Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst

The current work reports the use of titania based photocatalysts for the photo-treatment of palm oil mill effluent collected from Felda Lepar Hilir 3, a local source. Different metal loadings of copper viz. 2wt%, 5wt%, 10wt%, 15wt%, 20wt% and 25wt% were doped onto titania employing wet impregnation...

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Main Author:	Ng, Kim Hoong
Format:	Undergraduates Project Papers
Language:	English
Published:	2013
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/9188/ http://umpir.ump.edu.my/id/eprint/9188/ http://umpir.ump.edu.my/id/eprint/9188/1/cd8562.pdf

id	ump-9188
recordtype	eprints
spelling	ump-91882015-10-16T00:04:30Z http://umpir.ump.edu.my/id/eprint/9188/ Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst Ng, Kim Hoong QD Chemistry The current work reports the use of titania based photocatalysts for the photo-treatment of palm oil mill effluent collected from Felda Lepar Hilir 3, a local source. Different metal loadings of copper viz. 2wt%, 5wt%, 10wt%, 15wt%, 20wt% and 25wt% were doped onto titania employing wet impregnation method. The synthesized catalysts were subjected to physicochemical characterization. Gas pycnometer density measurements revealed that the actual density of catalysts were lower than theoretical density due to the porous structure as proven by the subsequent liquid N2 physisorption. In addition, X-ray diffraction pattern showed formation of CuO with crystallite size ranging from 41.8 to 49.1 nm upon calcination. Significantly, liquid N2 physisorption showed that the BET specific surface area of catalysts prepared decreased with wt% of Cu probably due to pore blockage Moreover, 5wt% Cu/TiO2 exhibits the largest pore volume, which is 0.049 cm3/g for both adsorption and desorption volume. In the term of pore size, 20wt% of Cu/TiO2 has the largest adsorption pore size, which is 23.39 nm while 5wt% of Cu/TiO2 has the largest desorption pore size, which is 19.83 nm. Based on the UV-irradiated photoreaction results, 20wt% Cu/TiO2 yielded the highest organic degradability (conversion) among all the synthesized catalysts. Overall, 27.0% conversion was achieved within 1 h of photoreaction. Based on the integral method, it seems that the POME photo-reaction followed the 2nd-order reaction. Moreover, 20 wt% Cu/TiO2 exhibited the highest specific reaction constant at 2.60×10-5 (ppm.min)-1. Besides, an optimum catalyst loading were also discovered in current project. For 20wt% Cu/TiO2, the optimum catalyst loading is 0.83g/L of POME solution. Finally, a longevity test was conducted and it was found that more than 40% of the organic contaminant was decomposed after 7 h of UV-irradiation. Moreover, CO and CO2 were detected in the gas products from GC analysis. As conclusion, phototreatment for POME shows positive results in current project and is suitable to replace the existing traditional POME method for better efficiency 2013-12 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9188/1/cd8562.pdf Ng, Kim Hoong (2013) Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:84684&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Ng, Kim Hoong Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
description	The current work reports the use of titania based photocatalysts for the photo-treatment of palm oil mill effluent collected from Felda Lepar Hilir 3, a local source. Different metal loadings of copper viz. 2wt%, 5wt%, 10wt%, 15wt%, 20wt% and 25wt% were doped onto titania employing wet impregnation method. The synthesized catalysts were subjected to physicochemical characterization. Gas pycnometer density measurements revealed that the actual density of catalysts were lower than theoretical density due to the porous structure as proven by the subsequent liquid N2 physisorption. In addition, X-ray diffraction pattern showed formation of CuO with crystallite size ranging from 41.8 to 49.1 nm upon calcination. Significantly, liquid N2 physisorption showed that the BET specific surface area of catalysts prepared decreased with wt% of Cu probably due to pore blockage Moreover, 5wt% Cu/TiO2 exhibits the largest pore volume, which is 0.049 cm3/g for both adsorption and desorption volume. In the term of pore size, 20wt% of Cu/TiO2 has the largest adsorption pore size, which is 23.39 nm while 5wt% of Cu/TiO2 has the largest desorption pore size, which is 19.83 nm. Based on the UV-irradiated photoreaction results, 20wt% Cu/TiO2 yielded the highest organic degradability (conversion) among all the synthesized catalysts. Overall, 27.0% conversion was achieved within 1 h of photoreaction. Based on the integral method, it seems that the POME photo-reaction followed the 2nd-order reaction. Moreover, 20 wt% Cu/TiO2 exhibited the highest specific reaction constant at 2.60×10-5 (ppm.min)-1. Besides, an optimum catalyst loading were also discovered in current project. For 20wt% Cu/TiO2, the optimum catalyst loading is 0.83g/L of POME solution. Finally, a longevity test was conducted and it was found that more than 40% of the organic contaminant was decomposed after 7 h of UV-irradiation. Moreover, CO and CO2 were detected in the gas products from GC analysis. As conclusion, phototreatment for POME shows positive results in current project and is suitable to replace the existing traditional POME method for better efficiency
format	Undergraduates Project Papers
author	Ng, Kim Hoong
author_facet	Ng, Kim Hoong
author_sort	Ng, Kim Hoong
title	Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
title_short	Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
title_full	Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
title_fullStr	Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
title_full_unstemmed	Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
title_sort	photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/9188/ http://umpir.ump.edu.my/id/eprint/9188/ http://umpir.ump.edu.my/id/eprint/9188/1/cd8562.pdf
first_indexed	2023-09-18T22:07:30Z
last_indexed	2023-09-18T22:07:30Z
_version_	1777414806268018688

Photo-treatment of palm oil mills effluent (pome) over cu/tio2 photocatalyst

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