A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides
The use of colored semiconductor oxide like copper (II) oxide and nickel (II) oxide for photocatalytic bleaching of rose bengal was investigated in detail. In order to harness the solar energy, the effective wavelength of the photocatalyst is to be expanded into the visible region and that increases...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2010-06-01
|
| Series: | Iranian Journal of Chemistry & Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.ijcce.ac.ir/article_6702_4ae65699051ad75d76a58abf02ab7084.pdf |
| _version_ | 1828242581217083392 |
|---|---|
| author | Pallavi Ameta Anil Kumar Rameshwar Ameta R.K. Malkani |
| author_facet | Pallavi Ameta Anil Kumar Rameshwar Ameta R.K. Malkani |
| author_sort | Pallavi Ameta |
| collection | DOAJ |
| description | The use of colored semiconductor oxide like copper (II) oxide and nickel (II) oxide for photocatalytic bleaching of rose bengal was investigated in detail. In order to harness the solar energy, the effective wavelength of the photocatalyst is to be expanded into the visible region and that increases the rate of photocatalytic bleaching of the dye. Progress of the reaction was observed spectrophotometrically. The comparative studies of photocatalytic activity of copper (II) oxide (CuO) and nickel (II) oxide (NiO) was made using photocatalytic bleaching of rose bengal as modal system. The effect of various parameters like concentration of dye, pH, amount of semiconductor, light intensity etc. on the rate of photocatalytic bleaching of the dye was also observed. On the basis of rate of the reaction (rate constant) the order of photocatalytic activities of the semiconductor oxides was found to be CuO > NiO. A tentative mechanism for the photocatalytic bleaching of rose bengal has also been proposed. |
| first_indexed | 2024-04-12T22:18:31Z |
| format | Article |
| id | doaj.art-689e65487328411eb7cb9328a9a2932c |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-04-12T22:18:31Z |
| publishDate | 2010-06-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-689e65487328411eb7cb9328a9a2932c2022-12-22T03:14:27ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862010-06-0129243486702A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting OxidesPallavi Ameta0Anil Kumar1Rameshwar Ameta2R.K. Malkani3Photochemistry and Solar Energy Laboratory, Department of Chemisry, M.L. Sukhadia University, Udaipur (Rajasthan), 313001, INDIAPhotochemistry and Solar Energy Laboratory, Department of Chemisry, M.L. Sukhadia University, Udaipur (Rajasthan), 313001, INDIAGovt. Meera Girls P.G. College, Udaipur, 313001, INDIAPhotochemistry and Solar Energy Laboratory, Department of Chemisry, M.L. Sukhadia University, Udaipur (Rajasthan), 313001, INDIAThe use of colored semiconductor oxide like copper (II) oxide and nickel (II) oxide for photocatalytic bleaching of rose bengal was investigated in detail. In order to harness the solar energy, the effective wavelength of the photocatalyst is to be expanded into the visible region and that increases the rate of photocatalytic bleaching of the dye. Progress of the reaction was observed spectrophotometrically. The comparative studies of photocatalytic activity of copper (II) oxide (CuO) and nickel (II) oxide (NiO) was made using photocatalytic bleaching of rose bengal as modal system. The effect of various parameters like concentration of dye, pH, amount of semiconductor, light intensity etc. on the rate of photocatalytic bleaching of the dye was also observed. On the basis of rate of the reaction (rate constant) the order of photocatalytic activities of the semiconductor oxides was found to be CuO > NiO. A tentative mechanism for the photocatalytic bleaching of rose bengal has also been proposed.http://www.ijcce.ac.ir/article_6702_4ae65699051ad75d76a58abf02ab7084.pdfphotocatalystsphotocatalytic degradationrose bengalcupric oxidenickel oxidephotocatalytic activity |
| spellingShingle | Pallavi Ameta Anil Kumar Rameshwar Ameta R.K. Malkani A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides Iranian Journal of Chemistry & Chemical Engineering photocatalysts photocatalytic degradation rose bengal cupric oxide nickel oxide photocatalytic activity |
| title | A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides |
| title_full | A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides |
| title_fullStr | A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides |
| title_full_unstemmed | A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides |
| title_short | A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides |
| title_sort | comparative study of photocatalytic activity of some coloured semiconducting oxides |
| topic | photocatalysts photocatalytic degradation rose bengal cupric oxide nickel oxide photocatalytic activity |
| url | http://www.ijcce.ac.ir/article_6702_4ae65699051ad75d76a58abf02ab7084.pdf |
| work_keys_str_mv | AT pallaviameta acomparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT anilkumar acomparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT rameshwarameta acomparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT rkmalkani acomparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT pallaviameta comparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT anilkumar comparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT rameshwarameta comparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides AT rkmalkani comparativestudyofphotocatalyticactivityofsomecolouredsemiconductingoxides |