Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst

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

Authors

  • Hadis Zangeneh
  • Ali Akbar Zinatizadeh
  • M. Feyzi
  • Sirus Zinadini
  • Detlef W. Bahnemann

Research Organisations

External Research Organisations

  • Razi University
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Details

Original languageEnglish
Pages (from-to)6370-6381
Number of pages12
JournalJournal of Environmental Chemical Engineering
Volume6
Issue number5
Early online date2 Oct 2018
Publication statusPublished - Oct 2018

Abstract

In this work, different recalcitrant organic compounds including biologically treated palm oil mill effluent (POME), diazinon and paraquat dichloride and natural dye from algal growth in Solaymanshah's dam was degraded using a novel highly efficient magnetically visible driven photocatalyst (boron doped TiO 2-SiO 2 cobalt ferrite) which was synthesized by a sol gel hydrothermal method. The prepared nanocomposites were characterized by UV-vis diffuse reflectance (DRS) spectroscopy, X-ray diffraction (XRD), photoluminescence (PL), Fourier transform infrared (FT-IR), field emission scanning electron microscopy (FESEM) and vibrating sample magnetometer (VSM) analyses. The results revealed that boron doped-TiO 2-SiO 2 cobalt ferrite nanocomposite not only expanded the response region to the visible light but also reduced recombination of the photoinduced e -/h + pairs. The effects of various parameters, such as COD concentrations (300-800 mg/l), photocatalyst concentration (1.5-3.5 g/l) and pH (3-11) on the photocatalytic process were also evaluated. The COD contents was completely removed for the biologically treated POME, paraquat dichloride, diazinon, natural dye from algal growth in Solaymanshah dam's after 4/5, 3/5, 3 and 2/5 h, respectively at optimum conditions (initial COD concentration of 300 mg/l, catalyst loading 2/5 g/l and pH of 3). Furthermore, the magnetic nanocomposite can be easily recovered and separated with an extra magnet with a small loss of 0.01-0.05 g/l corresponding to 0.4-2 %. After being reused for three times, the reduction of COD removal efficiency of the natural dyes, diazinon, paraquat dichloride and biologically treated POME was about 1, 1, 3 and 4%, respectively that confirmed the photocatalytic stability of nanocomposite.

Keywords

    Magnetic CoFe O nanoparticles, Recalcitrant compounds, Separable visible driven photocatalyst, Wastewater treatment under sun light

ASJC Scopus subject areas

Cite this

Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst. / Zangeneh, Hadis; Zinatizadeh, Ali Akbar; Feyzi, M. et al.
In: Journal of Environmental Chemical Engineering, Vol. 6, No. 5, 10.2018, p. 6370-6381.

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

Zangeneh, H, Zinatizadeh, AA, Feyzi, M, Zinadini, S & Bahnemann, DW 2018, 'Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst', Journal of Environmental Chemical Engineering, vol. 6, no. 5, pp. 6370-6381. https://doi.org/10.1016/j.jece.2018.10.001
Zangeneh, H., Zinatizadeh, A. A., Feyzi, M., Zinadini, S., & Bahnemann, D. W. (2018). Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst. Journal of Environmental Chemical Engineering, 6(5), 6370-6381. https://doi.org/10.1016/j.jece.2018.10.001
Zangeneh H, Zinatizadeh AA, Feyzi M, Zinadini S, Bahnemann DW. Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst. Journal of Environmental Chemical Engineering. 2018 Oct;6(5):6370-6381. Epub 2018 Oct 2. doi: 10.1016/j.jece.2018.10.001
Zangeneh, Hadis ; Zinatizadeh, Ali Akbar ; Feyzi, M. et al. / Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst. In: Journal of Environmental Chemical Engineering. 2018 ; Vol. 6, No. 5. pp. 6370-6381.
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T1 - Photomineralization of recalcitrant wastewaters by a novel magnetically recyclable boron doped-TiO2-SiO2 cobalt ferrite nanocomposite as a visible-driven heterogeneous photocatalyst

AU - Zangeneh, Hadis

AU - Zinatizadeh, Ali Akbar

AU - Feyzi, M.

