NDLI: One-step synthesis of recycled 3D CeVO<sub>4</sub>/rGO composite aerogels for efficient degradation of organic dyes

Content Provider	Royal Society of Chemistry (RSC)
Author	Ma, T. D. Liu, Q. Q. Fan, C. Y. Tang, H. Shen, J. Y.
Copyright Year	2016
Abstract	Three dimensional (3D) CeVO4/rGO porous aerogels were fabricated by a one-pot hydrothermal method. The as-prepared aerogels were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-visible spectroscopy, electrochemical impedance spectroscopy (EIS) and fluorescence spectroscopy (FL) techniques. The results indicated that these aerogels showed a 3D architecture consisting of crosslinked rGO sheets in which CeVO4 particles were fully embedded. The specific surface area of the hybrid aerogel (143.2 m2 g−1) was demonstrated to be 24.3 times higher than that of bare CeVO4. The photocatalytic activities of the aerogels were investigated through the degradation of methylene blue under visible light irradiation. In comparison with the bare CeVO4 particles, the CeVO4/rGO aerogels showed significantly improved photocatalytic efficiency. The enhanced photocatalytic mechanism was mainly due to the synergistic effect between the larger surface area, porous structure of the aerogel and the effective separation of the photo-generated electron–hole pairs. The 3D block structure of lightweight CeVO4/rGO porous aerogels could not only contribute to their easy separation from the dispersion after photocatalysis, and also to their reuse for practical application.
Starting Page	85779
Ending Page	85786
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	6
Issue Number	89
Journal	RSC Advances
DOI	10.1039/c6ra18013b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Aerogel Dispersion relation Photocatalysis Fluorescence Specific surface area Photoemission spectroscopy Raman spectroscopy Scanning electron microscope Three-dimensional space Methylene blue X-ray crystallography Transmission electron microscopy Ultraviolet\u2013visible spectroscopy Hydrothermal circulation Electrochemistry Raman X-ray photoelectron spectroscopy Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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