Ultrasonic-Assisted Synthesis of 2D α-Fe2O3@g-C3N4 Composite with Excellent Visible Light Photocatalytic Activity

Huoli Zhang; Changxin Zhu; Jianliang Cao; Qingjie Tang; Man Li; Peng Kang; Changliang Shi; Mingjie Ma

doi:10.3390/catal8100457

Catalysts (Oct 2018)

Ultrasonic-Assisted Synthesis of 2D α-Fe2O3@g-C3N4 Composite with Excellent Visible Light Photocatalytic Activity

Huoli Zhang,
Changxin Zhu,
Jianliang Cao,
Qingjie Tang,
Man Li,
Peng Kang,
Changliang Shi,
Mingjie Ma

Affiliations

Huoli Zhang: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Changxin Zhu: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Jianliang Cao: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Qingjie Tang: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Man Li: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Peng Kang: College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Changliang Shi: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China
Mingjie Ma: School of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, China

DOI: https://doi.org/10.3390/catal8100457
Journal volume & issue: Vol. 8, no. 10
p. 457

Abstract

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In this study, α-Fe2O3@g-C3N4 photocatalyst was synthesized using an ultrasonic assisted self-assembly preparation method. The α-Fe2O3@g-C3N4 photocatalyst had a stronger optical absorption in the visible light region than pure graphitic carbon nitride (g-C3N4). The Z-Scheme heterojunction between α-Fe2O3 and g-C3N4 significantly inhibited the recombination of electrons and holes. The photocatalytic performances of α-Fe2O3@g-C3N4 photocatalyst were excellent in degradation of Rhodamine B (RhB) under visible light irradiation. The results indicated that 5 wt.% α-Fe2O3/g-C3N4 had the optimal photocatalytic activity because two-dimension (2D) α-Fe2O3 nanosheets can be well-dispersed on the surface of g-C3N4 layers by ultrasonic assisted treatment. A possible photocatalytic mechanism is also discussed.

Published in Catalysts

ISSN: 2073-4344 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology; Science: Chemistry
Website: https://www.mdpi.com/journal/catalysts

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