Enhanced photocatalytic performance of CdO-WO3 composite for hydrogen production.
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| Title: | Enhanced photocatalytic performance of CdO-WO3 composite for hydrogen production. |
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| Authors: | Tahir, Muhammad Bilal1 (AUTHOR) m.bilaltahir@uog.edu.pk, Sagir, Muhammad2 (AUTHOR) m.sagir@uog.edu.pk, Abas, Naeem1,3 (AUTHOR) naeemkalair@uog.edu.pk |
| Source: | International Journal of Hydrogen Energy. Sep2019, Vol. 44 Issue 45, p24690-24697. 8p. |
| Subjects: | Hydrogen production, Platinum nanoparticles, Interstitial hydrogen generation, Electron-hole recombination, Scanning electron microscopes, Visible spectra, Grain size |
| Abstract: | Considering the renewability and cleanness of hydrogen generation system, the photocatalytic H 2 evolution through water splitting with assistance of Earth abundant co-catalysts has become a scientific hotspot. Efficient and visible light driven CdO-WO 3 composites with versatile properties have been fabricated through hydrothermal approach for H 2 evolution. X-ray diffractometer, scanning electron microscope, UV-Vis absorption spectroscopy, photoluminescence emission spectroscopy and photocatalytic activity test were employed to investigate different properties like crystallography, morphology, optical and photocatalytic properties. The effect of CdO concentration on the grain size indicated the reduction of bad gap energy of the WO 3. The concentration of CdO nanoparticles in WO 3 directly effect on the morphology of the particles that are in the form of nanorods. The atoms of CdO makes the WO 3 nanoparticles more effective and efficient up to 4% of CdO but when coupling amount increases then the CdO-WO 3 nanoparticles exhibited less photocatalytic performance to evolve H 2 energy. Results shown that 4% content in WO 3 had exceptional photocatalytic activity for water splitting when compared to other samples. The improved hydrogen production was allied with formation of active Cd species during the photocatalysis process, which has the ability to promote the interfacial charge-separation and concurrently may cause to reduce the over potential of hydrogen evolution, thus boosting the photocatalytic activity over the hybrid sample. The improved photocatalytic activity of composites could be accredited to extended absorption region of visible light, efficient separation of charge carrier's and suppress recombination of electron-hole pairs. The current work not only shows a prospect for the utilization of low cost CdO as a co-catalyst in photocatalytic hydrogen generation but also shows a substantial enhancement in H 2 evolution, first time, using CdO-WO 3 hybrid photocatalyst. • Successful synthesis of WO 3 @ CdO photocatalysts by hydrothermal method. • Extended visible-light absorption due to hybrid nanocomposites. • Efficient charge-separation due to synergistic effects of CdO in WO 3 photocatalyst. • Enhanced photocatalytic activity for nanocomposites under visible-light irradiation. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 138590963 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Enhanced photocatalytic performance of CdO-WO3 composite for hydrogen production. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tahir%2C+Muhammad+Bilal%22">Tahir, Muhammad Bilal</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> m.bilaltahir@uog.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Sagir%2C+Muhammad%22">Sagir, Muhammad</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> m.sagir@uog.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Abas%2C+Naeem%22">Abas, Naeem</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> naeemkalair@uog.edu.pk</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Sep2019, Vol. 44 Issue 45, p24690-24697. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hydrogen+production%22">Hydrogen production</searchLink><br /><searchLink fieldCode="DE" term="%22Platinum+nanoparticles%22">Platinum nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Interstitial+hydrogen+generation%22">Interstitial hydrogen generation</searchLink><br /><searchLink fieldCode="DE" term="%22Electron-hole+recombination%22">Electron-hole recombination</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopes%22">Scanning electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Visible+spectra%22">Visible spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+size%22">Grain size</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Considering the renewability and cleanness of hydrogen generation system, the photocatalytic H 2 evolution through water splitting with assistance of Earth abundant co-catalysts has become a scientific hotspot. Efficient and visible light driven CdO-WO 3 composites with versatile properties have been fabricated through hydrothermal approach for H 2 evolution. X-ray diffractometer, scanning electron microscope, UV-Vis absorption spectroscopy, photoluminescence emission spectroscopy and photocatalytic activity test were employed to investigate different properties like crystallography, morphology, optical and photocatalytic properties. The effect of CdO concentration on the grain size indicated the reduction of bad gap energy of the WO 3. The concentration of CdO nanoparticles in WO 3 directly effect on the morphology of the particles that are in the form of nanorods. The atoms of CdO makes the WO 3 nanoparticles more effective and efficient up to 4% of CdO but when coupling amount increases then the CdO-WO 3 nanoparticles exhibited less photocatalytic performance to evolve H 2 energy. Results shown that 4% content in WO 3 had exceptional photocatalytic activity for water splitting when compared to other samples. The improved hydrogen production was allied with formation of active Cd species during the photocatalysis process, which has the ability to promote the interfacial charge-separation and concurrently may cause to reduce the over potential of hydrogen evolution, thus boosting the photocatalytic activity over the hybrid sample. The improved photocatalytic activity of composites could be accredited to extended absorption region of visible light, efficient separation of charge carrier's and suppress recombination of electron-hole pairs. The current work not only shows a prospect for the utilization of low cost CdO as a co-catalyst in photocatalytic hydrogen generation but also shows a substantial enhancement in H 2 evolution, first time, using CdO-WO 3 hybrid photocatalyst. • Successful synthesis of WO 3 @ CdO photocatalysts by hydrothermal method. • Extended visible-light absorption due to hybrid nanocomposites. • Efficient charge-separation due to synergistic effects of CdO in WO 3 photocatalyst. • Enhanced photocatalytic activity for nanocomposites under visible-light irradiation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijhydene.2019.07.220 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 24690 Subjects: – SubjectFull: Hydrogen production Type: general – SubjectFull: Platinum nanoparticles Type: general – SubjectFull: Interstitial hydrogen generation Type: general – SubjectFull: Electron-hole recombination Type: general – SubjectFull: Scanning electron microscopes Type: general – SubjectFull: Visible spectra Type: general – SubjectFull: Grain size Type: general Titles: – TitleFull: Enhanced photocatalytic performance of CdO-WO3 composite for hydrogen production. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tahir, Muhammad Bilal – PersonEntity: Name: NameFull: Sagir, Muhammad – PersonEntity: Name: NameFull: Abas, Naeem IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 09 Text: Sep2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 03603199 Numbering: – Type: volume Value: 44 – Type: issue Value: 45 Titles: – TitleFull: International Journal of Hydrogen Energy Type: main |
| ResultId | 1 |
