Staff View: Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green

Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green

Copper oxide loaded on HY zeolite (CuO/HY) catalyst was prepared via a facile electrochemical method, and its photoactivity was evaluated by the decolorization of malachite green (MG) under fluorescent light irradiation. The physicochemical properties of catalysts were characterized by X-ray diffrac...

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Main Authors:	Hassan, N. S., A. Jalil, A., Satar, M. A. H., C. Hitam, C. N., A. Aziz, F. F., Fauzi, A. A., A. Aziz, M. A., Bahruji, H.
Format:	Article
Published:	Springer Science+Business Media, LLC 2020
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/93417/ http://dx.doi.org/10.1007/s11244-020-01314-y
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spelling	my.utm.934172021-11-30T08:33:24Z http://eprints.utm.my/id/eprint/93417/ Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green Hassan, N. S. A. Jalil, A. Satar, M. A. H. C. Hitam, C. N. A. Aziz, F. F. Fauzi, A. A. A. Aziz, M. A. Bahruji, H. TP Chemical technology Copper oxide loaded on HY zeolite (CuO/HY) catalyst was prepared via a facile electrochemical method, and its photoactivity was evaluated by the decolorization of malachite green (MG) under fluorescent light irradiation. The physicochemical properties of catalysts were characterized by X-ray diffraction (XRD), nitrogen (N2) adsorption–desorption, 27Al and 29Si magic-angle-spinning nuclear magnetic (MAS NMR), transmission electron microscopy (TEM), Fourier transform infra-red spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS). The results showed that CuO nanoparticles are well-distributed on HY support. Besides, the isomorphous substitution of Al3+ with Cu2+ was occurred to form Si–O–Cu bond, as confirmed by the 27Al and 29Si MAS NMR, FTIR and XPS analysis. The catalyst activity towards on decolorization of MG was ranked in the following order: 3 wt% CuO/HY (99%) > 5 wt% CuO/HY (86%) > 1 wt% CuO/HY (80%) > HY (41%) > CuO (17%). The highest decolorization by 3 wt% CuO/HY is due to the well distribution of CuO nanoparticles on the HY surface of as well as the Cu incorporated into HY frameworks. In terms of turnover frequency, the 1 wt% CuO/HY showed a higher value (7.95 × 10−4 min−1) compared to the 3 wt% CuO/HY (3.13 × 10−4 min−1) and 5 wt% CuO/HY (1.64 × 10−4 min−1). The decreased of chemical oxygen demand demonstrated that the relationship between decolorization and degradability exists. A kinetic study indicated that the photocatalytic process follows a pseudo-first-order kinetics represented by the Langmuir–Hinshelwood model with the rate determining step as a surface reaction. Springer Science+Business Media, LLC 2020-10-01 Article PeerReviewed Hassan, N. S. and A. Jalil, A. and Satar, M. A. H. and C. Hitam, C. N. and A. Aziz, F. F. and Fauzi, A. A. and A. Aziz, M. A. and Bahruji, H. (2020) Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green. Topics in Catalysis, 63 (11-14). pp. 1005-1016. ISSN 1022-5528 http://dx.doi.org/10.1007/s11244-020-01314-y DOI:10.1007/s11244-020-01314-y
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. A. Jalil, A. Satar, M. A. H. C. Hitam, C. N. A. Aziz, F. F. Fauzi, A. A. A. Aziz, M. A. Bahruji, H. Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
description	Copper oxide loaded on HY zeolite (CuO/HY) catalyst was prepared via a facile electrochemical method, and its photoactivity was evaluated by the decolorization of malachite green (MG) under fluorescent light irradiation. The physicochemical properties of catalysts were characterized by X-ray diffraction (XRD), nitrogen (N2) adsorption–desorption, 27Al and 29Si magic-angle-spinning nuclear magnetic (MAS NMR), transmission electron microscopy (TEM), Fourier transform infra-red spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS). The results showed that CuO nanoparticles are well-distributed on HY support. Besides, the isomorphous substitution of Al3+ with Cu2+ was occurred to form Si–O–Cu bond, as confirmed by the 27Al and 29Si MAS NMR, FTIR and XPS analysis. The catalyst activity towards on decolorization of MG was ranked in the following order: 3 wt% CuO/HY (99%) > 5 wt% CuO/HY (86%) > 1 wt% CuO/HY (80%) > HY (41%) > CuO (17%). The highest decolorization by 3 wt% CuO/HY is due to the well distribution of CuO nanoparticles on the HY surface of as well as the Cu incorporated into HY frameworks. In terms of turnover frequency, the 1 wt% CuO/HY showed a higher value (7.95 × 10−4 min−1) compared to the 3 wt% CuO/HY (3.13 × 10−4 min−1) and 5 wt% CuO/HY (1.64 × 10−4 min−1). The decreased of chemical oxygen demand demonstrated that the relationship between decolorization and degradability exists. A kinetic study indicated that the photocatalytic process follows a pseudo-first-order kinetics represented by the Langmuir–Hinshelwood model with the rate determining step as a surface reaction.
format	Article
author	Hassan, N. S. A. Jalil, A. Satar, M. A. H. C. Hitam, C. N. A. Aziz, F. F. Fauzi, A. A. A. Aziz, M. A. Bahruji, H.
author_facet	Hassan, N. S. A. Jalil, A. Satar, M. A. H. C. Hitam, C. N. A. Aziz, F. F. Fauzi, A. A. A. Aziz, M. A. Bahruji, H.
author_sort	Hassan, N. S.
title	Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
title_short	Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
title_full	Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
title_fullStr	Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
title_full_unstemmed	Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green
title_sort	novel fabrication of photoactive cuo/hy zeolite as an efficient catalyst for photodecolorization of malachite green
publisher	Springer Science+Business Media, LLC
publishDate	2020
url	http://eprints.utm.my/id/eprint/93417/ http://dx.doi.org/10.1007/s11244-020-01314-y
_version_	1718926065069457408
score	13.211869

Novel fabrication of photoactive CuO/HY Zeolite as an efficient catalyst for photodecolorization of malachite green

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