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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 of the prepared ZnO samples showed wurtzite structure, in which the ZnO-C...

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Main Authors: Lee, Siew Ling, Lintang, Hendrik Oktendy, Leny Yuliati, Leny Yuliati, Hussin, Faisal
Format: Article
Language:English
Published: Penerbit UTM Press 2015
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/60384/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf
http://eprints.utm.my/id/eprint/60384/
http://dx.doi.org/10.11113/mjfas.v11n3.384
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spelling my.utm.603842021-08-22T08:12:01Z http://eprints.utm.my/id/eprint/60384/ Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method Lee, Siew Ling Lintang, Hendrik Oktendy Leny Yuliati, Leny Yuliati Hussin, Faisal 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 of 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 spectroscopy, 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 two 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. Penerbit UTM Press 2015 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/60384/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf Lee, Siew Ling and Lintang, Hendrik Oktendy and Leny Yuliati, Leny Yuliati and Hussin, Faisal (2015) Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method. Malaysian Journal Of Fundamental And Applied Sciences, 11 (3). pp. 134-138. ISSN 2289-5981 http://dx.doi.org/10.11113/mjfas.v11n3.384 DOI: 10.11113/mjfas.v11n3.384
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Lee, Siew Ling
Lintang, Hendrik Oktendy
Leny Yuliati, Leny Yuliati
Hussin, Faisal
Preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method
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 of 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 spectroscopy, 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 two 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.
format Article
author Lee, Siew Ling
Lintang, Hendrik Oktendy
Leny Yuliati, Leny Yuliati
Hussin, Faisal
author_facet Lee, Siew Ling
Lintang, Hendrik Oktendy
Leny Yuliati, Leny Yuliati
Hussin, Faisal
author_sort Lee, Siew Ling
title 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_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_sort preparation of highly active zinc oxide for photocatalytic removal of phenol: direct calcination versus co-precipitation method
publisher Penerbit UTM Press
publishDate 2015
url http://eprints.utm.my/id/eprint/60384/1/LenyYuliati2015_PreparationofHighlyActiveZincOxide.pdf
http://eprints.utm.my/id/eprint/60384/
http://dx.doi.org/10.11113/mjfas.v11n3.384
_version_ 1709667364533960704
score 13.211869

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