One-pot solvothermal synthesis of multi-shelled α-Fe 2O3 hollow spheres with enhanced visible-light photocatalytic activity

Yu Liu; Caiyun Yu; Wei Dai; Xuehui Gao; Haisheng Qian; Yong Hu; Xiao Hu

doi:10.1016/j.jallcom.2012.11.047

One-pot solvothermal synthesis of multi-shelled α-Fe ₂O₃ hollow spheres with enhanced visible-light photocatalytic activity

Yu Liu, Caiyun Yu, Wei Dai, Xuehui Gao, Haisheng Qian, Yong Hu^*, Xiao Hu

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

65 Citations (Scopus)

Abstract

α-Fe₂O₃ hollow spheres with novel multiple porous shells were successfully prepared by a facile solvothermal treatment of carbon spheres and FeCl₃ṡ6H₂O in ethylene glycol at 200 °C for 10 h, followed by calcination in air at 500 °C for 3 h. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the crystalline structure and morphology of the multi-shelled hollow spheres, and a possible growth mechanism of multiple shells was discussed. Furthermore, the as-obtained products exhibit enhanced visible-light photocatalytic activity for the degradation of rhodamine B (RhB) in the presence of H₂O₂.

Original language	English
Pages (from-to)	440-443
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	551
DOIs	https://doi.org/10.1016/j.jallcom.2012.11.047
Publication status	Published - Feb 25 2013
Externally published	Yes

ASJC Scopus Subject Areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Keywords

Catalysis
Crystal growth
Nanostructured materials
Solvothermal method

Access to Document

10.1016/j.jallcom.2012.11.047

Cite this

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title = "One-pot solvothermal synthesis of multi-shelled α-Fe 2O3 hollow spheres with enhanced visible-light photocatalytic activity",

abstract = "α-Fe2O3 hollow spheres with novel multiple porous shells were successfully prepared by a facile solvothermal treatment of carbon spheres and FeCl3ṡ6H2O in ethylene glycol at 200 °C for 10 h, followed by calcination in air at 500 °C for 3 h. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the crystalline structure and morphology of the multi-shelled hollow spheres, and a possible growth mechanism of multiple shells was discussed. Furthermore, the as-obtained products exhibit enhanced visible-light photocatalytic activity for the degradation of rhodamine B (RhB) in the presence of H2O2.",

keywords = "Catalysis, Crystal growth, Nanostructured materials, Solvothermal method",

author = "Yu Liu and Caiyun Yu and Wei Dai and Xuehui Gao and Haisheng Qian and Yong Hu and Xiao Hu",

year = "2013",

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doi = "10.1016/j.jallcom.2012.11.047",

language = "English",

volume = "551",

pages = "440--443",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

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TY - JOUR

T1 - One-pot solvothermal synthesis of multi-shelled α-Fe 2O3 hollow spheres with enhanced visible-light photocatalytic activity

AU - Liu, Yu

AU - Yu, Caiyun

AU - Dai, Wei

AU - Gao, Xuehui

AU - Qian, Haisheng

AU - Hu, Yong

AU - Hu, Xiao

PY - 2013/2/25

Y1 - 2013/2/25

N2 - α-Fe2O3 hollow spheres with novel multiple porous shells were successfully prepared by a facile solvothermal treatment of carbon spheres and FeCl3ṡ6H2O in ethylene glycol at 200 °C for 10 h, followed by calcination in air at 500 °C for 3 h. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the crystalline structure and morphology of the multi-shelled hollow spheres, and a possible growth mechanism of multiple shells was discussed. Furthermore, the as-obtained products exhibit enhanced visible-light photocatalytic activity for the degradation of rhodamine B (RhB) in the presence of H2O2.

AB - α-Fe2O3 hollow spheres with novel multiple porous shells were successfully prepared by a facile solvothermal treatment of carbon spheres and FeCl3ṡ6H2O in ethylene glycol at 200 °C for 10 h, followed by calcination in air at 500 °C for 3 h. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the crystalline structure and morphology of the multi-shelled hollow spheres, and a possible growth mechanism of multiple shells was discussed. Furthermore, the as-obtained products exhibit enhanced visible-light photocatalytic activity for the degradation of rhodamine B (RhB) in the presence of H2O2.

KW - Catalysis

KW - Crystal growth

KW - Nanostructured materials

KW - Solvothermal method

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JF - Journal of Alloys and Compounds

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