Application of pea-like yolk-shell structured Fe3O4@TiO2 nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A

Xingxing Li; Mingcan Cui; Yonghyeon Lee; Jongbok Choi; Jeehyeong Khim

doi:10.1039/c9ra04084f

Application of pea-like yolk-shell structured Fe₃O₄@TiO₂ nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A

Xingxing Li, Mingcan Cui, Yonghyeon Lee, Jongbok Choi, Jeehyeong Khim

School of Civil, Environmental and Architectural Engineering

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

15 Citations (Scopus)

Abstract

Uniform pea-like yolk-shell (PLYS) structured magnetic TiO₂(PLYS-Fe₃O₄@TiO₂) nanosheets have been prepared via a combined kinetics-controlled mechanical force-driven and hydrothermal etching assisted crystallization method and characterized. The resulting PLYS-Fe₃O₄@TiO₂ nanosheets possess well defined yolk-shell structures with a large BET surface area (∼187.26 m² g^-1) and a strong magnetic susceptibility (∼17.4 emu g^-1). The reaction rate constant was 24.2 × 10^-2 min^-1 as a result of oxidative decomposition of BPA using UV/PLYS-Fe₃O₄@TiO₂/H₂O₂ system. This is 1.1 and 8.34 times faster than the BPA decomposition reaction rate constant in UV/TiO₂/H₂O₂ and UV/Fe₃O₄/H₂O₂ systems, respectively. The synthesized catalyst also exhibited excellent recycle capability and excellent acid decomposition performance.

Original language	English
Pages (from-to)	22153-22160
Number of pages	8
Journal	RSC Advances
Volume	9
Issue number	38
DOIs	https://doi.org/10.1039/c9ra04084f
Publication status	Published - 2019

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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title = "Application of pea-like yolk-shell structured Fe3O4@TiO2 nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A",

abstract = "Uniform pea-like yolk-shell (PLYS) structured magnetic TiO2(PLYS-Fe3O4@TiO2) nanosheets have been prepared via a combined kinetics-controlled mechanical force-driven and hydrothermal etching assisted crystallization method and characterized. The resulting PLYS-Fe3O4@TiO2 nanosheets possess well defined yolk-shell structures with a large BET surface area (∼187.26 m2 g-1) and a strong magnetic susceptibility (∼17.4 emu g-1). The reaction rate constant was 24.2 × 10-2 min-1 as a result of oxidative decomposition of BPA using UV/PLYS-Fe3O4@TiO2/H2O2 system. This is 1.1 and 8.34 times faster than the BPA decomposition reaction rate constant in UV/TiO2/H2O2 and UV/Fe3O4/H2O2 systems, respectively. The synthesized catalyst also exhibited excellent recycle capability and excellent acid decomposition performance.",

author = "Xingxing Li and Mingcan Cui and Yonghyeon Lee and Jongbok Choi and Jeehyeong Khim",

note = "Funding Information: This work was nancially supported by the Korean Ministry of the Environment as the Subsurface Environment Management (SEM) project (No. 2018002480009 and 20190024800011) and the National Research Foundation (NRF) project (No. 2017R1D1A1B03030079) for the nancial support. We gratefully acknowledge the assistance of Dr Dongyuan Zhao, Wei Li and Pengpeng Qiu of Chemistry Department in Fudan University for preparing the materials and valuable discussions. Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/c9ra04084f",

language = "English",

volume = "9",

pages = "22153--22160",

journal = "RSC Advances",

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publisher = "Royal Society of Chemistry",

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AU - Li, Xingxing

AU - Cui, Mingcan

AU - Lee, Yonghyeon

AU - Choi, Jongbok

AU - Khim, Jeehyeong

N1 - Funding Information: This work was nancially supported by the Korean Ministry of the Environment as the Subsurface Environment Management (SEM) project (No. 2018002480009 and 20190024800011) and the National Research Foundation (NRF) project (No. 2017R1D1A1B03030079) for the nancial support. We gratefully acknowledge the assistance of Dr Dongyuan Zhao, Wei Li and Pengpeng Qiu of Chemistry Department in Fudan University for preparing the materials and valuable discussions. Publisher Copyright: © 2019 The Royal Society of Chemistry.

PY - 2019

Y1 - 2019

N2 - Uniform pea-like yolk-shell (PLYS) structured magnetic TiO2(PLYS-Fe3O4@TiO2) nanosheets have been prepared via a combined kinetics-controlled mechanical force-driven and hydrothermal etching assisted crystallization method and characterized. The resulting PLYS-Fe3O4@TiO2 nanosheets possess well defined yolk-shell structures with a large BET surface area (∼187.26 m2 g-1) and a strong magnetic susceptibility (∼17.4 emu g-1). The reaction rate constant was 24.2 × 10-2 min-1 as a result of oxidative decomposition of BPA using UV/PLYS-Fe3O4@TiO2/H2O2 system. This is 1.1 and 8.34 times faster than the BPA decomposition reaction rate constant in UV/TiO2/H2O2 and UV/Fe3O4/H2O2 systems, respectively. The synthesized catalyst also exhibited excellent recycle capability and excellent acid decomposition performance.

AB - Uniform pea-like yolk-shell (PLYS) structured magnetic TiO2(PLYS-Fe3O4@TiO2) nanosheets have been prepared via a combined kinetics-controlled mechanical force-driven and hydrothermal etching assisted crystallization method and characterized. The resulting PLYS-Fe3O4@TiO2 nanosheets possess well defined yolk-shell structures with a large BET surface area (∼187.26 m2 g-1) and a strong magnetic susceptibility (∼17.4 emu g-1). The reaction rate constant was 24.2 × 10-2 min-1 as a result of oxidative decomposition of BPA using UV/PLYS-Fe3O4@TiO2/H2O2 system. This is 1.1 and 8.34 times faster than the BPA decomposition reaction rate constant in UV/TiO2/H2O2 and UV/Fe3O4/H2O2 systems, respectively. The synthesized catalyst also exhibited excellent recycle capability and excellent acid decomposition performance.

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Application of pea-like yolk-shell structured Fe₃O₄@TiO₂ nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A

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