Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method
Photocatalytic removal of phenol under UV light irradiation was studied on zinc oxide (ZnO) photocatalysts, which were prepared via direct calcination (DC), and co-precipitation (CP) methods. The XRD patterns revealed that all the prepared ZnO samples showed wurtzite structure, in which the ZnO-CP s...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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2015
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| Online Access: | http://eprints.utm.my/61786/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf |
| _version_ | 1796861162223042560 |
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| author | Hussin, Faisal Lintang, Hendrik O. Siew, Ling Lee Yuliati, Leny |
| author_facet | Hussin, Faisal Lintang, Hendrik O. Siew, Ling Lee Yuliati, Leny |
| author_sort | Hussin, Faisal |
| collection | ePrints |
| description | Photocatalytic removal of phenol under UV light irradiation was studied on zinc oxide (ZnO) photocatalysts, which were prepared via direct calcination (DC), and co-precipitation (CP) methods. The XRD patterns revealed that all the prepared ZnO samples showed wurtzite structure, in which the ZnO-CP showed higher intensity of the diffraction peaks than the ZnO-DC sample. Optical and fluorescence properties of the prepared ZnO samples were similar to each other as confirmed by DR UV-Vis and fluorescence spectroscopies, respectively. The Stern-Volmer plot was investigated to study the interactions between the emission sites and the phenol. It was obtained that the emission sites of the ZnO-CP gave better interactions towards phenol molecules as compared to the ZnO-DC. After 6 hours reaction under UV light irradiation, the ZnO-CP sample showed 2 times higher photocatalytic activity for removal of phenol (10%) than that of the ZnO-DC (5%). It was suggested that the high activity observed on the ZnO-CP sample would be due to high crystallinity and good interactions with phenol. These results clearly suggested that the co-precipitation method was a good approach to prepare the highly active ZnO for the photocatalytic removal of phenol. |
| first_indexed | 2024-03-05T19:52:11Z |
| format | Conference or Workshop Item |
| id | utm.eprints-61786 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:52:11Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | utm.eprints-617862017-04-26T06:33:51Z http://eprints.utm.my/61786/ Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method Hussin, Faisal Lintang, Hendrik O. Siew, Ling Lee Yuliati, Leny QD Chemistry Photocatalytic removal of phenol under UV light irradiation was studied on zinc oxide (ZnO) photocatalysts, which were prepared via direct calcination (DC), and co-precipitation (CP) methods. The XRD patterns revealed that all the prepared ZnO samples showed wurtzite structure, in which the ZnO-CP showed higher intensity of the diffraction peaks than the ZnO-DC sample. Optical and fluorescence properties of the prepared ZnO samples were similar to each other as confirmed by DR UV-Vis and fluorescence spectroscopies, respectively. The Stern-Volmer plot was investigated to study the interactions between the emission sites and the phenol. It was obtained that the emission sites of the ZnO-CP gave better interactions towards phenol molecules as compared to the ZnO-DC. After 6 hours reaction under UV light irradiation, the ZnO-CP sample showed 2 times higher photocatalytic activity for removal of phenol (10%) than that of the ZnO-DC (5%). It was suggested that the high activity observed on the ZnO-CP sample would be due to high crystallinity and good interactions with phenol. These results clearly suggested that the co-precipitation method was a good approach to prepare the highly active ZnO for the photocatalytic removal of phenol. 2015 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/61786/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf Hussin, Faisal and Lintang, Hendrik O. and Siew, Ling Lee and Yuliati, Leny (2015) Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method. In: One Day EU-Asean Symposium and Workshop on Photocatalysis 2015, 24 Nov, 2015, Skudai, Johor. http://www.utm.my/social-media/blog/one-day-eu-asean-symposium-and-workshop-on-photocatalysis/ |
| spellingShingle | QD Chemistry Hussin, Faisal Lintang, Hendrik O. Siew, Ling Lee Yuliati, Leny Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title | Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title_full | Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title_fullStr | Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title_full_unstemmed | Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title_short | Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method |
| title_sort | preparation of highly active zinc oxide for photocatalytic removal of phenol direct calcination versus co precipitation method |
| topic | QD Chemistry |
| url | http://eprints.utm.my/61786/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf |
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