DOI: 10.1002/adfm.201401279. One‐Step Hydrothermal Synthesis of 2D Hexagonal Nanoplates of α‐Fe<sub>2</sub>O<sub>3</sub>/Graphene Composites with Enhanced Photocatalytic Activity

One‐Step Hydrothermal Synthesis of 2D Hexagonal Nanoplates of α‐Fe2O3/Graphene Composites with Enhanced Photocatalytic Activity

10.1002/adfm.201401279

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

There has been significant progress in the field of semiconductor photocatalysis, but it is still a challenge to fabricate low‐cost and high‐activity photocatalysts because of safety issues and non‐secondary pollution to the environment. Here, 2D hexagonal nanoplates of α‐Fe2O3/graphene composites with relatively good distribution are synthesized for the first time using a simple, one‐step, template‐free, hydrothermal method that achieves the effective reduction of the graphene oxide (GO) to graphene and intimate and large contact interfaces of the α‐Fe2O3 nanoplates with graphene. The α‐Fe2O3/graphene composites showed significantly enhancement in the photocatalytic activity compared with the pure α‐Fe2O3 nanoplates. At an optimal ratio of 5 wt% graphene, 98% of Rhodamine (RhB) is decomposed with 20 min of irradiation, and the rate constant of the composites is almost four times higher than that of pure α‐Fe2O3 nanoplates. The decisive factors in improving the photocatalytic performance are the intimate and large contact interfaces between 2D hexagonal α‐Fe2O3 nanoplates and graphene, in addition to the high electron withdrawing/storing ability and the highconductivity of reduced graphene oxide (RGO) formed during the hydrothermal reaction. The effective charge transfer from α‐Fe2O3 nanoplates to graphene sheets is demonstrated by the significant weakening of photoluminescence in α‐Fe2O3/graphene composites.

Bibliography

Han, S., Hu, L., Liang, Z., Wageh, S., AlâGhamdi, A. A., Chen, Y., & Fang, X. (2014). OneâStep Hydrothermal Synthesis of 2D Hexagonal Nanoplates of Î±âFe2O3/Graphene Composites with Enhanced Photocatalytic Activity. Advanced Functional Materials, 24(36), 5719â5727. Portico.

Authors 7

Sancan Han (first)
Linfeng Hu (additional)
Ziqi Liang (additional)
Swelm Wageh (additional)
Ahmed A. Al‐Ghamdi (additional)
Yongsheng Chen (additional)
Xiaosheng Fang (additional)

References 53 Referenced 342

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Dates

Type	When
Created	11 years, 1 month ago (July 15, 2014, 1:06 p.m.)
Deposited	1 year, 10 months ago (Oct. 16, 2023, 12:22 p.m.)
Indexed	1 day, 20 hours ago (Aug. 23, 2025, 1:11 a.m.)
Issued	11 years, 1 month ago (July 14, 2014)
Published	11 years, 1 month ago (July 14, 2014)
Published Online	11 years, 1 month ago (July 14, 2014)
Published Print	10 years, 11 months ago (Sept. 1, 2014)

Funders 0

None

BibTeX

@article{Han_2014, title={One‐Step Hydrothermal Synthesis of 2D Hexagonal Nanoplates of α‐Fe2O3/Graphene Composites with Enhanced Photocatalytic Activity}, volume={24}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.201401279}, DOI={10.1002/adfm.201401279}, number={36}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Han, Sancan and Hu, Linfeng and Liang, Ziqi and Wageh, Swelm and Al‐Ghamdi, Ahmed A. and Chen, Yongsheng and Fang, Xiaosheng}, year={2014}, month=jul, pages={5719–5727} }

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