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Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency

The coexistence of pharmaceutical compounds and heavy metals in the aquatic environment has resulted in complications in the treatment process and thus, causing uproar among the citizens. The radical-based photocatalysis technology has aroused as an excellent method to eliminate both heavy metal and...

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Main Authors: Izzudin, N. M., A. Jalil, A., Ali, M. W., Aziz, F. F. A., Azami, M. S., Hassan, N. S., Fauzi, A. A., Ibrahim, N., Saravanan, R., Hassim, M. H.
Format: Article
Language:English
Published: Elsevier Ltd 2022
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/103205/1/AishahAbdJalil2022_PromotingaWellDispersionofMoO3Nanoparticles.pdf
http://eprints.utm.my/103205/
http://dx.doi.org/10.1016/j.chemosphere.2022.136456
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spelling my.utm.1032052023-10-24T09:43:54Z http://eprints.utm.my/103205/ Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency Izzudin, N. M. A. Jalil, A. Ali, M. W. Aziz, F. F. A. Azami, M. S. Hassan, N. S. Fauzi, A. A. Ibrahim, N. Saravanan, R. Hassim, M. H. TP Chemical technology The coexistence of pharmaceutical compounds and heavy metals in the aquatic environment has resulted in complications in the treatment process and thus, causing uproar among the citizens. The radical-based photocatalysis technology has aroused as an excellent method to eliminate both heavy metal and pharmaceutical compounds in the water. Herein, reported the utilization of the microemulsion technique for the preparation of nanoporous fibrous silica-molybdenum oxide (FSMo) towards simultaneous photocatalytic abatement of hexavalent chromium (Cr(VI)) and tetracycline (TC). The FESEM analysis showed the spherical morphology of the FSMo catalyst with dendrimeric silica fiber. The synthesized FSMo catalyst exhibited narrowed bandgap, high crystallinity, and well Mo element dispersion for enhanced photo-redox of Cr(VI) and TC. Remarkably, simultaneous remediation of the Cr(VI) and TC over FSMo demonstrated superior photocatalytic efficiency, 69% and 75%, respectively, than in the individual system, possibly due to the effective separation of photoinduced charges. The introduction of the Mo element to the silica framework via microemulsion technique demonstrated better dispersion of Mo compared to the incipient wetness impregnation method and thus, yielded higher photocatalytic activity towards simultaneous removal of TC and Cr(VI). Besides, quenching experiments revealed the electrons and holes as the active species that play a dominant role in the simultaneous photo-redox of Cr(VI) and TC. Lastly, the FSMo catalyst demonstrated high stability after four continuous cycles of simultaneous photocatalysis reactions, implying its potential as a suitable material for practical wastewater treatments. Elsevier Ltd 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/103205/1/AishahAbdJalil2022_PromotingaWellDispersionofMoO3Nanoparticles.pdf Izzudin, N. M. and A. Jalil, A. and Ali, M. W. and Aziz, F. F. A. and Azami, M. S. and Hassan, N. S. and Fauzi, A. A. and Ibrahim, N. and Saravanan, R. and Hassim, M. H. (2022) Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency. Chemosphere, 308 (NA). pp. 1-13. ISSN 0045-6535 http://dx.doi.org/10.1016/j.chemosphere.2022.136456 DOI : 10.1016/j.chemosphere.2022.136456
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/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Izzudin, N. M.
A. Jalil, A.
Ali, M. W.
Aziz, F. F. A.
Azami, M. S.
Hassan, N. S.
Fauzi, A. A.
Ibrahim, N.
Saravanan, R.
Hassim, M. H.
Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
description The coexistence of pharmaceutical compounds and heavy metals in the aquatic environment has resulted in complications in the treatment process and thus, causing uproar among the citizens. The radical-based photocatalysis technology has aroused as an excellent method to eliminate both heavy metal and pharmaceutical compounds in the water. Herein, reported the utilization of the microemulsion technique for the preparation of nanoporous fibrous silica-molybdenum oxide (FSMo) towards simultaneous photocatalytic abatement of hexavalent chromium (Cr(VI)) and tetracycline (TC). The FESEM analysis showed the spherical morphology of the FSMo catalyst with dendrimeric silica fiber. The synthesized FSMo catalyst exhibited narrowed bandgap, high crystallinity, and well Mo element dispersion for enhanced photo-redox of Cr(VI) and TC. Remarkably, simultaneous remediation of the Cr(VI) and TC over FSMo demonstrated superior photocatalytic efficiency, 69% and 75%, respectively, than in the individual system, possibly due to the effective separation of photoinduced charges. The introduction of the Mo element to the silica framework via microemulsion technique demonstrated better dispersion of Mo compared to the incipient wetness impregnation method and thus, yielded higher photocatalytic activity towards simultaneous removal of TC and Cr(VI). Besides, quenching experiments revealed the electrons and holes as the active species that play a dominant role in the simultaneous photo-redox of Cr(VI) and TC. Lastly, the FSMo catalyst demonstrated high stability after four continuous cycles of simultaneous photocatalysis reactions, implying its potential as a suitable material for practical wastewater treatments.
format Article
author Izzudin, N. M.
A. Jalil, A.
Ali, M. W.
Aziz, F. F. A.
Azami, M. S.
Hassan, N. S.
Fauzi, A. A.
Ibrahim, N.
Saravanan, R.
Hassim, M. H.
author_facet Izzudin, N. M.
A. Jalil, A.
Ali, M. W.
Aziz, F. F. A.
Azami, M. S.
Hassan, N. S.
Fauzi, A. A.
Ibrahim, N.
Saravanan, R.
Hassim, M. H.
author_sort Izzudin, N. M.
title Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
title_short Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
title_full Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
title_fullStr Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
title_full_unstemmed Promoting a well-dispersion of MoO3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
title_sort promoting a well-dispersion of moo3 nanoparticles on fibrous silica catalyst via one-pot synthesis for enhanced photoredox environmental pollutants efficiency
publisher Elsevier Ltd
publishDate 2022
url http://eprints.utm.my/103205/1/AishahAbdJalil2022_PromotingaWellDispersionofMoO3Nanoparticles.pdf
http://eprints.utm.my/103205/
http://dx.doi.org/10.1016/j.chemosphere.2022.136456
_version_ 1781777661780033536
score 13.211869

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