetragonal zirconia nanocatalysts (SZN-M) for intensification of the degradation of toxic chlorophenolic compounds. The catalyst dried under a conventional oven (SZN-O) was also conducted for comparison. The MW dryi...

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Main Authors:	Hassan, N. S., Jalil, A. A., Hussain, I., Fauzi, A. A., Azami, M. S., Saravanan, R., Hairon, N. H. H.
Format:	Article
Published:	Elsevier B.V. 2021
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/94242/ http://dx.doi.org/10.1016/j.cep.2021.108469
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id	my.utm.94242
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spelling	my.utm.942422022-03-31T14:43:21Z http://eprints.utm.my/id/eprint/94242/ Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts Hassan, N. S. Jalil, A. A. Hussain, I. Fauzi, A. A. Azami, M. S. Saravanan, R. Hairon, N. H. H. TP Chemical technology The work aims to evaluate the efficient microwave (MW) drying method of silica-doped tetragonal zirconia nanocatalysts (SZN-M) for intensification of the degradation of toxic chlorophenolic compounds. The catalyst dried under a conventional oven (SZN-O) was also conducted for comparison. The MW drying time was reduced six times and three times less energy was used than the conventional oven drying. The catalysts were characterized by Fourier-transform infrared, X-ray diffraction, electron spin resonance, nitrogen adsorption-desorption analyses, zeta potential, ultraviolet–visible diffuse reflectance spectroscopy and photoluminescence analyses. Compared with SZN-O, the SZN-M possessed a higher number of Si-O-Zr bonds that led to a greater amount of oxygen vacancies, metal defect sites, larger pore size as well as surface area, and hence displayed excellent performance toward the degradation of toxic 2-chlorophenol, 2-CP (92%), while only 67% for the former. The SZN-M achieved to reduce the total organic carbon and biological oxygen demand up to 88% and 89%, respectively, while for SZN-O, the reduction was up to 82% and 84%. The catalysts still remained active after five cycles and are highly capable of degrading various chlorophenolic compounds that could be very beneficial for the wastewater treatment. Elsevier B.V. 2021-08 Article PeerReviewed Hassan, N. S. and Jalil, A. A. and Hussain, I. and Fauzi, A. A. and Azami, M. S. and Saravanan, R. and Hairon, N. H. H. (2021) Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts. Chemical Engineering and Processing - Process Intensification, 165 . ISSN 0255-2701 http://dx.doi.org/10.1016/j.cep.2021.108469 DOI: 10.1016/j.cep.2021.108469
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Hassan, N. S. Jalil, A. A. Hussain, I. Fauzi, A. A. Azami, M. S. Saravanan, R. Hairon, N. H. H. Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
description	The work aims to evaluate the efficient microwave (MW) drying method of silica-doped tetragonal zirconia nanocatalysts (SZN-M) for intensification of the degradation of toxic chlorophenolic compounds. The catalyst dried under a conventional oven (SZN-O) was also conducted for comparison. The MW drying time was reduced six times and three times less energy was used than the conventional oven drying. The catalysts were characterized by Fourier-transform infrared, X-ray diffraction, electron spin resonance, nitrogen adsorption-desorption analyses, zeta potential, ultraviolet–visible diffuse reflectance spectroscopy and photoluminescence analyses. Compared with SZN-O, the SZN-M possessed a higher number of Si-O-Zr bonds that led to a greater amount of oxygen vacancies, metal defect sites, larger pore size as well as surface area, and hence displayed excellent performance toward the degradation of toxic 2-chlorophenol, 2-CP (92%), while only 67% for the former. The SZN-M achieved to reduce the total organic carbon and biological oxygen demand up to 88% and 89%, respectively, while for SZN-O, the reduction was up to 82% and 84%. The catalysts still remained active after five cycles and are highly capable of degrading various chlorophenolic compounds that could be very beneficial for the wastewater treatment.
format	Article
author	Hassan, N. S. Jalil, A. A. Hussain, I. Fauzi, A. A. Azami, M. S. Saravanan, R. Hairon, N. H. H.
author_facet	Hassan, N. S. Jalil, A. A. Hussain, I. Fauzi, A. A. Azami, M. S. Saravanan, R. Hairon, N. H. H.
author_sort	Hassan, N. S.
title	Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
title_short	Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
title_full	Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
title_fullStr	Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
title_full_unstemmed	Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
title_sort	intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts
publisher	Elsevier B.V.
publishDate	2021
url	http://eprints.utm.my/id/eprint/94242/ http://dx.doi.org/10.1016/j.cep.2021.108469
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score	13.211869

Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts

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