Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst

In the current work, the photocatalytic treatment of palm oil mill effluent over tungsten oxides photocatalyst under ultraviolet-irradiation was evaluated. Characterization of fresh and used tungsten oxides photocatalyst was accomplished via X-Ray Diffraction, Scanning Electron Microscopy with Energ...

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Main Authors:	Cheng, Yoke Wang, Chang, Ying Shi, Ng, Kim Hoong, Wu, Ta Yeong, Cheng, C. K.
Format:	Article
Language:	English
Published:	Elsevier 2017
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/7/fkksa-2017-cheng-Photocatalytic%20restoration%20of%20liquid1.pdf

id	ump-17981
recordtype	eprints
spelling	ump-179812018-01-10T02:30:23Z http://umpir.ump.edu.my/id/eprint/17981/ Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst Cheng, Yoke Wang Chang, Ying Shi Ng, Kim Hoong Wu, Ta Yeong Cheng, C. K. TP Chemical technology In the current work, the photocatalytic treatment of palm oil mill effluent over tungsten oxides photocatalyst under ultraviolet-irradiation was evaluated. Characterization of fresh and used tungsten oxides photocatalyst was accomplished via X-Ray Diffraction, Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis, Ultraviolet–Visible Light Diffuse Reflectance Spectroscopy, and Fourier Transformed-Infrared Spectroscopy. Photocatalytic treatment of palm oil mill effluent was conducted to determine the effects of catalyst loading, longevity, and recyclability of the tungsten oxides photocatalyst, as well as the effect of pH alteration on palm oil mill effluent. During the photocatalytic reaction, the collected liquid sample was tested for chemical oxygen demand, pH, and colour intensity while the gaseous sample was analyzed via gas chromatography. The optimum catalyst loading was 0.5 g/L, corresponds to highest photocatalytic degradation (51.15%) and decolourization (96.21%). The pH alteration on palm oil mill effluent has negligible effect on its photocatalytic degradation with UV/WO3 system. For longevity study, the optimum reaction time was 16 h, which achieved 84.70% photocatalytic degradation and 98.28% photocatalytic decolourization. From the recyclability study, it can be concluded that the tungsten oxides photocatalyst is suitable for photocatalytic decolourization of palm oil mill effluent, but not suitable for photocatalytic degradation. In addition, analysis of the gaseous product showed that the photocatalytic treatment has successfully degraded the organic pollutants in the liquid effluent into methane and carbon dioxide. Elsevier 2017-09-20 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17981/7/fkksa-2017-cheng-Photocatalytic%20restoration%20of%20liquid1.pdf Cheng, Yoke Wang and Chang, Ying Shi and Ng, Kim Hoong and Wu, Ta Yeong and Cheng, C. K. (2017) Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst. Journal of Cleaner Production, 162. pp. 205-219. ISSN 0959-6526 (print), 1879-1786 (online) https://doi.org/10.1016/j.jclepro.2017.06.023 doi: 10.1016/j.jclepro.2017.06.023
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Cheng, Yoke Wang Chang, Ying Shi Ng, Kim Hoong Wu, Ta Yeong Cheng, C. K. Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
description	In the current work, the photocatalytic treatment of palm oil mill effluent over tungsten oxides photocatalyst under ultraviolet-irradiation was evaluated. Characterization of fresh and used tungsten oxides photocatalyst was accomplished via X-Ray Diffraction, Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis, Ultraviolet–Visible Light Diffuse Reflectance Spectroscopy, and Fourier Transformed-Infrared Spectroscopy. Photocatalytic treatment of palm oil mill effluent was conducted to determine the effects of catalyst loading, longevity, and recyclability of the tungsten oxides photocatalyst, as well as the effect of pH alteration on palm oil mill effluent. During the photocatalytic reaction, the collected liquid sample was tested for chemical oxygen demand, pH, and colour intensity while the gaseous sample was analyzed via gas chromatography. The optimum catalyst loading was 0.5 g/L, corresponds to highest photocatalytic degradation (51.15%) and decolourization (96.21%). The pH alteration on palm oil mill effluent has negligible effect on its photocatalytic degradation with UV/WO3 system. For longevity study, the optimum reaction time was 16 h, which achieved 84.70% photocatalytic degradation and 98.28% photocatalytic decolourization. From the recyclability study, it can be concluded that the tungsten oxides photocatalyst is suitable for photocatalytic decolourization of palm oil mill effluent, but not suitable for photocatalytic degradation. In addition, analysis of the gaseous product showed that the photocatalytic treatment has successfully degraded the organic pollutants in the liquid effluent into methane and carbon dioxide.
format	Article
author	Cheng, Yoke Wang Chang, Ying Shi Ng, Kim Hoong Wu, Ta Yeong Cheng, C. K.
author_facet	Cheng, Yoke Wang Chang, Ying Shi Ng, Kim Hoong Wu, Ta Yeong Cheng, C. K.
author_sort	Cheng, Yoke Wang
title	Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
title_short	Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
title_full	Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
title_fullStr	Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
title_full_unstemmed	Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst
title_sort	photocatalytic restoration of liquid effluent from oil palm agroindustry in malaysia using tungsten oxides catalyst
publisher	Elsevier
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/ http://umpir.ump.edu.my/id/eprint/17981/7/fkksa-2017-cheng-Photocatalytic%20restoration%20of%20liquid1.pdf
first_indexed	2023-09-18T22:25:10Z
last_indexed	2023-09-18T22:25:10Z
_version_	1777415917811007488

Photocatalytic Restoration of Liquid Effluent from Oil Palm Agroindustry in Malaysia using Tungsten Oxides Catalyst

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