A new family of BiO(ClxBr1-x) visible light sensitive photocatalysts

Sanaa Shenawi-Khalil; Vladimir Uvarov; Yulia Kritsman; Ella Menes; Inna Popov; Yoel Sasson

doi:10.1016/j.catcom.2011.03.014

A new family of BiO(Cl_xBr_1-x) visible light sensitive photocatalysts

Sanaa Shenawi-Khalil
, Vladimir Uvarov^*
, Yulia Kritsman
, Ella Menes
, Inna Popov
, Yoel Sasson

^*Corresponding author for this work

Institute of Chemistry

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

149 Scopus citations

Abstract

A new family of BiO(Cl_xBr_1-x) photocatalysts have been synthesized by a hydrothermal method. The photocatalytic activity of the new material was measured on the degradation of Rhodamine B (RhB) and Acetophenone (AP) and photooxidation of potassium iodide in water under UV-vis and visible light (λ 420 nm) irradiations. In comparison to Degussa P25, the new photoactive material with x = 0.5 demonstrated 3 times higher rate in removing aqueous RhB under visible light irradiation. A morphology, chemical composition and crystalline structure of BiO(Cl_xBr_1-x) were characterized using scanning electron microscopy and powder X-ray diffraction. The values of their unit cell parameters depend on Cl/Br ratio and they change according to the Vegard's law.

Original language	English
Pages (from-to)	1136-1141
Number of pages	6
Journal	Catalysis Communications
Volume	12
Issue number	12
DOIs	https://doi.org/10.1016/j.catcom.2011.03.014
State	Published - 1 Jul 2011

Keywords

BiOCl-BiOBr
Bismuth Oxyhalides
Photocatalysis
Photocatalytic degradation
Rietveld refinement
UV-vis visible light irradiations

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10.1016/j.catcom.2011.03.014

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title = "A new family of BiO(ClxBr1-x) visible light sensitive photocatalysts",

abstract = "A new family of BiO(ClxBr1-x) photocatalysts have been synthesized by a hydrothermal method. The photocatalytic activity of the new material was measured on the degradation of Rhodamine B (RhB) and Acetophenone (AP) and photooxidation of potassium iodide in water under UV-vis and visible light (λ 420 nm) irradiations. In comparison to Degussa P25, the new photoactive material with x = 0.5 demonstrated 3 times higher rate in removing aqueous RhB under visible light irradiation. A morphology, chemical composition and crystalline structure of BiO(ClxBr1-x) were characterized using scanning electron microscopy and powder X-ray diffraction. The values of their unit cell parameters depend on Cl/Br ratio and they change according to the Vegard's law.",

keywords = "BiOCl-BiOBr, Bismuth Oxyhalides, Photocatalysis, Photocatalytic degradation, Rietveld refinement, UV-vis visible light irradiations",

author = "Sanaa Shenawi-Khalil and Vladimir Uvarov and Yulia Kritsman and Ella Menes and Inna Popov and Yoel Sasson",

year = "2011",

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doi = "10.1016/j.catcom.2011.03.014",

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AU - Shenawi-Khalil, Sanaa

AU - Uvarov, Vladimir

AU - Kritsman, Yulia

AU - Menes, Ella

AU - Popov, Inna

AU - Sasson, Yoel

PY - 2011/7/1

Y1 - 2011/7/1

N2 - A new family of BiO(ClxBr1-x) photocatalysts have been synthesized by a hydrothermal method. The photocatalytic activity of the new material was measured on the degradation of Rhodamine B (RhB) and Acetophenone (AP) and photooxidation of potassium iodide in water under UV-vis and visible light (λ 420 nm) irradiations. In comparison to Degussa P25, the new photoactive material with x = 0.5 demonstrated 3 times higher rate in removing aqueous RhB under visible light irradiation. A morphology, chemical composition and crystalline structure of BiO(ClxBr1-x) were characterized using scanning electron microscopy and powder X-ray diffraction. The values of their unit cell parameters depend on Cl/Br ratio and they change according to the Vegard's law.

AB - A new family of BiO(ClxBr1-x) photocatalysts have been synthesized by a hydrothermal method. The photocatalytic activity of the new material was measured on the degradation of Rhodamine B (RhB) and Acetophenone (AP) and photooxidation of potassium iodide in water under UV-vis and visible light (λ 420 nm) irradiations. In comparison to Degussa P25, the new photoactive material with x = 0.5 demonstrated 3 times higher rate in removing aqueous RhB under visible light irradiation. A morphology, chemical composition and crystalline structure of BiO(ClxBr1-x) were characterized using scanning electron microscopy and powder X-ray diffraction. The values of their unit cell parameters depend on Cl/Br ratio and they change according to the Vegard's law.

KW - BiOCl-BiOBr

KW - Bismuth Oxyhalides

KW - Photocatalysis

KW - Photocatalytic degradation

KW - Rietveld refinement

KW - UV-vis visible light irradiations

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JO - Catalysis Communications

JF - Catalysis Communications

IS - 12

ER -

A new family of BiO(Cl_xBr_1-x) visible light sensitive photocatalysts

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Keywords

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