Cover Image

Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature

The decolorization of Orange II was studied under visible light using bimetallic Cu–Ni/TiO2 prepared via precipitation method. Photocatalysts with different Cu:Ni mass compositions were prepared and the effect of calcination temperatures on the Orange II removal was investigated. The raw photocata...

Full description

Saved in:
Bibliographic Details
Main Authors: Riaz, Nadia, Chong, Fai Kait, Dutta, Binay K., Man, Zakaria, Khan, Saqib, Nurlaela, Ela
Format: Citation Index Journal
Published: 2012
Subjects:
QD Chemistry
TP Chemical technology
Online Access:http://eprints.utp.edu.my/9863/1/Chemical%20Engineering%20Journal%20vol.%20185-186%2Cp%20108-119.pdf
http://eprints.utp.edu.my/9863/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.9863
record_format eprints
spelling my.utp.eprints.98632017-03-20T01:59:31Z Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature Riaz, Nadia Chong, Fai Kait Dutta, Binay K. Man, Zakaria Khan, Saqib Nurlaela, Ela QD Chemistry TP Chemical technology The decolorization of Orange II was studied under visible light using bimetallic Cu–Ni/TiO2 prepared via precipitation method. Photocatalysts with different Cu:Ni mass compositions were prepared and the effect of calcination temperatures on the Orange II removal was investigated. The raw photocatalysts were activated by calcination at three different temperatures (180 ◦C, 200 ◦C and 300 ◦C) for 1 h duration. Photocatalysts were characterized using thermogravimetric analysis, Fourier-transformed infrared spectroscopy, powder X-ray diffraction and field-emission scanning electron microscopy, high resolution transmission electron microscopy, diffuse reflectance UV–Vis spectroscopy, temperature programed reduction studies and surface area analysis employing Brunauer–Emmet–Teller method. The photocatalytic degradation of Orange II was performed under the irradiation of visible light (500 W halogen lamp) at pH 6.8. The extent of Orange II degradation with initial concentration of 50 ppm was monitored using UV–Vis spectroscopy and at the end of the reaction, total organic carbon analysis (TOC) was conducted. Results from UV–Vis spectroscopy showed that high percentage of Orange II removal was achieved for Cu–Ni/TiO2 photocatalysts calcined at 180 ◦C and 200 ◦C compared to 300 ◦C. In addition, these photocatalysts also displayed lower TOC values as compared to the photocatalyst calcined at 300 ◦C. The best performing Cu–Ni/TiO2 photocatalyst has 9:1 Cu:Ni mass composition and calcined at 180 ◦C giving 100% Orange II removal with 16.1 ppm TOC value. Although the results from UV–Vis spectroscopy showed 100% Orange II removal, TOC analysis indicated the presence of organic compounds derived from the dye degradation process. 2012-03-15 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/9863/1/Chemical%20Engineering%20Journal%20vol.%20185-186%2Cp%20108-119.pdf Riaz, Nadia and Chong, Fai Kait and Dutta, Binay K. and Man, Zakaria and Khan, Saqib and Nurlaela, Ela (2012) Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature. [Citation Index Journal] http://eprints.utp.edu.my/9863/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic QD Chemistry
TP Chemical technology
spellingShingle QD Chemistry
TP Chemical technology
Riaz, Nadia
Chong, Fai Kait
Dutta, Binay K.
Man, Zakaria
Khan, Saqib
Nurlaela, Ela
Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
description The decolorization of Orange II was studied under visible light using bimetallic Cu–Ni/TiO2 prepared via precipitation method. Photocatalysts with different Cu:Ni mass compositions were prepared and the effect of calcination temperatures on the Orange II removal was investigated. The raw photocatalysts were activated by calcination at three different temperatures (180 ◦C, 200 ◦C and 300 ◦C) for 1 h duration. Photocatalysts were characterized using thermogravimetric analysis, Fourier-transformed infrared spectroscopy, powder X-ray diffraction and field-emission scanning electron microscopy, high resolution transmission electron microscopy, diffuse reflectance UV–Vis spectroscopy, temperature programed reduction studies and surface area analysis employing Brunauer–Emmet–Teller method. The photocatalytic degradation of Orange II was performed under the irradiation of visible light (500 W halogen lamp) at pH 6.8. The extent of Orange II degradation with initial concentration of 50 ppm was monitored using UV–Vis spectroscopy and at the end of the reaction, total organic carbon analysis (TOC) was conducted. Results from UV–Vis spectroscopy showed that high percentage of Orange II removal was achieved for Cu–Ni/TiO2 photocatalysts calcined at 180 ◦C and 200 ◦C compared to 300 ◦C. In addition, these photocatalysts also displayed lower TOC values as compared to the photocatalyst calcined at 300 ◦C. The best performing Cu–Ni/TiO2 photocatalyst has 9:1 Cu:Ni mass composition and calcined at 180 ◦C giving 100% Orange II removal with 16.1 ppm TOC value. Although the results from UV–Vis spectroscopy showed 100% Orange II removal, TOC analysis indicated the presence of organic compounds derived from the dye degradation process.
format Citation Index Journal
author Riaz, Nadia
Chong, Fai Kait
Dutta, Binay K.
Man, Zakaria
Khan, Saqib
Nurlaela, Ela
author_facet Riaz, Nadia
Chong, Fai Kait
Dutta, Binay K.
Man, Zakaria
Khan, Saqib
Nurlaela, Ela
author_sort Riaz, Nadia
title Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
title_short Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
title_full Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
title_fullStr Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
title_full_unstemmed Photodegradation of Orange II under visible light using Cu–Ni/TiO2: Effect of calcination temperature
title_sort photodegradation of orange ii under visible light using cu–ni/tio2: effect of calcination temperature
publishDate 2012
url http://eprints.utp.edu.my/9863/1/Chemical%20Engineering%20Journal%20vol.%20185-186%2Cp%20108-119.pdf
http://eprints.utp.edu.my/9863/
_version_ 1738655796498006016
score 13.211869

Similar Items