Preparation of efficient visible-light-driven BiOBr/Bi2O3 heterojunction composite with enhanced photocatalytic activities

Wang, Qizhao; Jiao, Danhua; Lian, Juhong; Ma, Qiong; Yu, Jie; Huang, Haohao; Zhong, Jianxin; Li, Jianzhang

doi:10.1016/j.jallcom.2015.07.126

Cited by 83 publications

(15 citation statements)

References 39 publications

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“…PL analysis of photocatalysts can be applied to reflect the transportation and recombination of the photoinduced electron–hole pairs. It is generally believed that a lower PL intensity is an indication of a lower recombination rate of photoinduced electron–hole pairs . The PL spectra of BiOBr‐IL‐1, BiOBr‐IL‐2 and BiOBr‐IL‐3 samples obtained with an excitation wavelength of 360 nm are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

Nan

Huang

Zhou

et al. 2018

Applied Organom Chemis

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Porous BiOBr microspheres have been successfully synthesized through an ethylene glycol-assisted solvothermal method using reactive ionic liquids as templates and reactants during the synthetic process. The obtained samples were characterized using X-ray diffraction, scanning and transmission electron microscopies and X-ray photoelectron, energy-dispersive X-ray, Fourier transform infrared, diffuse reflectance and photoluminescence spectroscopies. The photocatalytic activities were evaluated using the degradation of rhodamine B and tetracycline under visible light irradiation. The photocatalytic efficiency of BiOBr photocatalyst synthesized using single-molecule ionic liquid as template is better than that of BiOBr obtained using polyionic liquid as template.A possible photocatalytic mechanism is also provisionally proposed. And the degradation rate using BiOBr-IL-1 was 2.74, 1.24 and 4.84 times higher than that using BiOBr-IL-2, BiOBr-IL-3 and BiOBr-KBr. The larger surface area and narrower energy band gap of BiOBr-IL-1 could improve the visible light harvesting ability and facilitate the separation of photogenerated electron-hole pairs and the photocatalysis process. This study affords a facile way to develop such novel photocatalysts with special morphology using ionic liquids.

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Section: Resultsmentioning

confidence: 99%

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

Nan

Huang

Zhou

et al. 2018

Applied Organom Chemis

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“…However, the kinetic coefficients of the h cycle under UV irradiation were still quite fast compared with the previous reports. [44][45][46][47] The phenomenon probably was because bismuth oxide and bismuth oxybromides are semiconductors, [48][49][50][51] which were able to degrade bromate continuously under UV light. The phenomenon provided another important reason for the introduction of UV irradiation, which was helpful for building a long-term bromate reduction system.…”

Section: The Inuence Of Dissolved Oxygen and The Sustainability Of Bmentioning

confidence: 99%

A novel zero valent metal bismuth for bromate removal: direct and ultraviolet enhanced reduction

2020

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“…Commonly, many researchers oen construct heterojunctions with other materials to improve performance, such as MoS 2 /Bi 2 O 2 CO 3 , 18 PPy/Bi 2 O 2 CO 3 , 19 BiOBr/ Bi 2 O 3 (ref. 20) and so on. Recently, nanometer-sized noble metal particles have been deposited on the various photocatalysts with this aim.…”

Section: Introductionmentioning

confidence: 97%

Pt nanoparticles decorated rose-like Bi₂O₂CO₃ configurations for efficient photocatalytic removal of water organic pollutants

et al. 2018

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Pt nanoparticles decorated with rose-like Bi2O2CO3 configurations were synthesized via a simple photoreduction method at room temperature. The structure, morphology, optical and electronic properties, and photocatalytic performance of the as-prepared materials were characterized. Compared to pure Bi2O2CO3, the Pt/Bi2O2CO3 photocatalysts show better performance in decomposing RhB, BPA and OTC under visible light (? > 420 nm). The enhanced photocatalytic activity of Pt/Bi2O2CO3 could be attributed to the modification in light absorption (? > 420 nm) charge migration and the separation of photo-generated electrons (e?) and holes (h+). Free radical trapping experiments demonstrated that the main active species of the catalytic reaction are different in decomposing RhB and BPA.publishersversionPeer reviewe

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Preparation of efficient visible-light-driven BiOBr/Bi2O3 heterojunction composite with enhanced photocatalytic activities

Cited by 83 publications

References 39 publications

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

A novel zero valent metal bismuth for bromate removal: direct and ultraviolet enhanced reduction

Pt nanoparticles decorated rose-like Bi₂O₂CO₃ configurations for efficient photocatalytic removal of water organic pollutants

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Preparation of efficient visible-light-driven BiOBr/Bi2O3 heterojunction composite with enhanced photocatalytic activities

Cited by 83 publications

References 39 publications

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

Ionic liquid‐assisted synthesis of porous BiOBr microspheres with enhanced visible light photocatalytic performance

A novel zero valent metal bismuth for bromate removal: direct and ultraviolet enhanced reduction

Pt nanoparticles decorated rose-like Bi2O2CO3 configurations for efficient photocatalytic removal of water organic pollutants

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Product

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Pt nanoparticles decorated rose-like Bi₂O₂CO₃ configurations for efficient photocatalytic removal of water organic pollutants