Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
0.5 - 2.0% CuO-doped ZnO (CuO-ZnO) photocatalysts were prepared with a simple mixing method where the oxides were initially synthesized through precipitation. The physico-chemical properties of CuO-doped ZnO photocatalysts were studied via XRD, TEM, XRF and BET method and their photoactivity was eva...
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| Format: | Article |
| Language: | English English |
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2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/25182/ http://psasir.upm.edu.my/id/eprint/25182/1/Degradation%20of%20methyl%20orange%20mediated%20by%20CuO.pdf |
| _version_ | 1848845239603691520 |
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| author | Razali, Nor Zafirah Abdullah, Abdul Halim Haron, Md. Jelas |
| author_facet | Razali, Nor Zafirah Abdullah, Abdul Halim Haron, Md. Jelas |
| author_sort | Razali, Nor Zafirah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 0.5 - 2.0% CuO-doped ZnO (CuO-ZnO) photocatalysts were prepared with a simple mixing method where the oxides were initially synthesized through precipitation. The physico-chemical properties of CuO-doped ZnO photocatalysts were studied via XRD, TEM, XRF and BET method and their photoactivity was evaluated by degrading methyl orange (MO) dye. The properties of ZnO were not affected by the addition of CuO except for the particle size of the photocatalyst, which increased proportionally with CuO. In a photoactivity study, 1.0% CuO-ZnO photocatalyst has the highest degradation rate with the optimum mass loading of 1.5 g L-1. Increasing the initial concentration of MO reduced photocatalysts' photoactivity. The degradation of MO followed the pseudo-first order reaction. The photoactivity of CuO-ZnO was maintained until the fifth cycle, which indicates that it is a very stable compound.
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| first_indexed | 2025-11-15T08:43:39Z |
| format | Article |
| id | upm-25182 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:43:39Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-251822015-10-30T08:29:47Z http://psasir.upm.edu.my/id/eprint/25182/ Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts. Razali, Nor Zafirah Abdullah, Abdul Halim Haron, Md. Jelas 0.5 - 2.0% CuO-doped ZnO (CuO-ZnO) photocatalysts were prepared with a simple mixing method where the oxides were initially synthesized through precipitation. The physico-chemical properties of CuO-doped ZnO photocatalysts were studied via XRD, TEM, XRF and BET method and their photoactivity was evaluated by degrading methyl orange (MO) dye. The properties of ZnO were not affected by the addition of CuO except for the particle size of the photocatalyst, which increased proportionally with CuO. In a photoactivity study, 1.0% CuO-ZnO photocatalyst has the highest degradation rate with the optimum mass loading of 1.5 g L-1. Increasing the initial concentration of MO reduced photocatalysts' photoactivity. The degradation of MO followed the pseudo-first order reaction. The photoactivity of CuO-ZnO was maintained until the fifth cycle, which indicates that it is a very stable compound. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/25182/1/Degradation%20of%20methyl%20orange%20mediated%20by%20CuO.pdf Razali, Nor Zafirah and Abdullah, Abdul Halim and Haron, Md. Jelas (2011) Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts. Environmental Engineering and Management Journal, 10 (10). pp. 1523-1528. ISSN 1582-9596 English |
| spellingShingle | Razali, Nor Zafirah Abdullah, Abdul Halim Haron, Md. Jelas Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts. |
| title | Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
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| title_full | Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
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| title_fullStr | Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
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| title_full_unstemmed | Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
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| title_short | Degradation of methyl orange mediated by CuO-doped ZnO phoycatalysts.
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| title_sort | degradation of methyl orange mediated by cuo-doped zno phoycatalysts. |
| url | http://psasir.upm.edu.my/id/eprint/25182/ http://psasir.upm.edu.my/id/eprint/25182/1/Degradation%20of%20methyl%20orange%20mediated%20by%20CuO.pdf |