Facile fabrication of graphene@Fe-Ti binary oxide nanocomposite from ilmenite ore: An effective photocatalyst for dye degradation under visible light irradiation

Truong, NT; Thi, HPN; Ninh, HD; Phung, XT; Van Tran, C; Nguyen, TT; Pham, TD; Dang, TD; Chang, SW; Rene, ER; Ngo, HH; Nguyen, DD; La, DD

Facile fabrication of graphene@Fe-Ti binary oxide nanocomposite from ilmenite ore: An effective photocatalyst for dye degradation under visible light irradiation

Truong, NT Thi, HPN Ninh, HD Phung, XT Van Tran, C Nguyen, TT Pham, TD Dang, TD Chang, SW Rene, ER Ngo, HH Nguyen, DD La, DD

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Water Process Engineering, 2020, 37, pp. 101474-101474
Issue Date:: 2020-10-01

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Field	Value	Language
dc.contributor.author	Truong, NT
dc.contributor.author	Thi, HPN
dc.contributor.author	Ninh, HD
dc.contributor.author	Phung, XT
dc.contributor.author	Van Tran, C
dc.contributor.author	Nguyen, TT
dc.contributor.author	Pham, TD
dc.contributor.author	Dang, TD
dc.contributor.author	Chang, SW
dc.contributor.author	Rene, ER
dc.contributor.author	Ngo, HH
dc.contributor.author	Nguyen, DD
dc.contributor.author	La, DD
dc.date.accessioned	2020-07-24T08:16:04Z
dc.date.available	2020-07-24T08:16:04Z
dc.date.issued	2020-10-01
dc.identifier.citation	Journal of Water Process Engineering, 2020, 37, pp. 101474-101474
dc.identifier.issn	2214-7144
dc.identifier.uri	http://hdl.handle.net/10453/141863
dc.description.abstract	© 2020 Elsevier Ltd Photocatalysis is an effective treatment technique for the removal of toxic pollutants present in water and wastewater. In this study, graphene@Fe-Ti binary oxide composites was prepared using a hydrothermal method and characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and Brunauer-Emmett-Teller surface area analysis. The prepared composite exhibited even distribution of the Fe-Ti binary oxide on the surface of graphene, with an average diameter of 16.4 nm and a surface area of 133.7 m2/g. The optical property was evaluated and the band gap was calculated to be 2.867 eV using solid-state UV–vis spectroscopy and the [F(R)hν]1/2 plot. Lab-scale experiments were performed to evaluate the performance of graphene@Fe-Ti binary oxides to remove methyl blue (i.e. a dye) from wastewater. It was observed that the graphene loading had a significant effect on the photocatalytic activity of the composite and a composite with 20 % graphene showed the highest photocatalytic activity, with 100 % removal of the dye, after 20 min of irradiation time and a degradation rate constant of 0.213 min−1. Besides, the possible photocatalytic dye degradation mechanism using graphene@Fe-Ti binary oxide composite has also been proposed.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2020.101474
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Facile fabrication of graphene@Fe-Ti binary oxide nanocomposite from ilmenite ore: An effective photocatalyst for dye degradation under visible light irradiation
dc.type	Journal Article
utslib.citation.volume	37
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2022-10-01T00:00:00+1000Z
dc.date.updated	2020-07-24T08:15:59Z
pubs.publication-status	Accepted
pubs.volume	37

Abstract:

© 2020 Elsevier Ltd Photocatalysis is an effective treatment technique for the removal of toxic pollutants present in water and wastewater. In this study, graphene@Fe-Ti binary oxide composites was prepared using a hydrothermal method and characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and Brunauer-Emmett-Teller surface area analysis. The prepared composite exhibited even distribution of the Fe-Ti binary oxide on the surface of graphene, with an average diameter of 16.4 nm and a surface area of 133.7 m2/g. The optical property was evaluated and the band gap was calculated to be 2.867 eV using solid-state UV–vis spectroscopy and the [F(R)hν]1/2 plot. Lab-scale experiments were performed to evaluate the performance of graphene@Fe-Ti binary oxides to remove methyl blue (i.e. a dye) from wastewater. It was observed that the graphene loading had a significant effect on the photocatalytic activity of the composite and a composite with 20 % graphene showed the highest photocatalytic activity, with 100 % removal of the dye, after 20 min of irradiation time and a degradation rate constant of 0.213 min−1. Besides, the possible photocatalytic dye degradation mechanism using graphene@Fe-Ti binary oxide composite has also been proposed.

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http://hdl.handle.net/10453/141863