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...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2022
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| Online Access: | http://eprints.utm.my/103205/1/AishahAbdJalil2022_PromotingaWellDispersionofMoO3Nanoparticles.pdf |
| _version_ | 1796867415275995136 |
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| 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. |
| collection | ePrints |
| 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. |
| first_indexed | 2024-03-05T21:26:54Z |
| format | Article |
| id | utm.eprints-103205 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T21:26:54Z |
| publishDate | 2022 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-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 |
| 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 |
| title | 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_short | 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 |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/103205/1/AishahAbdJalil2022_PromotingaWellDispersionofMoO3Nanoparticles.pdf |
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