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

Research output: Contribution to journalArticle

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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 languageEnglish
Pages (from-to)22153-22160
Number of pages8
JournalRSC Advances
Volume9
Issue number38
DOIs
Publication statusPublished - 2019 Jan 1

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Photooxidation
Nanosheets
Decomposition
Reaction rates
Rate constants
Crystallization
Magnetic susceptibility
Etching
Catalysts
Kinetics
Acids
bisphenol A

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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Application of pea-like yolk-shell structured Fe3O4@TiO2 nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A. / Li, Xingxing; Cui, Mingcan; Lee, Yonghyeon; Choi, Jongbok; Khim, Jeehyeong.

In: RSC Advances, Vol. 9, No. 38, 01.01.2019, p. 22153-22160.

Research output: Contribution to journalArticle

Li, Xingxing ; Cui, Mingcan ; Lee, Yonghyeon ; Choi, Jongbok ; Khim, Jeehyeong. / Application of pea-like yolk-shell structured Fe3O4@TiO2 nanosheets for photocatalytic and photo-Fenton oxidation of bisphenol-A. In: RSC Advances. 2019 ; Vol. 9, No. 38. pp. 22153-22160.
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