A novel α-Fe2O3@g-C3N4 catalyst: Synthesis derived from Fe-based MOF and its superior photo-Fenton performance

By T. Guo, Kai Wang, Gaoke Zhang, Xiaoyong Wu. Applications of Surface Science, 2019

305 citations recorded by the source corpus.

Abstract Fabricating heterojunction catalysts is a promising strategy for improving the performance in heterogeneous photo-Fenton reaction (PFR). Herein, a Z-scheme heterostructured α-Fe2O3@g-C3N4 catalyst was successfully synthesized through the co-calcination of melamine and Fe-based MOF. The characterization results demonstrated that α-Fe2O3 nanoparticles anchored on the surface of g-C3N4 successfully. The degradation of tetracycline (TC) in visible-light/H2O2 system was adopted to evaluate the photo-Fenton activity of the catalysts. About 92% of TC was degraded by the optimum composite FOCN-0.45 in 60 min; the degradation rate (0.042 min−1) of TC by the FOCN-0.45 is 6, 7 and 14 times higher than that by pristine MIL-53 (Fe) (0.007 min−1), α-Fe2O3 (0.006 min−1) and g-C3N4 (0.003 min−1), respectively. The prepared FOCN-0.45 composite exhibited excellent performance and high stability in a wide range of pH value. The promoted photo-Fenton catalytic efficiency benefited from the Z-scheme heterojunctions of α-Fe2O3@g-C3N4, which enhanced the separation ability of photo-generated charge carriers and increased the electrons that participated in Fe2+/Fe3+ cycle. The boosting OH radicals degraded organic pollutants as main reactive radicals. This work presents a feasible path to design and synthesize heterogeneous photo-Fenton catalysts for the removal of organic pollutants.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/ab6d6e568cfb139fb72c64ca024d17f500004b2d

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In Materials Chemistry

1. D. Dionysiou
2. S. Pillai
3. Nishanth Thomas

In Renewable Energy, Sustainability and the Environment

1. S. Pillai
2. D. Dionysiou

In Water Science and Technology

1. D. Dionysiou
2. Shaobin Wang

Citations in the corpus

• Heterogeneous Fenton catalysts: A review of recent advances (2020, background): “In a similar perspective, a co-calcination approach of melamine (Hughes, 1941) (a cyclic compound of formula C3H6N6) with Fe-based metal-organic framework (MIL-53(Fe)), resulted in the formation of Zscheme heterostructure catalyst α-Fe2O3 @g-C3N4 (Guo et al., 2019).”