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Open AccessArticle

ZnO-Layered Double [email protected] Carbon Nitride Composite for Consecutive Adsorption and Photodegradation of Dyes under UV and Visible Lights

1
School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
2
Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Carla Renata Arciola
Materials 2016, 9(11), 927; https://doi.org/10.3390/ma9110927
Received: 13 August 2016 / Revised: 1 October 2016 / Accepted: 10 November 2016 / Published: 15 November 2016
(This article belongs to the Special Issue Porous Materials for Water Technology)
In this work, a ZnO-layered double [email protected] carbon nitride composite ([email protected]3N4) was synthesized via co-precipitation method with solvothermal treatment. The structure and morphology of [email protected]3N4 composite were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopes/transmission electron microscopes (SEM/TEM), N2 adsorption/desorption, ultraviolet visible diffuse reflectance spectroscopy (UV-Vis-DRS), photoluminescence spectrometer (PL) and electrochemical impedance spectroscopy (EIS). The adsorption and photocatalytic properties of [email protected]3N4 composite towards the organic dyes: Orange II sodium salt (OrgII, an anionic azo dye) and methylene blue (MB, a cationic azo dye) were investigated. Compared to ZnO-LDH and g-C3N4, the [email protected]3N4 composite displayed an excellent performance in both adsorption and photocatalytic degradation of the organic dyes. Moreover, a combination of ZnO-LDH and g-C3N4 significantly improved the photocatalytic performance of ZnO-LDH and g-C3N4 under visible-light irradiation. The adsorption and photocatalytic mechanism were also investigated. View Full-Text
Keywords: zinc oxide; layered double hydroxide; graphitic carbon nitride; adsorption; photocatalysis zinc oxide; layered double hydroxide; graphitic carbon nitride; adsorption; photocatalysis
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Zhang, L.; Li, L.; Sun, X.; Liu, P.; Yang, D.; Zhao, X. ZnO-Layered Double [email protected] Carbon Nitride Composite for Consecutive Adsorption and Photodegradation of Dyes under UV and Visible Lights. Materials 2016, 9, 927.

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