期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 9, 期 5, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2021.106034
关键词
Fe2O3-TiO2@porphyrin@graphene composite; Photocatalytic activity; Dye photo-degradation; Organic semiconductors
资金
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [104.05-2019.01]
The graphene@Fe2O3-TiO2@porphyrin composite was successfully synthesized through re-precipitation self-assembly, with porphyrin aggregates formed as nanofibers with nanometer diameters and micrometer lengths. This composite was used to photocatalytically degrade the pollutant Rhodamine B, exhibiting high activity under simulated irradiation.
Photocatalysis is a promising pathway for organic dye degradation. However, the low harvesting efficiency and poor recyclability has hindered the application of photocatalysts in practical. Herein, a graphene@Fe2O3-TiO2@porphyrin composite was successfully synthesized through re-precipitation self-assembly. The prepared was characterized by spectroscopic, microscopic, and X-ray diffraction techniques. The Fe2O3-TiO2 particles in the graphene@Fe2O3-TiO2@porphyrin composite was well incorporated with the aggregated porphyrin and graphene. The porphyrin aggregates occurred as well-defined nanofibers with nanometer diameters and micrometer lengths. The as-prepared graphene@Fe2O3-TiO2@porphyrin composite was used to photocatalytically degrade the pollutant Rhodamine B, showing high activity under simulated irradiation. A plausible mechanism for the photocatalytic performance of the graphene@Fe2O3-TiO2@porphyrin composite toward Rhodamine B was also presented.
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