ZnO-layered double hydroxide@graphitic carbon nitride composite for consecutive adsorption and photodegradation of dyes under UV and visible lights

Zhang, Luhong, Li, Li, Sun, Xiaoming, Liu, Peng, Yang, Dongfang and Zhao, Xiusong (2016) ZnO-layered double hydroxide@graphitic carbon nitride composite for consecutive adsorption and photodegradation of dyes under UV and visible lights. Materials, 9 11: . doi:10.3390/ma9110927


Author Zhang, Luhong
Li, Li
Sun, Xiaoming
Liu, Peng
Yang, Dongfang
Zhao, Xiusong
Title ZnO-layered double hydroxide@graphitic carbon nitride composite for consecutive adsorption and photodegradation of dyes under UV and visible lights
Journal name Materials   Check publisher's open access policy
ISSN 1996-1944
Publication date 2016-11-15
Sub-type Article (original research)
DOI 10.3390/ma9110927
Open Access Status DOI
Volume 9
Issue 11
Total pages 16
Place of publication Basel, Switzerland
Publisher M D P I AG
Collection year 2017
Language eng
Formatted abstract
In this work, a ZnO-layered double hydroxide@graphitic carbon nitride composite (ZnO-LDH@C3N4) was synthesized via co-precipitation method with solvothermal treatment. The structure and morphology of ZnO-LDH@C3N4 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 ZnO-LDH@C3N4 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 ZnO-LDH@C3N4 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.
Keyword Adsorption
Graphitic carbon nitride
Layered double hydroxide
Photocatalysis
Zinc oxide
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
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