Efficient activation of K2S2O8 by MoS2-ZnFe2O4 composite for the rapid degradation of tetracycline

Fenting Yu; Fang Zhu; He Zhang; Sridhar Komarneni; Jianfeng Ma

doi:10.1016/j.matlet.2022.132204

Efficient activation of K₂S₂O₈ by MoS₂-ZnFe₂O₄ composite for the rapid degradation of tetracycline

Fenting Yu
, Fang Zhu
, He Zhang
, Sridhar Komarneni
, Jianfeng Ma

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

20 Scopus citations

Abstract

The MoS₂-ZnFe₂O₄ composite catalyst was fabricated by a hydrothermal method and applied to decompose tetracycline (TC) by activating persulfate (PS) with the assistance of visible light (Vis). The TC elimination efficiency of MoS₂-ZnFe₂O₄ catalyst reached 84.5% within 30 min, which was much higher than that of either MoS₂ or ZnFe₂O₄ alone and this catalyst demonstrated satisfactory catalytic performance over a wide pH range (3–9) for the removal of TC. The improved efficiency of TC degradation can be attributed to the production of highly active free radicals such as •OH, SO₄^•-, and O₂^•-. In addition, the catalyst showed favorable stability and recyclability when tested in three consecutive cycles.

Original language	English (US)
Article number	132204
Journal	Materials Letters
Volume	318
DOIs	https://doi.org/10.1016/j.matlet.2022.132204
State	Published - Jul 1 2022

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2022.132204

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title = "Efficient activation of K2S2O8 by MoS2-ZnFe2O4 composite for the rapid degradation of tetracycline",

abstract = "The MoS2-ZnFe2O4 composite catalyst was fabricated by a hydrothermal method and applied to decompose tetracycline (TC) by activating persulfate (PS) with the assistance of visible light (Vis). The TC elimination efficiency of MoS2-ZnFe2O4 catalyst reached 84.5\% within 30 min, which was much higher than that of either MoS2 or ZnFe2O4 alone and this catalyst demonstrated satisfactory catalytic performance over a wide pH range (3{\textendash}9) for the removal of TC. The improved efficiency of TC degradation can be attributed to the production of highly active free radicals such as •OH, SO4•-, and O2•-. In addition, the catalyst showed favorable stability and recyclability when tested in three consecutive cycles.",

author = "Fenting Yu and Fang Zhu and He Zhang and Sridhar Komarneni and Jianfeng Ma",

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T1 - Efficient activation of K2S2O8 by MoS2-ZnFe2O4 composite for the rapid degradation of tetracycline

AU - Yu, Fenting

AU - Zhu, Fang

AU - Zhang, He

AU - Komarneni, Sridhar

AU - Ma, Jianfeng

PY - 2022/7/1

Y1 - 2022/7/1

N2 - The MoS2-ZnFe2O4 composite catalyst was fabricated by a hydrothermal method and applied to decompose tetracycline (TC) by activating persulfate (PS) with the assistance of visible light (Vis). The TC elimination efficiency of MoS2-ZnFe2O4 catalyst reached 84.5% within 30 min, which was much higher than that of either MoS2 or ZnFe2O4 alone and this catalyst demonstrated satisfactory catalytic performance over a wide pH range (3–9) for the removal of TC. The improved efficiency of TC degradation can be attributed to the production of highly active free radicals such as •OH, SO4•-, and O2•-. In addition, the catalyst showed favorable stability and recyclability when tested in three consecutive cycles.

AB - The MoS2-ZnFe2O4 composite catalyst was fabricated by a hydrothermal method and applied to decompose tetracycline (TC) by activating persulfate (PS) with the assistance of visible light (Vis). The TC elimination efficiency of MoS2-ZnFe2O4 catalyst reached 84.5% within 30 min, which was much higher than that of either MoS2 or ZnFe2O4 alone and this catalyst demonstrated satisfactory catalytic performance over a wide pH range (3–9) for the removal of TC. The improved efficiency of TC degradation can be attributed to the production of highly active free radicals such as •OH, SO4•-, and O2•-. In addition, the catalyst showed favorable stability and recyclability when tested in three consecutive cycles.

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U2 - 10.1016/j.matlet.2022.132204

DO - 10.1016/j.matlet.2022.132204

M3 - Article

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JO - Materials Letters

JF - Materials Letters

M1 - 132204

ER -

Efficient activation of K₂S₂O₈ by MoS₂-ZnFe₂O₄ composite for the rapid degradation of tetracycline

Abstract

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