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Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction

In this paper, ZnO heterojunction with Ag 2 CO 3 /Ag 2 O mixed phase was synthesized by precipitation and phase transformation routes. The synthesized photocatalysts were characterized by X-ray diffraction (XRD), BET specific surface area, field emission scanning electron microscopy (FESEM), transmi...

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Main Authors: Rosman, Nurafiqah, Wan Salleh, Wan Norharyati, Ismail, Ahmad Fauzi, Jaafar, Juhana, Harun, Zawati, Aziz, Farhana, Mohamed, Mohamad Azuwa, Ohtani, Bunsho, Takashima, Mai
Format: Article
Published: Elsevier B.V. 2018
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/84628/
http://dx.doi.org/10.1016/j.jphotochem.2018.06.029
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spelling my.utm.846282020-02-27T03:21:08Z http://eprints.utm.my/id/eprint/84628/ Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction Rosman, Nurafiqah Wan Salleh, Wan Norharyati Ismail, Ahmad Fauzi Jaafar, Juhana Harun, Zawati Aziz, Farhana Mohamed, Mohamad Azuwa Ohtani, Bunsho Takashima, Mai TP Chemical technology In this paper, ZnO heterojunction with Ag 2 CO 3 /Ag 2 O mixed phase was synthesized by precipitation and phase transformation routes. The synthesized photocatalysts were characterized by X-ray diffraction (XRD), BET specific surface area, field emission scanning electron microscopy (FESEM), transmission electron microscopy along with energy-dispersive X-ray (TEM-EDX), Fourier transform infrared (FTIR), UV–vis-NIR spectrophotometer to reveal their phase, morphology, purity, and optical properties. The photocatalytic activity of the obtained nanocomposites was measured by the degradation of phenol under visible light irradiation. The results demonstrated that, the heterojunction mixed phase of Ag 2 CO 3 /Ag 2 O over ZnO surfaces has major effect on establishing the performance of the phenol photodegradation process. It can be noted that the Ag 2 O crystal's growth over Ag 2 CO 3 heterojunction on ZnO lattice, effectively facilitate charge transfer and suppress recombination of photogenerated electrons and holes, leading to highest impact phenol degradation. The synthesized photocatalyst displayed excellent properties, showing a potential industrial application for the treatment of phenolic wastewater. Elsevier B.V. 2018-09 Article PeerReviewed Rosman, Nurafiqah and Wan Salleh, Wan Norharyati and Ismail, Ahmad Fauzi and Jaafar, Juhana and Harun, Zawati and Aziz, Farhana and Mohamed, Mohamad Azuwa and Ohtani, Bunsho and Takashima, Mai (2018) Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction. Journal of Photochemistry and Photobiology A: Chemistry, 364 . pp. 602-612. ISSN 1010-6030 http://dx.doi.org/10.1016/j.jphotochem.2018.06.029
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/
topic TP Chemical technology
spellingShingle TP Chemical technology
Rosman, Nurafiqah
Wan Salleh, Wan Norharyati
Ismail, Ahmad Fauzi
Jaafar, Juhana
Harun, Zawati
Aziz, Farhana
Mohamed, Mohamad Azuwa
Ohtani, Bunsho
Takashima, Mai
Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
description In this paper, ZnO heterojunction with Ag 2 CO 3 /Ag 2 O mixed phase was synthesized by precipitation and phase transformation routes. The synthesized photocatalysts were characterized by X-ray diffraction (XRD), BET specific surface area, field emission scanning electron microscopy (FESEM), transmission electron microscopy along with energy-dispersive X-ray (TEM-EDX), Fourier transform infrared (FTIR), UV–vis-NIR spectrophotometer to reveal their phase, morphology, purity, and optical properties. The photocatalytic activity of the obtained nanocomposites was measured by the degradation of phenol under visible light irradiation. The results demonstrated that, the heterojunction mixed phase of Ag 2 CO 3 /Ag 2 O over ZnO surfaces has major effect on establishing the performance of the phenol photodegradation process. It can be noted that the Ag 2 O crystal's growth over Ag 2 CO 3 heterojunction on ZnO lattice, effectively facilitate charge transfer and suppress recombination of photogenerated electrons and holes, leading to highest impact phenol degradation. The synthesized photocatalyst displayed excellent properties, showing a potential industrial application for the treatment of phenolic wastewater.
format Article
author Rosman, Nurafiqah
Wan Salleh, Wan Norharyati
Ismail, Ahmad Fauzi
Jaafar, Juhana
Harun, Zawati
Aziz, Farhana
Mohamed, Mohamad Azuwa
Ohtani, Bunsho
Takashima, Mai
author_facet Rosman, Nurafiqah
Wan Salleh, Wan Norharyati
Ismail, Ahmad Fauzi
Jaafar, Juhana
Harun, Zawati
Aziz, Farhana
Mohamed, Mohamad Azuwa
Ohtani, Bunsho
Takashima, Mai
author_sort Rosman, Nurafiqah
title Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
title_short Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
title_full Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
title_fullStr Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
title_full_unstemmed Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction
title_sort photocatalytic degradation of phenol over visible light active zno/ag2co3/ag2o nanocomposites heterojunction
publisher Elsevier B.V.
publishDate 2018
url http://eprints.utm.my/id/eprint/84628/
http://dx.doi.org/10.1016/j.jphotochem.2018.06.029
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score 13.211869

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