کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8868820 | 1622537 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2-based nanoparticles
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2-based nanoparticles Photocatalytic inactivation of Vibrio fischeri using Fe2O3-TiO2-based nanoparticles](/preview/png/8868820.png)
چکیده انگلیسی
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 (0-5â¯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 à (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 (25-35â¯Â°C) and different photocatalyst dosage (0.1-2â¯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 1â¯g/L of 2.5â¯wt% Fe2O3-TiO2 were used, at 35â¯Â°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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Research - Volume 166, October 2018, Pages 497-506
Journal: Environmental Research - Volume 166, October 2018, Pages 497-506
نویسندگان
Hamed Baniamerian, Malihe Safavi, Merlin Alvarado-Morales, Panagiotis Tsapekos, Irini Angelidaki, Soheila Shokrollahzadeh,