Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4

The current work reports on the degradation of glycerol aqueous solution via photocatalytic-Fenton technique. The CuFe2O4 photocatalyst was synthesized via sol-gel method and its physicochemical properties were characterized. The as-synthesized photocatalyst possessed Brunauer-Emmett-Teller (BET)-sp...

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Main Authors:	Cheng, C. K., Kong, Zi Ying, Khan, Maksudur R.
Format:	Article
Language:	English
Published:	Springer 2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/1/Photocatalytic-Fenton%20Degradation%20of%20Glycerol%20Solution.pdf

id	ump-10464
recordtype	eprints
spelling	ump-104642018-01-11T02:43:19Z http://umpir.ump.edu.my/id/eprint/10464/ Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4 Cheng, C. K. Kong, Zi Ying Khan, Maksudur R. TP Chemical technology The current work reports on the degradation of glycerol aqueous solution via photocatalytic-Fenton technique. The CuFe2O4 photocatalyst was synthesized via sol-gel method and its physicochemical properties were characterized. The as-synthesized photocatalyst possessed Brunauer-Emmett-Teller (BET)-specific surface area of 104 m2/g. The large BET-specific surface area was also corroborated by the field-emission scanning electron microscopy (FESEM) images which showed porous morphology. In addition, the XRD pattern showed that the visible light-active component, CuFe2O4, was successfully formed with band gap energy of 1.58 eV determined from the UV-Vis diffuse reflectance spectroscopy. Significantly, it was determined from the blank run study that the visible light was an integral part of the photoreaction. Without the visible light irradiation, glycerol degradation was low (<4.0 %). In contrast, when visible light was present, the glycerol degradation improved markedly to attain 17.7 % after 4 h of visible light irradiation, even in the absence of CuFe2O4 photocatalyst. This can be attributed to splitting of H2O2 into hydroxyl (●OH) radical. In the presence of CuFe2O4 photocatalyst, the photocatalytic Fenton degradation of glycerol has further enhanced to record nearly 40.0 % degradation at a catalyst loading of 5.0 g/l. This has demonstrated that the CuFe2O4 was capable of generating additional hydroxyl radicals to attack the glycerol molecule. Moreover, this degradation kinetics can be captured by Langmuir-Hinshelwood model from which it was found that the adsorption constant related to H2O2 was significantly weaker compared to the adsorption constant of glycerol. Springer 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10464/1/Photocatalytic-Fenton%20Degradation%20of%20Glycerol%20Solution.pdf Cheng, C. K. and Kong, Zi Ying and Khan, Maksudur R. (2015) Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4. Water, Air and Soil Pollution, 226 (327). pp. 1-12. ISSN 0049-6979 (print); 1573-2932 (online) http://dx.doi.org/10.1007/s11270-015-2592-2 10.1007/s11270-015-2592-2
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, C. K. Kong, Zi Ying Khan, Maksudur R. Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
description	The current work reports on the degradation of glycerol aqueous solution via photocatalytic-Fenton technique. The CuFe2O4 photocatalyst was synthesized via sol-gel method and its physicochemical properties were characterized. The as-synthesized photocatalyst possessed Brunauer-Emmett-Teller (BET)-specific surface area of 104 m2/g. The large BET-specific surface area was also corroborated by the field-emission scanning electron microscopy (FESEM) images which showed porous morphology. In addition, the XRD pattern showed that the visible light-active component, CuFe2O4, was successfully formed with band gap energy of 1.58 eV determined from the UV-Vis diffuse reflectance spectroscopy. Significantly, it was determined from the blank run study that the visible light was an integral part of the photoreaction. Without the visible light irradiation, glycerol degradation was low (<4.0 %). In contrast, when visible light was present, the glycerol degradation improved markedly to attain 17.7 % after 4 h of visible light irradiation, even in the absence of CuFe2O4 photocatalyst. This can be attributed to splitting of H2O2 into hydroxyl (●OH) radical. In the presence of CuFe2O4 photocatalyst, the photocatalytic Fenton degradation of glycerol has further enhanced to record nearly 40.0 % degradation at a catalyst loading of 5.0 g/l. This has demonstrated that the CuFe2O4 was capable of generating additional hydroxyl radicals to attack the glycerol molecule. Moreover, this degradation kinetics can be captured by Langmuir-Hinshelwood model from which it was found that the adsorption constant related to H2O2 was significantly weaker compared to the adsorption constant of glycerol.
format	Article
author	Cheng, C. K. Kong, Zi Ying Khan, Maksudur R.
author_facet	Cheng, C. K. Kong, Zi Ying Khan, Maksudur R.
author_sort	Cheng, C. K.
title	Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
title_short	Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
title_full	Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
title_fullStr	Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
title_full_unstemmed	Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4
title_sort	photocatalytic-fenton degradation of glycerol solution over visible light-responsive cufe2o4
publisher	Springer
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/ http://umpir.ump.edu.my/id/eprint/10464/1/Photocatalytic-Fenton%20Degradation%20of%20Glycerol%20Solution.pdf
first_indexed	2023-09-18T22:10:06Z
last_indexed	2023-09-18T22:10:06Z
_version_	1777414969581633536

Photocatalytic-Fenton Degradation of Glycerol Solution over Visible Light-Responsive CuFe2O4

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