Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications
Different amounts of Ni-doped TiO2 (Ni=0.1 to 10%) powders and thin films were prepared by following a conventional coprecipitation and sol-gel dip coating techniques, respectively, at 400 to 800°C, and were thoroughly characterized by means of XRD, FT-IR, FT-Raman, DRS, UV-visible, BET surface area...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/127326 |
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| author | Ibram Ganesh A. K. Gupta P. P. Kumar P. S. C. Sekhar K. Radha G. Padmanabham G. Sundararajan |
| author_facet | Ibram Ganesh A. K. Gupta P. P. Kumar P. S. C. Sekhar K. Radha G. Padmanabham G. Sundararajan |
| author_sort | Ibram Ganesh |
| collection | DOAJ |
| description | Different amounts of Ni-doped TiO2 (Ni=0.1 to 10%) powders and thin films were prepared by following a conventional coprecipitation and sol-gel dip coating techniques, respectively, at 400 to 800°C, and were thoroughly characterized by means of XRD, FT-IR, FT-Raman, DRS, UV-visible, BET surface area, zeta potential, flat band potential, and photocurrent measurement techniques. Photocatalytic abilities of Ni-doped TiO2 powders were evaluated by means of methylene blue (MB) degradation reaction under simulated solar light. Characterization results suggest that as a dopant, Ni stabilizes TiO2 in the form of anatase phase, reduces its bandgap energy, and adjusts its flat band potentials such that this material can be employed for photoelectrochemical (PEC) oxidation of water reaction. The photocatalytic activity and photocurrent ability of TiO2 have been enhanced by doping of Ni in TiO2. The kinetic studies revealed that the MB degradation reaction follows the Langmuir-Hinshelwood first-order reaction relationship. |
| format | Article |
| id | doaj-art-2a0e15ac21b4404fbfd86012beb92f78 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-2a0e15ac21b4404fbfd86012beb92f782025-02-03T01:29:16ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/127326127326Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic ApplicationsIbram Ganesh0A. K. Gupta1P. P. Kumar2P. S. C. Sekhar3K. Radha4G. Padmanabham5G. Sundararajan6Laboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaLaboratory for Photoelectrochemical (PEC) Cells and Advanced Ceramics, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur PO, Hyderabad 500005, IndiaDifferent amounts of Ni-doped TiO2 (Ni=0.1 to 10%) powders and thin films were prepared by following a conventional coprecipitation and sol-gel dip coating techniques, respectively, at 400 to 800°C, and were thoroughly characterized by means of XRD, FT-IR, FT-Raman, DRS, UV-visible, BET surface area, zeta potential, flat band potential, and photocurrent measurement techniques. Photocatalytic abilities of Ni-doped TiO2 powders were evaluated by means of methylene blue (MB) degradation reaction under simulated solar light. Characterization results suggest that as a dopant, Ni stabilizes TiO2 in the form of anatase phase, reduces its bandgap energy, and adjusts its flat band potentials such that this material can be employed for photoelectrochemical (PEC) oxidation of water reaction. The photocatalytic activity and photocurrent ability of TiO2 have been enhanced by doping of Ni in TiO2. The kinetic studies revealed that the MB degradation reaction follows the Langmuir-Hinshelwood first-order reaction relationship.http://dx.doi.org/10.1100/2012/127326 |
| spellingShingle | Ibram Ganesh A. K. Gupta P. P. Kumar P. S. C. Sekhar K. Radha G. Padmanabham G. Sundararajan Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications The Scientific World Journal |
| title | Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications |
| title_full | Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications |
| title_fullStr | Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications |
| title_full_unstemmed | Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications |
| title_short | Preparation and Characterization of Ni-Doped TiO2 Materials for Photocurrent and Photocatalytic Applications |
| title_sort | preparation and characterization of ni doped tio2 materials for photocurrent and photocatalytic applications |
| url | http://dx.doi.org/10.1100/2012/127326 |
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