Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation

Copper oxide doped zinc oxide photocatalyst was synthesized by sonochemistry method using Zn(NO3)2.6H2O and Cu(NO3)2.3H2O as precursor and two different precipitation agents NaOH and NH4OH. The precipitate was washed, dried and calcined at 400°C for 3 hr. The product was characterized by X-ray diffr...

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Main Author:	Jefri, Siti Nur Surhayani
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Photodegradation Ultraviolet radiation
Online Access:	http://psasir.upm.edu.my/id/eprint/76574/1/FS%202018%2047%20-%20IR.pdf
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spelling	my-upm-ir.765742020-01-30T07:22:32Z Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation 2017-10 Jefri, Siti Nur Surhayani Copper oxide doped zinc oxide photocatalyst was synthesized by sonochemistry method using Zn(NO3)2.6H2O and Cu(NO3)2.3H2O as precursor and two different precipitation agents NaOH and NH4OH. The precipitate was washed, dried and calcined at 400°C for 3 hr. The product was characterized by X-ray diffractometry (XRD), UV- Vis NIR Spectrophotometer, field emission scanning electron microscopy (FE-SEM), Transmission Electron Microscope (TEM) and surface area (BET method) . XRD result showed the sonicated ZnO produced by NaOH as precipitation agent has bigger crystallite size, 61.1 nm and the surface area was 4.43 nm2/g . After doping with CuO, the crystallite size decreased to 19.4 nm and the surface area increased to 8.2 nm2/g. The band gap energy of ZnO and CuO doped ZnO was 3.3 eV respectively. Majority of the particles were about 13.0 nm as obtained from the particle size distribution histrogram After doping with CuO, the particle size decreased to 10.8 nm. The efficiency of the photocatalyst was examined by photodegrading Methylene Orange (MO). The effects of photodegradation parameters such as photocatalyst mass loading, MO initial concentration and MO initial pH examined. The experiments were evaluated by photodegradation of methyl orange under UV light irradiation for 4 hours. Photocatalytic activities showed that the highest removal was when the 0.6g of 0.8% CuO doped ZnO used in 5ppm MO with pH 6.8 which is the percentage removal was 54.1%. Experimental design methodology also applied using response surface methodology (RSM). The multivariate experimental design was employed to develop a quadratic model as a functional relationship between the mg/g per of MO and three experimental factors (mass loading, MO initial concentration and MO initial pH). The highest removal of MO approached 12.8 mg/g when the 0.2g of 0.8% CuO doped ZnO used in 5ppm MO with pH 5. Photodegradation Ultraviolet radiation 2017-10 Thesis http://psasir.upm.edu.my/id/eprint/76574/ http://psasir.upm.edu.my/id/eprint/76574/1/FS%202018%2047%20-%20IR.pdf text en public masters Universiti Putra Malaysia Photodegradation Ultraviolet radiation
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Photodegradation Ultraviolet radiation
spellingShingle	Photodegradation Ultraviolet radiation Jefri, Siti Nur Surhayani Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
description	Copper oxide doped zinc oxide photocatalyst was synthesized by sonochemistry method using Zn(NO3)2.6H2O and Cu(NO3)2.3H2O as precursor and two different precipitation agents NaOH and NH4OH. The precipitate was washed, dried and calcined at 400°C for 3 hr. The product was characterized by X-ray diffractometry (XRD), UV- Vis NIR Spectrophotometer, field emission scanning electron microscopy (FE-SEM), Transmission Electron Microscope (TEM) and surface area (BET method) . XRD result showed the sonicated ZnO produced by NaOH as precipitation agent has bigger crystallite size, 61.1 nm and the surface area was 4.43 nm2/g . After doping with CuO, the crystallite size decreased to 19.4 nm and the surface area increased to 8.2 nm2/g. The band gap energy of ZnO and CuO doped ZnO was 3.3 eV respectively. Majority of the particles were about 13.0 nm as obtained from the particle size distribution histrogram After doping with CuO, the particle size decreased to 10.8 nm. The efficiency of the photocatalyst was examined by photodegrading Methylene Orange (MO). The effects of photodegradation parameters such as photocatalyst mass loading, MO initial concentration and MO initial pH examined. The experiments were evaluated by photodegradation of methyl orange under UV light irradiation for 4 hours. Photocatalytic activities showed that the highest removal was when the 0.6g of 0.8% CuO doped ZnO used in 5ppm MO with pH 6.8 which is the percentage removal was 54.1%. Experimental design methodology also applied using response surface methodology (RSM). The multivariate experimental design was employed to develop a quadratic model as a functional relationship between the mg/g per of MO and three experimental factors (mass loading, MO initial concentration and MO initial pH). The highest removal of MO approached 12.8 mg/g when the 0.2g of 0.8% CuO doped ZnO used in 5ppm MO with pH 5.
format	Thesis
qualification_level	Master's degree
author	Jefri, Siti Nur Surhayani
author_facet	Jefri, Siti Nur Surhayani
author_sort	Jefri, Siti Nur Surhayani
title	Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
title_short	Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
title_full	Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
title_fullStr	Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
title_full_unstemmed	Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
title_sort	photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation
granting_institution	Universiti Putra Malaysia
publishDate	2017
url	http://psasir.upm.edu.my/id/eprint/76574/1/FS%202018%2047%20-%20IR.pdf
_version_	1747813171340509184

Photodegradation of methyl orange using copper oxide doped zinc oxide under ultraviolet light irradiation

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