A facile approach for the synthesis of magnetic separable Fe                          3                         O                         4                         @TiO                         2                         , core-shell nanocomposites as highly recyclable photocatalysts

Tiejun Xin; Mingliang Ma; Hepeng Zhang; Junwei Gu; Shuangjie Wang; Mengjiao Liu; Qiuyu Zhang

doi:10.1016/j.apsusc.2013.09.108

A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts

Tiejun Xin
, Mingliang Ma
, Hepeng Zhang
, Junwei Gu
, Shuangjie Wang
, Mengjiao Liu
, Qiuyu Zhang

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

217 Scopus citations

Abstract

A facile and efficient approach for the fabrication of Fe ₃ O ₄ @TiO ₂ nanocomposites with a good core-shell structure has been demonstrated. The approach employed involved the coating of successive titania shell on Fe ₃ O ₄ core using a mixed solvent method with the catalysis of ammonia followed by the crystallization of TiO ₂ through solvothermal method. The as-obtained core-shell structure was composed of a central Fe ₃ O ₄ core with a strong response to external fields, whereas the outer titanium oxide coating was useful for the degradation of organic contaminants. The results showed that Fe ₃ O ₄ @TiO ₂ nanocomposites exhibited high degree of crystallinity, excellent magnetic properties at room temperature. Furthermore, the as-prepared Fe ₃ O ₄ @TiO ₂ nanocomposites exhibited good photocatalytic activity toward the degradation of Rhodamine B (RhB) solution, which meant that they can be used as efficient and conveniently recoverable photocatalysts. In addition, the mechanism of coating by ammonia catalysis was also investigated.

Original language	English
Pages (from-to)	51-59
Number of pages	9
Journal	Applied Surface Science
Volume	288
DOIs	https://doi.org/10.1016/j.apsusc.2013.09.108
State	Published - 1 Jan 2014

Keywords

Core-shell structure
Mixed solvent method
Recyclable photocatalysts
Solvothermal method

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10.1016/j.apsusc.2013.09.108

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Xin, T., Ma, M., Zhang, H., Gu, J., Wang, S., Liu, M., & Zhang, Q. (2014). A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts Applied Surface Science, 288, 51-59. https://doi.org/10.1016/j.apsusc.2013.09.108

Xin, Tiejun ; Ma, Mingliang ; Zhang, Hepeng et al. / A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts In: Applied Surface Science. 2014 ; Vol. 288. pp. 51-59.

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title = " A facile approach for the synthesis of magnetic separable Fe 3 O 4 @TiO 2 , core-shell nanocomposites as highly recyclable photocatalysts ",

abstract = " A facile and efficient approach for the fabrication of Fe 3 O 4 @TiO 2 nanocomposites with a good core-shell structure has been demonstrated. The approach employed involved the coating of successive titania shell on Fe 3 O 4 core using a mixed solvent method with the catalysis of ammonia followed by the crystallization of TiO 2 through solvothermal method. The as-obtained core-shell structure was composed of a central Fe 3 O 4 core with a strong response to external fields, whereas the outer titanium oxide coating was useful for the degradation of organic contaminants. The results showed that Fe 3 O 4 @TiO 2 nanocomposites exhibited high degree of crystallinity, excellent magnetic properties at room temperature. Furthermore, the as-prepared Fe 3 O 4 @TiO 2 nanocomposites exhibited good photocatalytic activity toward the degradation of Rhodamine B (RhB) solution, which meant that they can be used as efficient and conveniently recoverable photocatalysts. In addition, the mechanism of coating by ammonia catalysis was also investigated.",

keywords = "Core-shell structure, Mixed solvent method, Recyclable photocatalysts, Solvothermal method",

author = "Tiejun Xin and Mingliang Ma and Hepeng Zhang and Junwei Gu and Shuangjie Wang and Mengjiao Liu and Qiuyu Zhang",

year = "2014",

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doi = "10.1016/j.apsusc.2013.09.108",

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journal = "Applied Surface Science",

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Xin, T, Ma, M, Zhang, H , Gu, J, Wang, S, Liu, M & Zhang, Q 2014, ' A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts ', Applied Surface Science, vol. 288, pp. 51-59. https://doi.org/10.1016/j.apsusc.2013.09.108

A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts . / Xin, Tiejun; Ma, Mingliang; Zhang, Hepeng et al.
In: Applied Surface Science, Vol. 288, 01.01.2014, p. 51-59.

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

TY - JOUR

T1 - A facile approach for the synthesis of magnetic separable Fe 3 O 4 @TiO 2 , core-shell nanocomposites as highly recyclable photocatalysts

AU - Xin, Tiejun

AU - Ma, Mingliang

AU - Zhang, Hepeng

AU - Gu, Junwei

AU - Wang, Shuangjie

AU - Liu, Mengjiao

AU - Zhang, Qiuyu

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A facile and efficient approach for the fabrication of Fe 3 O 4 @TiO 2 nanocomposites with a good core-shell structure has been demonstrated. The approach employed involved the coating of successive titania shell on Fe 3 O 4 core using a mixed solvent method with the catalysis of ammonia followed by the crystallization of TiO 2 through solvothermal method. The as-obtained core-shell structure was composed of a central Fe 3 O 4 core with a strong response to external fields, whereas the outer titanium oxide coating was useful for the degradation of organic contaminants. The results showed that Fe 3 O 4 @TiO 2 nanocomposites exhibited high degree of crystallinity, excellent magnetic properties at room temperature. Furthermore, the as-prepared Fe 3 O 4 @TiO 2 nanocomposites exhibited good photocatalytic activity toward the degradation of Rhodamine B (RhB) solution, which meant that they can be used as efficient and conveniently recoverable photocatalysts. In addition, the mechanism of coating by ammonia catalysis was also investigated.

AB - A facile and efficient approach for the fabrication of Fe 3 O 4 @TiO 2 nanocomposites with a good core-shell structure has been demonstrated. The approach employed involved the coating of successive titania shell on Fe 3 O 4 core using a mixed solvent method with the catalysis of ammonia followed by the crystallization of TiO 2 through solvothermal method. The as-obtained core-shell structure was composed of a central Fe 3 O 4 core with a strong response to external fields, whereas the outer titanium oxide coating was useful for the degradation of organic contaminants. The results showed that Fe 3 O 4 @TiO 2 nanocomposites exhibited high degree of crystallinity, excellent magnetic properties at room temperature. Furthermore, the as-prepared Fe 3 O 4 @TiO 2 nanocomposites exhibited good photocatalytic activity toward the degradation of Rhodamine B (RhB) solution, which meant that they can be used as efficient and conveniently recoverable photocatalysts. In addition, the mechanism of coating by ammonia catalysis was also investigated.

KW - Core-shell structure

KW - Mixed solvent method

KW - Recyclable photocatalysts

KW - Solvothermal method

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DO - 10.1016/j.apsusc.2013.09.108

M3 - 文章

AN - SCOPUS:84888431215

SN - 0169-4332

VL - 288

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JO - Applied Surface Science

JF - Applied Surface Science

ER -

Xin T, Ma M, Zhang H , Gu J, Wang S, Liu M et al. A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts Applied Surface Science. 2014 Jan 1;288:51-59. doi: 10.1016/j.apsusc.2013.09.108

A facile approach for the synthesis of magnetic separable Fe ₃ O ₄ @TiO ₂ , core-shell nanocomposites as highly recyclable photocatalysts

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Keywords

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