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Title: High-efficiency removal of rhodamine B dye in water using g-C3N4 and TiO2 co-hybridized 3D graphene aerogel composites
Authors: Zhang, JJ
Fang, SS
Mei, JY
Zheng, GP 
Zheng, XC
Guan, XX
Keywords: Adsorption
g-C3N4-TiO2-graphene aerogel
Rhodamine B
Visible light
Issue Date: 2018
Publisher: Elsevier B.V.
Source: Separation and purification technology, 2018, v. 194, p. 96-103 How to cite?
Journal: Separation and purification technology 
Abstract: The graphitic carbon nitride-titanium dioxide-graphene aerogel (g-C3N4-TiO2-GA) composites were facilely assembled by a hydrothermal approach combined with freeze drying. The adsorptivity for rhodamine B (RhB, 20.0 mg L−1, 25 mL) within 1 h over 5.0 mg of the composites was as high as 96.5% in dark and could be up to 98.4% under visible light irradiation. Furthermore, the resulting composites also displayed satisfactory cyclic stability and the removal efficiency could be 75.6% even after four cycles of removal. In addition, a photocatalytic mechanism was proposed for the composite. The result demonstrated that the g-C3N4-TiO2-GA composites could be effectively used for the elimination of organic dyes under visible light irradiation because of their unique 3D hierarchical porous structure and the synergistic effect among the components.
ISSN: 1383-5866
EISSN: 1873-3794
DOI: 10.1016/j.seppur.2017.11.035
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