AU - Zinadini, Sirus

AU - Bahnemann, Detlef W.

N1 - © 2018 Elsevier Ltd. All rights reserved.

PY - 2018/10

Y1 - 2018/10

N2 - In this work, different recalcitrant organic compounds including biologically treated palm oil mill effluent (POME), diazinon and paraquat dichloride and natural dye from algal growth in Solaymanshah's dam was degraded using a novel highly efficient magnetically visible driven photocatalyst (boron doped TiO 2-SiO 2 cobalt ferrite) which was synthesized by a sol gel hydrothermal method. The prepared nanocomposites were characterized by UV-vis diffuse reflectance (DRS) spectroscopy, X-ray diffraction (XRD), photoluminescence (PL), Fourier transform infrared (FT-IR), field emission scanning electron microscopy (FESEM) and vibrating sample magnetometer (VSM) analyses. The results revealed that boron doped-TiO 2-SiO 2 cobalt ferrite nanocomposite not only expanded the response region to the visible light but also reduced recombination of the photoinduced e -/h + pairs. The effects of various parameters, such as COD concentrations (300-800 mg/l), photocatalyst concentration (1.5-3.5 g/l) and pH (3-11) on the photocatalytic process were also evaluated. The COD contents was completely removed for the biologically treated POME, paraquat dichloride, diazinon, natural dye from algal growth in Solaymanshah dam's after 4/5, 3/5, 3 and 2/5 h, respectively at optimum conditions (initial COD concentration of 300 mg/l, catalyst loading 2/5 g/l and pH of 3). Furthermore, the magnetic nanocomposite can be easily recovered and separated with an extra magnet with a small loss of 0.01-0.05 g/l corresponding to 0.4-2 %. After being reused for three times, the reduction of COD removal efficiency of the natural dyes, diazinon, paraquat dichloride and biologically treated POME was about 1, 1, 3 and 4%, respectively that confirmed the photocatalytic stability of nanocomposite.

AB - In this work, different recalcitrant organic compounds including biologically treated palm oil mill effluent (POME), diazinon and paraquat dichloride and natural dye from algal growth in Solaymanshah's dam was degraded using a novel highly efficient magnetically visible driven photocatalyst (boron doped TiO 2-SiO 2 cobalt ferrite) which was synthesized by a sol gel hydrothermal method. The prepared nanocomposites were characterized by UV-vis diffuse reflectance (DRS) spectroscopy, X-ray diffraction (XRD), photoluminescence (PL), Fourier transform infrared (FT-IR), field emission scanning electron microscopy (FESEM) and vibrating sample magnetometer (VSM) analyses. The results revealed that boron doped-TiO 2-SiO 2 cobalt ferrite nanocomposite not only expanded the response region to the visible light but also reduced recombination of the photoinduced e -/h + pairs. The effects of various parameters, such as COD concentrations (300-800 mg/l), photocatalyst concentration (1.5-3.5 g/l) and pH (3-11) on the photocatalytic process were also evaluated. The COD contents was completely removed for the biologically treated POME, paraquat dichloride, diazinon, natural dye from algal growth in Solaymanshah dam's after 4/5, 3/5, 3 and 2/5 h, respectively at optimum conditions (initial COD concentration of 300 mg/l, catalyst loading 2/5 g/l and pH of 3). Furthermore, the magnetic nanocomposite can be easily recovered and separated with an extra magnet with a small loss of 0.01-0.05 g/l corresponding to 0.4-2 %. After being reused for three times, the reduction of COD removal efficiency of the natural dyes, diazinon, paraquat dichloride and biologically treated POME was about 1, 1, 3 and 4%, respectively that confirmed the photocatalytic stability of nanocomposite.

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