A novel protocol to design TiO2-Fe2O3 hybrids with effective charge separation efficiency for improved photocatalysis

Gang Cheng; Feifan Xu; Jinyan Xiong; Yi Wei; Florian J. Stadler; Rong Chen

doi:10.1016/j.apt.2016.12.004

A novel protocol to design TiO₂-Fe₂O₃ hybrids with effective charge separation efficiency for improved photocatalysis

Gang Cheng^*, Feifan Xu, Jinyan Xiong, Yi Wei, Florian J. Stadler, Rong Chen

^*Corresponding author for this work

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

34 Scopus citations

Abstract

TiO₂-based heterogeneous photocatalysis has been widely considered as a promising technique for decontamination of water. Herein the hybrid of TiO₂ nanocrystals decorated Fe₂O₃ nanoparticles was successfully synthesized via a mild hydrothermal method, derived from favorable titanium glycolate and water-soluble Fe^II salt precursors. The composition and structure of the as-synthesized TiO₂-Fe₂O₃ hybrids were characterized by Powder X-ray diffraction (XRD), EDX mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The photocatalytic activity was evaluated by the decomposition of Rhodamine B in an aqueous solution under visible-light (λ > 420 nm). The results show that the TiO₂-Fe₂O₃ nanocomposite exhibits superior photocatalytic capability to the bare ones upon Rhodamine B degradation, owing to promoted photo-induced electrons and holes separation and migration on the basis of photoluminescence spectra, photocurrent measurements, and electrochemical impedance (EIS) spectroscopy.

Original language	English
Pages (from-to)	665-670
Number of pages	6
Journal	Advanced Powder Technology
Volume	28
Issue number	2
DOIs	https://doi.org/10.1016/j.apt.2016.12.004
State	Published - 1 Feb 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 The Society of Powder Technology Japan.

Keywords

Interfacial charge transfer
Photocatalysis
Precursor synthesis
TiO-FeO hybrids

ASJC Scopus subject areas

General Chemical Engineering
Mechanics of Materials

Access to Document

10.1016/j.apt.2016.12.004

Cite this

@article{a90ff5731c784c208fd2c804e0f01469,

title = "A novel protocol to design TiO2-Fe2O3 hybrids with effective charge separation efficiency for improved photocatalysis",

abstract = "TiO2-based heterogeneous photocatalysis has been widely considered as a promising technique for decontamination of water. Herein the hybrid of TiO2 nanocrystals decorated Fe2O3 nanoparticles was successfully synthesized via a mild hydrothermal method, derived from favorable titanium glycolate and water-soluble FeII salt precursors. The composition and structure of the as-synthesized TiO2-Fe2O3 hybrids were characterized by Powder X-ray diffraction (XRD), EDX mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The photocatalytic activity was evaluated by the decomposition of Rhodamine B in an aqueous solution under visible-light (λ > 420 nm). The results show that the TiO2-Fe2O3 nanocomposite exhibits superior photocatalytic capability to the bare ones upon Rhodamine B degradation, owing to promoted photo-induced electrons and holes separation and migration on the basis of photoluminescence spectra, photocurrent measurements, and electrochemical impedance (EIS) spectroscopy.",

keywords = "Interfacial charge transfer, Photocatalysis, Precursor synthesis, TiO-FeO hybrids",

author = "Gang Cheng and Feifan Xu and Jinyan Xiong and Yi Wei and Stadler, \{Florian J.\} and Rong Chen",

note = "Publisher Copyright: {\textcopyright} 2016 The Society of Powder Technology Japan.",

year = "2017",

month = feb,

day = "1",

doi = "10.1016/j.apt.2016.12.004",

language = "English",

volume = "28",

pages = "665--670",

journal = "Advanced Powder Technology",

issn = "0921-8831",

number = "2",

}

TY - JOUR

T1 - A novel protocol to design TiO2-Fe2O3 hybrids with effective charge separation efficiency for improved photocatalysis

AU - Cheng, Gang

AU - Xu, Feifan

AU - Xiong, Jinyan

AU - Wei, Yi

AU - Stadler, Florian J.

AU - Chen, Rong

PY - 2017/2/1

Y1 - 2017/2/1

N2 - TiO2-based heterogeneous photocatalysis has been widely considered as a promising technique for decontamination of water. Herein the hybrid of TiO2 nanocrystals decorated Fe2O3 nanoparticles was successfully synthesized via a mild hydrothermal method, derived from favorable titanium glycolate and water-soluble FeII salt precursors. The composition and structure of the as-synthesized TiO2-Fe2O3 hybrids were characterized by Powder X-ray diffraction (XRD), EDX mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The photocatalytic activity was evaluated by the decomposition of Rhodamine B in an aqueous solution under visible-light (λ > 420 nm). The results show that the TiO2-Fe2O3 nanocomposite exhibits superior photocatalytic capability to the bare ones upon Rhodamine B degradation, owing to promoted photo-induced electrons and holes separation and migration on the basis of photoluminescence spectra, photocurrent measurements, and electrochemical impedance (EIS) spectroscopy.

AB - TiO2-based heterogeneous photocatalysis has been widely considered as a promising technique for decontamination of water. Herein the hybrid of TiO2 nanocrystals decorated Fe2O3 nanoparticles was successfully synthesized via a mild hydrothermal method, derived from favorable titanium glycolate and water-soluble FeII salt precursors. The composition and structure of the as-synthesized TiO2-Fe2O3 hybrids were characterized by Powder X-ray diffraction (XRD), EDX mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The photocatalytic activity was evaluated by the decomposition of Rhodamine B in an aqueous solution under visible-light (λ > 420 nm). The results show that the TiO2-Fe2O3 nanocomposite exhibits superior photocatalytic capability to the bare ones upon Rhodamine B degradation, owing to promoted photo-induced electrons and holes separation and migration on the basis of photoluminescence spectra, photocurrent measurements, and electrochemical impedance (EIS) spectroscopy.

KW - Interfacial charge transfer

KW - Photocatalysis

KW - Precursor synthesis

KW - TiO-FeO hybrids

UR - https://www.scopus.com/pages/publications/85009274773

U2 - 10.1016/j.apt.2016.12.004

DO - 10.1016/j.apt.2016.12.004

M3 - Article

AN - SCOPUS:85009274773

SN - 0921-8831

VL - 28

SP - 665

EP - 670

JO - Advanced Powder Technology

JF - Advanced Powder Technology

IS - 2

ER -