2020Digest Journal of Nanomaterials and BiostructuresOpen access

EFFECT OF pH ON PHOTOCATALYTIC ACTIVITIES OF BiOBr NANOMATERIALS SYNTHESIZED BY SONOCHEMICAL METHOD

P. PATIPHATPANYA, Prakasit Intaphong, Anukorn Phuruangrat, B. KUNTALUE, Phattranit Dumrongrojthanath, T. THONGTEM, S. THONGTEM

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Abstract

BiOBr nanomaterials were successfully synthesized in different solutions with the pH of 2–12 by sonochemical method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) results revealed the presence of pure tetragonal BiOBr nanomaterials. The photocatalytic activities of BiOBr nanomaterials were evaluated through the degradation of rhodamine B (RhB) under visible light irradiation. Clearly, the pH of precursor solution played an important role in photocatalytic activity. In this research, BiOBr flowers synthesized in a solution with the pH of 6 showed the highest photocatalytic efficiency of 99.05 % within 40 min.

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BiOBr nanomaterials were successfully synthesized in different solutions with the pH of 2–12 by sonochemical method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) results revealed the presence of pure tetragonal BiOBr nanomaterials. The photocatalytic activities of BiOBr nanomaterials were evaluated through the degradation of rhodamine B (RhB) under visible light irradiation. Clearly, the pH of precursor solution played an important role in photocatalytic activity. In this research, BiOBr flowers synthesized in a solution with the pH of 6 showed the highest photocatalytic efficiency of 99.05 % within 40 min.

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Available abstract

BiOBr nanomaterials were successfully synthesized in different solutions with the pH of 2–12 by sonochemical method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) results revealed the presence of pure tetragonal BiOBr nanomaterials. The photocatalytic activities of BiOBr nanomaterials were evaluated through the degradation of rhodamine B (RhB) under visible light irradiation. Clearly, the pH of precursor solution played an important role in photocatalytic activity. In this research, BiOBr flowers synthesized in a solution with the pH of 6 showed the highest photocatalytic efficiency of 99.05 % within 40 min.

Key concepts: Nanomaterials, Rhodamine B, Photocatalysis, X-ray photoelectron spectroscopy, Scanning electron microscope, Materials science, Nuclear chemistry, Tetragonal crystal system

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EFFECT OF pH ON PHOTOCATALYTIC ACTIVITIES OF BiOBr NANOMATERIALS SYNTHESIZED BY SONOCHEMICAL METHOD — Research Paper | ScholarLens