ZnO micro-flowers assembled on reduced graphene sheets with high photocatalytic activity for removal of pollutants

Pant, HR; Park, CH; Pokharel, P; Tijing, LD; Lee, DS; Kim, CS

ZnO micro-flowers assembled on reduced graphene sheets with high photocatalytic activity for removal of pollutants

Pant, HR Park, CH Pokharel, P Tijing, LD

Lee, DS Kim, CS

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Publication Type:: Journal Article
Citation:: Powder Technology, 2013, 235 pp. 853 - 858
Issue Date:: 2013-02-01

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Field	Value	Language
dc.contributor.author	Pant, HR	en_US
dc.contributor.author	Park, CH	en_US
dc.contributor.author	Pokharel, P	en_US
dc.contributor.author	Tijing, LD https://orcid.org/0000-0001-9398-6355	en_US
dc.contributor.author	Lee, DS	en_US
dc.contributor.author	Kim, CS	en_US
dc.date.issued	2013-02-01	en_US
dc.identifier.citation	Powder Technology, 2013, 235 pp. 853 - 858	en_US
dc.identifier.issn	0032-5910	en_US
dc.identifier.uri	http://hdl.handle.net/10453/27896
dc.description.abstract	In this paper, a simple and efficient strategy was developed for preparing flower-shaped ZnO doped reduced graphene oxide (RGO) composite material by simultaneous crystal growth (of ZnO) and reduction (of graphene oxide) using hydrothermal process. Several analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR spectroscopy, Raman spectroscopy, and photoluminescence spectroscopy have been used to characterize the resulting ZnO/RGO photocatalyst. Results showed that highly crystalline ZnO nano-flowers were effectively doped on the surface of RGO sheets. The unique properties of RGO sheets not only provide the decreased rate of electron-hole separation in ZnO but also prevent from the loss of photocatalyst during recovery due to the fixed attachment of ZnO NPs on the surface of high aspect ratio graphene sheets. Therefore, as-synthesized composite is an economically and environmentally friendly photocatalyst. © 2012 Elsevier B.V.	en_US
dc.relation.ispartof	Powder Technology	en_US
dc.relation.isbasedon	10.1016/j.powtec.2012.11.050	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	ZnO micro-flowers assembled on reduced graphene sheets with high photocatalytic activity for removal of pollutants	en_US
dc.type	Journal Article
utslib.citation.volume	235	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	235	en_US

Abstract:

In this paper, a simple and efficient strategy was developed for preparing flower-shaped ZnO doped reduced graphene oxide (RGO) composite material by simultaneous crystal growth (of ZnO) and reduction (of graphene oxide) using hydrothermal process. Several analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR spectroscopy, Raman spectroscopy, and photoluminescence spectroscopy have been used to characterize the resulting ZnO/RGO photocatalyst. Results showed that highly crystalline ZnO nano-flowers were effectively doped on the surface of RGO sheets. The unique properties of RGO sheets not only provide the decreased rate of electron-hole separation in ZnO but also prevent from the loss of photocatalyst during recovery due to the fixed attachment of ZnO NPs on the surface of high aspect ratio graphene sheets. Therefore, as-synthesized composite is an economically and environmentally friendly photocatalyst. © 2012 Elsevier B.V.

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http://hdl.handle.net/10453/27896