Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2 -based nanoparticles

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2 -based nanoparticles. / Baniamerian, Hamed; Safavi, Malihe; Alvarado-Morales, Merlin; Tsapekos, Panagiotis; Angelidaki, Irini; Shokrollahzadeh, Soheila.

In: Environmental Research, Vol. 166, 2018, p. 497-506.

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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@article{2b77d66b529e45ea85d689710fddf34a,
title = "Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2 -based nanoparticles",
abstract = "Biofouling is a major problem in water membrane processes, especially in seawater reverse osmosis plants. Inactivation of Vibrio fischeri (a well-known marine bacterium forming biofilm) through photocatalysis via visible light was investigated in this work using active Fe2O3-TiO2 nanoparticles. Five Fe2O3-TiO2 photocatalysts with different weight percentage of Fe2O3 (0–5 wt{\%}) were synthesized using an ultrasonic-assisted co-precipitation method. The photocatalysts were characterized by powder X-ray diffraction (XRD), BET surface area, transmission electron {\AE} (TEM) plus selected area electron diffraction (SAED) patterns, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and diffuse-reflectance spectroscopy (DRS). Based on the design of experiments, the synthesized photocatalysts were tested for inactivation of V. fischeri under visible light irradiation at different temperatures (25–35 °C) and different photocatalyst dosage (0.1–2 g/L). The photocatalytic microbial inactivation experiments were performed in artificial seawater appropriate for growth of the marine bacterium. The results revealed that the highest inactivation efficiency of V. fischeri was achieved when 1 g/L of 2.5 wt{\%} Fe2O3-TiO2 were used, at 35 °C. Photocatalytic inactivation of microorganisms using visible light-driven Fe2O3-TiO2 photocatalysts, could introduce an innovative green method in pretreatment units of reverse osmosis plants to control the membrane biofouling.",
keywords = "Seawater pre-treatment, Fe2O3-TiO2 nano-photocatalyst, Visible lights, Marine bacteria, Biofouling",
author = "Hamed Baniamerian and Malihe Safavi and Merlin Alvarado-Morales and Panagiotis Tsapekos and Irini Angelidaki and Soheila Shokrollahzadeh",
year = "2018",
doi = "10.1016/j.envres.2018.06.011",
language = "English",
volume = "166",
pages = "497--506",
journal = "Environmental Research",
issn = "0013-9351",
publisher = "Academic Press",

}

RIS

TY - JOUR

T1 - Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2 -based nanoparticles

AU - Baniamerian, Hamed

AU - Safavi, Malihe

AU - Alvarado-Morales, Merlin

AU - Tsapekos, Panagiotis

AU - Angelidaki, Irini

AU - Shokrollahzadeh, Soheila

PY - 2018

Y1 - 2018

N2 - Biofouling is a major problem in water membrane processes, especially in seawater reverse osmosis plants. Inactivation of Vibrio fischeri (a well-known marine bacterium forming biofilm) through photocatalysis via visible light was investigated in this work using active Fe2O3-TiO2 nanoparticles. Five Fe2O3-TiO2 photocatalysts with different weight percentage of Fe2O3 (0–5 wt%) were synthesized using an ultrasonic-assisted co-precipitation method. The photocatalysts were characterized by powder X-ray diffraction (XRD), BET surface area, transmission electron Æ (TEM) plus selected area electron diffraction (SAED) patterns, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and diffuse-reflectance spectroscopy (DRS). Based on the design of experiments, the synthesized photocatalysts were tested for inactivation of V. fischeri under visible light irradiation at different temperatures (25–35 °C) and different photocatalyst dosage (0.1–2 g/L). The photocatalytic microbial inactivation experiments were performed in artificial seawater appropriate for growth of the marine bacterium. The results revealed that the highest inactivation efficiency of V. fischeri was achieved when 1 g/L of 2.5 wt% Fe2O3-TiO2 were used, at 35 °C. Photocatalytic inactivation of microorganisms using visible light-driven Fe2O3-TiO2 photocatalysts, could introduce an innovative green method in pretreatment units of reverse osmosis plants to control the membrane biofouling.

AB - Biofouling is a major problem in water membrane processes, especially in seawater reverse osmosis plants. Inactivation of Vibrio fischeri (a well-known marine bacterium forming biofilm) through photocatalysis via visible light was investigated in this work using active Fe2O3-TiO2 nanoparticles. Five Fe2O3-TiO2 photocatalysts with different weight percentage of Fe2O3 (0–5 wt%) were synthesized using an ultrasonic-assisted co-precipitation method. The photocatalysts were characterized by powder X-ray diffraction (XRD), BET surface area, transmission electron Æ (TEM) plus selected area electron diffraction (SAED) patterns, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and diffuse-reflectance spectroscopy (DRS). Based on the design of experiments, the synthesized photocatalysts were tested for inactivation of V. fischeri under visible light irradiation at different temperatures (25–35 °C) and different photocatalyst dosage (0.1–2 g/L). The photocatalytic microbial inactivation experiments were performed in artificial seawater appropriate for growth of the marine bacterium. The results revealed that the highest inactivation efficiency of V. fischeri was achieved when 1 g/L of 2.5 wt% Fe2O3-TiO2 were used, at 35 °C. Photocatalytic inactivation of microorganisms using visible light-driven Fe2O3-TiO2 photocatalysts, could introduce an innovative green method in pretreatment units of reverse osmosis plants to control the membrane biofouling.

KW - Seawater pre-treatment

KW - Fe2O3-TiO2 nano-photocatalyst

KW - Visible lights

KW - Marine bacteria

KW - Biofouling

U2 - 10.1016/j.envres.2018.06.011

DO - 10.1016/j.envres.2018.06.011

M3 - Journal article

VL - 166

SP - 497

EP - 506

JO - Environmental Research

JF - Environmental Research

SN - 0013-9351

ER -