Preparation and Photocatalytic Properties of AgBr/TiO2 Nanofibers

Abstract

Abstract: AgBr/TiO₂ nanofibers were fabricated by a combination of hydrothermal and electrospinning methods. Ti(OC₄H₉)₄/PVP nanofibers were prepared by electrospinning method using Ti(OC₄H₉)₄, PVP and absolute ethanol as raw materials. TiO₂ nanofibers were obtained after calcination at 500 ℃ to 1 000 ℃. AgBr nanoparticles were immobilized on TiO₂ nanofibers under hydrothermal condition. AgBr/TiO₂ nanofibers were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and differential thermo-thermogravimetric (TG-DTA) analysis respectively. The photocatalytic property of TiO₂ and AgBr/TiO₂ nanofibers were studied using methyl orange(MO) as degradation substrate to simulate dye waste water. The results indicate that the TiO₂ nanofibers with the additive amount of 100 mg have better photocatalytic properties after calcined at 800 ℃. The photocatalytic degradation rate of AgBr/TiO₂ nanofibers is found to be higher than that of the TiO₂ nanofibers under the same conditions. The degradation rate of methyl orange by AgBr/TiO₂ nanofibers is about 96%.

Key words: AgBr/TiO₂ nanofiber, photocatalytic property, electrospinning method, degradation rate

CLC Number:

TB34
O643.36

SUN Nan, CHEN Peng, REN Youliang. Preparation and Photocatalytic Properties of AgBr/TiO₂ Nanofibers[J]. Journal of Synthetic Crystals, 2021, 50(1): 130-137.

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Preparation and Photocatalytic Properties of AgBr/TiO₂ Nanofibers

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