Design novel Ce(MoO<inf>4</inf>)<inf>2</inf>@TiO<inf>2</inf> n–n heterostructures: enhancement photodegradation of toxic dyes

Aghajani, Z; Hosseinpour-Mashkani, SM

Design novel Ce(MoO<inf>4</inf>)<inf>2</inf>@TiO<inf>2</inf> n–n heterostructures: enhancement photodegradation of toxic dyes

Aghajani, Z Hosseinpour-Mashkani, SM

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Journal of Materials Science: Materials in Electronics, 2020, 31, (9), pp. 6593-6606
Issue Date:: 2020-05-01

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Field	Value	Language
dc.contributor.author	Aghajani, Z
dc.contributor.author	Hosseinpour-Mashkani, SM
dc.date.accessioned	2021-05-26T01:28:44Z
dc.date.available	2021-05-26T01:28:44Z
dc.date.issued	2020-05-01
dc.identifier.citation	Journal of Materials Science: Materials in Electronics, 2020, 31, (9), pp. 6593-6606
dc.identifier.issn	0957-4522
dc.identifier.issn	1573-482X
dc.identifier.uri	http://hdl.handle.net/10453/149226
dc.description.abstract	In the research, ultrasonically synthesized Ce(MoO ) nanostructure was coupled with TiO nanoparticles to synthesize molybdate-based n–n heterostructure photocatalyst (Ce(MoO ) @TiO ). Coupling with TiO nanoparticles was performed to reduce electron–hole pairs recombination as well as to increase the UV–Vis light absorption thanks to the interface between Ce(MoO ) and TiO . Methyl orange (MO) and rhodamine B (RhB) as the anionic and cationic dyes were applied to investigate the photocatalytic properties of molybdate-based n–n heterostructure under UV–Vis light irradiation. Also, the impact of various TiO concentrations on the photocatalytic yield was assessed. The photocatalytic yield of Ce(MoO ) @TiO exhibited a 30% enhancement compared to Ce(MoO ) . In the following, the effects of different parameters such as pH of the solution, catalyst dosage, concentrations of dyes, and various inorganic ions (SO , NO , CO , and Cl ) on the degradation reaction were investigated. DRS results demonstrated that the bandgap of Ce(MoO ) @TiO (3.3 eV) nanostructure showed a red shift in comparison with Ce(MoO ) (2.69 eV). Under the optimum degradation conditions, approximately 95 and 93% of methyl orange (MO) and rhodamine B (RhB) were degraded after 50 min under UV–Vis irradiation. 4 2 2 4 2 2 2 4 2 2 2 4 2 2 4 2 4 4 2 2 4 2 2− 3− 3− −
dc.language	en
dc.publisher	Springer Science and Business Media LLC
dc.relation.ispartof	Journal of Materials Science: Materials in Electronics
dc.relation.isbasedon	10.1007/s10854-020-03215-y
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0912 Materials Engineering
dc.subject.classification	Applied Physics
dc.title	Design novel Ce(MoO<inf>4</inf>)<inf>2</inf>@TiO<inf>2</inf> n–n heterostructures: enhancement photodegradation of toxic dyes
dc.type	Journal Article
utslib.citation.volume	31
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0912 Materials Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-05-26T01:28:41Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	31
utslib.citation.issue	9

Abstract:

In the research, ultrasonically synthesized Ce(MoO ) nanostructure was coupled with TiO nanoparticles to synthesize molybdate-based n–n heterostructure photocatalyst (Ce(MoO ) @TiO ). Coupling with TiO nanoparticles was performed to reduce electron–hole pairs recombination as well as to increase the UV–Vis light absorption thanks to the interface between Ce(MoO ) and TiO . Methyl orange (MO) and rhodamine B (RhB) as the anionic and cationic dyes were applied to investigate the photocatalytic properties of molybdate-based n–n heterostructure under UV–Vis light irradiation. Also, the impact of various TiO concentrations on the photocatalytic yield was assessed. The photocatalytic yield of Ce(MoO ) @TiO exhibited a 30% enhancement compared to Ce(MoO ) . In the following, the effects of different parameters such as pH of the solution, catalyst dosage, concentrations of dyes, and various inorganic ions (SO , NO , CO , and Cl ) on the degradation reaction were investigated. DRS results demonstrated that the bandgap of Ce(MoO ) @TiO (3.3 eV) nanostructure showed a red shift in comparison with Ce(MoO ) (2.69 eV). Under the optimum degradation conditions, approximately 95 and 93% of methyl orange (MO) and rhodamine B (RhB) were degraded after 50 min under UV–Vis irradiation. 4 2 2 4 2 2 2 4 2 2 2 4 2 2 4 2 4 4 2 2 4 2 2− 3− 3− −

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http://hdl.handle.net/10453/149226