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Article Navigation >  International Journal of Minerals, Metallurgy and Materials  > 2020 > Accepted Manuscript

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Research Article

Preparation and photocatalytic property of Fe2O3/ZnO composite with superhydrophobicity

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  • Received: 19 March 2020; Revised: 14 April 2020; Accepted: 11 May 2020; Available online: 13 May 2020
  • A facile approach was developed to construct Fe2O3-modified ZnO micro/nanostructures with excellent superhydrophobicity and photocatalytic activity. The impacts of stearic acid (SA) and Fe2O3-modified on the morphology, water contact angle (WCA) and photocatalytic degradation were investigated. The superhydrophobic results showed increased of WCA from 144 ± 2° to 154 ± 2° when SA weight increase from 5 mg to 20 mg due to formation of hierarchical or rough structure. Furthermore, Fe2O3-modified ZnO micro/nanostructures surface before and after treatment with SA (20 mg) chosen to evaluate the photocatalytic of Methylene blue (MB) dye by supporting visible-light. The results showed degradation of MB after 80 min of irradiation with photodegradation efficiency 91.5% for superhydrophobic state and 92% for the hydrophilic state. This improvement in photocatalytic activity at both states may be attributable to an increase of surface area and improve charge carriers separation.
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Preparation and photocatalytic property of Fe2O3/ZnO composite with superhydrophobicity

    Received: 19 March 2020
    Revised: 14 April 2020
    Accepted: 11 May 2020
    Available online: 13 May 2020

Abstract: A facile approach was developed to construct Fe2O3-modified ZnO micro/nanostructures with excellent superhydrophobicity and photocatalytic activity. The impacts of stearic acid (SA) and Fe2O3-modified on the morphology, water contact angle (WCA) and photocatalytic degradation were investigated. The superhydrophobic results showed increased of WCA from 144 ± 2° to 154 ± 2° when SA weight increase from 5 mg to 20 mg due to formation of hierarchical or rough structure. Furthermore, Fe2O3-modified ZnO micro/nanostructures surface before and after treatment with SA (20 mg) chosen to evaluate the photocatalytic of Methylene blue (MB) dye by supporting visible-light. The results showed degradation of MB after 80 min of irradiation with photodegradation efficiency 91.5% for superhydrophobic state and 92% for the hydrophilic state. This improvement in photocatalytic activity at both states may be attributable to an increase of surface area and improve charge carriers separation.

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