Hierarchical structured ZnFe2O4@SiO2@TiO2 composite for enhanced visible-light photocatalytic activity

Xianfeng Meng; Yan Zhuang; Hua Tang; Chunhua Lu

doi:10.1016/j.jallcom.2018.05.150

Hierarchical structured ZnFe₂O₄@SiO₂@TiO₂ composite for enhanced visible-light photocatalytic activity

Xianfeng Meng, Yan Zhuang, Hua Tang, Chunhua Lu

College of Materials Science and Engineering

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

70 Scopus citations

Abstract

The preparation and application of magnetic photocatalyst has become an important subject in removal of organic pollutant. In this study, ZnFe₂O₄@SiO₂@TiO₂ (hereafter ZST) photocatalysts were facilely synthesized via a sol-gel method. The load amount of TiO₂ particles could be tailored by controlling TBOT dosage in ZST composites. The photocatalytic activity was evaluated by the degradation of methylene blue (MB). Under visible light irradiation, the ZST40 catalyst displayed superior photocatalytic performance. The degradation ratio of MB was up to 95.1% in 2 h, which demonstrated that the catalyst with larger specific surface area and mesoporous structure had a better catalytic performance in degrading MB. In addition, the ZST catalyst exhibited excellent chemical stability and recyclability after eight recycling runs. We anticipate that controllable synthesis of ZST photocatalysts has promising applications in environment treatment.

Original language	English
Pages (from-to)	15-23
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	761
DOIs	https://doi.org/10.1016/j.jallcom.2018.05.150
State	Published - 15 Sep 2018

Keywords

Magnetic separation
Photocatalysis
Sol-gel method
ZnFeO@SiO@TiO

Access to Document

10.1016/j.jallcom.2018.05.150

Cite this

@article{150d4c3945a440a3b9a92e14ba801f66,

title = "Hierarchical structured ZnFe2O4@SiO2@TiO2 composite for enhanced visible-light photocatalytic activity",

abstract = "The preparation and application of magnetic photocatalyst has become an important subject in removal of organic pollutant. In this study, ZnFe2O4@SiO2@TiO2 (hereafter ZST) photocatalysts were facilely synthesized via a sol-gel method. The load amount of TiO2 particles could be tailored by controlling TBOT dosage in ZST composites. The photocatalytic activity was evaluated by the degradation of methylene blue (MB). Under visible light irradiation, the ZST40 catalyst displayed superior photocatalytic performance. The degradation ratio of MB was up to 95.1% in 2 h, which demonstrated that the catalyst with larger specific surface area and mesoporous structure had a better catalytic performance in degrading MB. In addition, the ZST catalyst exhibited excellent chemical stability and recyclability after eight recycling runs. We anticipate that controllable synthesis of ZST photocatalysts has promising applications in environment treatment.",

keywords = "Magnetic separation, Photocatalysis, Sol-gel method, ZnFeO@SiO@TiO",

author = "Xianfeng Meng and Yan Zhuang and Hua Tang and Chunhua Lu",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = sep,

day = "15",

doi = "10.1016/j.jallcom.2018.05.150",

language = "英语",

volume = "761",

pages = "15--23",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Hierarchical structured ZnFe2O4@SiO2@TiO2 composite for enhanced visible-light photocatalytic activity

AU - Meng, Xianfeng

AU - Zhuang, Yan

AU - Tang, Hua

AU - Lu, Chunhua

PY - 2018/9/15

Y1 - 2018/9/15

N2 - The preparation and application of magnetic photocatalyst has become an important subject in removal of organic pollutant. In this study, ZnFe2O4@SiO2@TiO2 (hereafter ZST) photocatalysts were facilely synthesized via a sol-gel method. The load amount of TiO2 particles could be tailored by controlling TBOT dosage in ZST composites. The photocatalytic activity was evaluated by the degradation of methylene blue (MB). Under visible light irradiation, the ZST40 catalyst displayed superior photocatalytic performance. The degradation ratio of MB was up to 95.1% in 2 h, which demonstrated that the catalyst with larger specific surface area and mesoporous structure had a better catalytic performance in degrading MB. In addition, the ZST catalyst exhibited excellent chemical stability and recyclability after eight recycling runs. We anticipate that controllable synthesis of ZST photocatalysts has promising applications in environment treatment.

AB - The preparation and application of magnetic photocatalyst has become an important subject in removal of organic pollutant. In this study, ZnFe2O4@SiO2@TiO2 (hereafter ZST) photocatalysts were facilely synthesized via a sol-gel method. The load amount of TiO2 particles could be tailored by controlling TBOT dosage in ZST composites. The photocatalytic activity was evaluated by the degradation of methylene blue (MB). Under visible light irradiation, the ZST40 catalyst displayed superior photocatalytic performance. The degradation ratio of MB was up to 95.1% in 2 h, which demonstrated that the catalyst with larger specific surface area and mesoporous structure had a better catalytic performance in degrading MB. In addition, the ZST catalyst exhibited excellent chemical stability and recyclability after eight recycling runs. We anticipate that controllable synthesis of ZST photocatalysts has promising applications in environment treatment.

KW - Magnetic separation

KW - Photocatalysis

KW - Sol-gel method

KW - ZnFeO@SiO@TiO

UR - http://www.scopus.com/inward/record.url?scp=85047153959&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2018.05.150

DO - 10.1016/j.jallcom.2018.05.150

M3 - 文章

AN - SCOPUS:85047153959

SN - 0925-8388

VL - 761

SP - 15

EP - 23

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Hierarchical structured ZnFe₂O₄@SiO₂@TiO₂ composite for enhanced visible-light photocatalytic activity

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this