The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles
In this study, a detailed investigation on the effect of zinc oxide (ZnO) quantum dots (QDs) embedment on the physicochemical properties of anatase titanium dioxide (TiO2) was conducted. The highly porous nanocomposite labelled as ZQT was prepared via the sol-gel assisted hydrothermal method. The p...
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my.iium.irep.924492021-09-23T03:59:46Z http://irep.iium.edu.my/92449/ The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles Iqbal, Anwar Usman, Saidu Adam, Farook Sreekantan, Srimala Jasni, Normawati Ahmad, Mohammad Norazmi QD Chemistry In this study, a detailed investigation on the effect of zinc oxide (ZnO) quantum dots (QDs) embedment on the physicochemical properties of anatase titanium dioxide (TiO2) was conducted. The highly porous nanocomposite labelled as ZQT was prepared via the sol-gel assisted hydrothermal method. The powder X-ray diffraction (XRD) analysis indicates that the average crystallite size of the ZnO QDs, anatase TiO2 (TiO2 NPs) and ZQT were 4.45 nm, 9.22 nm and 11.38 nm, respectively. Photoluminescent (PL) analysis detected the presence of defects related to TiO2, oxygen vacancies and quantum confinement effect (QCE) of the ZnO QDs in ZQT. These features enhanced the photodegradation of tetracycline (TC) under 48 watt of fluorescent light irradiation when ZQT (98.0%) was used compared to TiO2 NPs (32.4%) and ZnO QDs (68.8%). The photodegradation activity was driven by O2 ●− followed by ●OH and h+. Universiti Sains Malaysia 2021-08-25 Article PeerReviewed application/pdf en http://irep.iium.edu.my/92449/1/92449_The%20Effects%20of%20Zinc%20Oxide%20%28ZnO%29%20Quantum%20Dots%20%28QDs%29%20Embedment.pdf Iqbal, Anwar and Usman, Saidu and Adam, Farook and Sreekantan, Srimala and Jasni, Normawati and Ahmad, Mohammad Norazmi (2021) The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles. Journal of Physical Science, 32 (2). pp. 71-85. ISSN 1675-3402 E-ISSN 2180-4230 https://jps.usm.my/the-effects-of-zinc-oxide-zno-quantum-dots-qds-embedment-on-the-physicochemical-properties-and-photocatalytic-activity-of-titanium-dioxide-tio2-nanoparticles/ https://doi.org/10.21315/jps2021.32.2.6 |
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QD Chemistry Iqbal, Anwar Usman, Saidu Adam, Farook Sreekantan, Srimala Jasni, Normawati Ahmad, Mohammad Norazmi The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
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In this study, a detailed investigation on the effect of zinc oxide (ZnO)
quantum dots (QDs) embedment on the physicochemical properties of anatase titanium dioxide (TiO2) was conducted. The highly porous nanocomposite labelled as ZQT was prepared via the sol-gel assisted hydrothermal method. The powder X-ray diffraction (XRD) analysis indicates that the average crystallite size of the ZnO QDs, anatase TiO2
(TiO2 NPs) and ZQT were 4.45 nm, 9.22 nm and 11.38 nm, respectively. Photoluminescent (PL) analysis detected the presence of defects related to TiO2, oxygen vacancies and quantum confinement effect (QCE) of the ZnO QDs in ZQT. These features enhanced the photodegradation of tetracycline (TC) under 48 watt of fluorescent light irradiation
when ZQT (98.0%) was used compared to TiO2 NPs (32.4%) and ZnO QDs (68.8%). The photodegradation activity was driven by O2 ●− followed by ●OH and h+. |
format |
Article |
author |
Iqbal, Anwar Usman, Saidu Adam, Farook Sreekantan, Srimala Jasni, Normawati Ahmad, Mohammad Norazmi |
author_facet |
Iqbal, Anwar Usman, Saidu Adam, Farook Sreekantan, Srimala Jasni, Normawati Ahmad, Mohammad Norazmi |
author_sort |
Iqbal, Anwar |
title |
The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
title_short |
The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
title_full |
The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
title_fullStr |
The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
title_full_unstemmed |
The Effects of Zinc Oxide (ZnO) Quantum Dots (QDs) Embedment on the Physicochemical Properties and Photocatalytic Activity of Titanium Dioxide (TiO2) Nanoparticles |
title_sort |
effects of zinc oxide (zno) quantum dots (qds) embedment on the physicochemical properties and photocatalytic activity of titanium dioxide (tio2) nanoparticles |
publisher |
Universiti Sains Malaysia |
publishDate |
2021 |
url |
http://irep.iium.edu.my/92449/1/92449_The%20Effects%20of%20Zinc%20Oxide%20%28ZnO%29%20Quantum%20Dots%20%28QDs%29%20Embedment.pdf http://irep.iium.edu.my/92449/ https://jps.usm.my/the-effects-of-zinc-oxide-zno-quantum-dots-qds-embedment-on-the-physicochemical-properties-and-photocatalytic-activity-of-titanium-dioxide-tio2-nanoparticles/ https://doi.org/10.21315/jps2021.32.2.6 |
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