Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode
The (WO3)1−x–(Fe2O3)x (0 ≤ x ≤ 1) nano-particle thin films with various compositions have been deposited onto the fluorine thin oxide (FTO) coated glass substrate using sol-gel, spin-coating technique. An electrode/electrolyte interface has been formed between an n-type (WO3)1−x–(Fe2O3)x composite s...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/18353 |
| _version_ | 1848749721457262592 |
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| author | Memar, Amir Phan, Chi Tade, Moses |
| author_facet | Memar, Amir Phan, Chi Tade, Moses |
| author_sort | Memar, Amir |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The (WO3)1−x–(Fe2O3)x (0 ≤ x ≤ 1) nano-particle thin films with various compositions have been deposited onto the fluorine thin oxide (FTO) coated glass substrate using sol-gel, spin-coating technique. An electrode/electrolyte interface has been formed between an n-type (WO3)1−x–(Fe2O3)x composite semiconductor and a 0.5 mol L−1 Na2SO4 aqueous solution. The photo-catalytic activity of the films has been investigated through the photocurrent-voltage. UV-visible spectroscopy, SEM and XRD have been used to characterize solar absorption, surface morphology and the crystallinity of samples, respectively. The photo-electrochemical (PEC) experiments were performed under solar irradiation to evaluate the amount of electron-hole generation in different samples. All the composite nano-particles indicated higher efficiency compared to pristine iron and tungsten oxides. A clear relationship was also confirmed between band gap energy and photo-catalytic activity of thin films. The band-gap energy of mixed thin films decreased linearly with the increasing Fe2O3 content in the film samples. The maximum photocurrent density of 2.34 mA cm−2 has been obtained for sample with x = 0.25 at 1.4 V vs. RHE. The result revealed that the sample also has the highest photon-to-current efficiency (0.87%), and solar absorption. |
| first_indexed | 2025-11-14T07:25:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-18353 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:25:26Z |
| publishDate | 2015 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-183532017-09-13T13:45:15Z Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode Memar, Amir Phan, Chi Tade, Moses Tungsten trioxide Composite nano-particle Photo-catalysis Iron oxide The (WO3)1−x–(Fe2O3)x (0 ≤ x ≤ 1) nano-particle thin films with various compositions have been deposited onto the fluorine thin oxide (FTO) coated glass substrate using sol-gel, spin-coating technique. An electrode/electrolyte interface has been formed between an n-type (WO3)1−x–(Fe2O3)x composite semiconductor and a 0.5 mol L−1 Na2SO4 aqueous solution. The photo-catalytic activity of the films has been investigated through the photocurrent-voltage. UV-visible spectroscopy, SEM and XRD have been used to characterize solar absorption, surface morphology and the crystallinity of samples, respectively. The photo-electrochemical (PEC) experiments were performed under solar irradiation to evaluate the amount of electron-hole generation in different samples. All the composite nano-particles indicated higher efficiency compared to pristine iron and tungsten oxides. A clear relationship was also confirmed between band gap energy and photo-catalytic activity of thin films. The band-gap energy of mixed thin films decreased linearly with the increasing Fe2O3 content in the film samples. The maximum photocurrent density of 2.34 mA cm−2 has been obtained for sample with x = 0.25 at 1.4 V vs. RHE. The result revealed that the sample also has the highest photon-to-current efficiency (0.87%), and solar absorption. 2015 Journal Article http://hdl.handle.net/20.500.11937/18353 10.1016/j.ijhydene.2015.05.016 Elsevier Ltd restricted |
| spellingShingle | Tungsten trioxide Composite nano-particle Photo-catalysis Iron oxide Memar, Amir Phan, Chi Tade, Moses Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title | Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title_full | Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title_fullStr | Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title_full_unstemmed | Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title_short | Photocatalytic activity of WO3/Fe2O3 nanocomposite photoanode |
| title_sort | photocatalytic activity of wo3/fe2o3 nanocomposite photoanode |
| topic | Tungsten trioxide Composite nano-particle Photo-catalysis Iron oxide |
| url | http://hdl.handle.net/20.500.11937/18353 |