One-pot synthesis of Bismuth Oxyhalide/Oxygen-rich bismuth oxyhalide Heterojunction and its photocatalytic activity

Liu, Zhangsheng; Ran, Huashen; Niu, Jinghui; Feng, Peizhong; Zhu, Yabo

doi:10.1016/j.jcis.2014.06.020

Cited by 35 publications

(8 citation statements)

References 33 publications

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“…6 To date, photocatalytic technologies are widely applied because of their potential capability to completely degrade azo dye molecules into mineralized end-products, such as CO 2 and H 2 O. 8 However, TiO 2 can only be activated by UV irradiation (l < 400 nm) because of its relatively wide band gap (3.2 eV), which comprises less than 5% of the solar spectrum. 8 However, TiO 2 can only be activated by UV irradiation (l < 400 nm) because of its relatively wide band gap (3.2 eV), which comprises less than 5% of the solar spectrum.…”

Section: Introductionmentioning

confidence: 99%

One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

Men

Liu

et al. 2015

RSC Adv.

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Ag-modified LaMnO 3 -graphene nanocomposites were successfully synthesized by the sol-gel technique.The nanocomposites were characterized by X-ray diffraction, field-emission scanning electron microscopy with energy dispersive spectrometer, transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller surface area analysis and photoluminescence analysis. Highefficiency degradation of Direct Green BE under UV-vis light was achieved for Ag/LaMnO 3 -graphene as photocatalyst. The enhancement of UV-vis photocatalytic activity can be attributed to the high separation efficiency of photoinduced electron-hole pairs resulting from the excellent conductivity of Ag in composites and the formation of multistage drill way, which can promote the adsorption of organic dyes and improve the transfer efficiency of the photocatalytic process. The photocatalytic mechanism was studied by adding hydroxyl radical (cOH), superoxide radical (cO 2À ), and active hole (h + ) scavengers. The results confirmed that h + generated in Ag/LaMnO 3 -graphene played a key role in photocatalysis, with the assistance of cOH. By contrast, cO 2À had the least influence on the process.

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Section: Introductionmentioning

confidence: 99%

One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

Men

Liu

et al. 2015

RSC Adv.

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“…The potentials of the CB and VB edges of BiOBr and Bi3.84W0.16O6.24 were evaluated by Mulliken electronegativity theory [19,20]:…”

Section: The Proposed Mechanismmentioning

confidence: 99%

Synthesis and properties of photocatalysts for the high degradation of sulfadiazine

Pei

2021

Eur J Chem

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In this study, it was discovered for the first time that the BiOBr/Bi3.84W0.16O6.24 catalyst can efficiently degrade sulfadiazine (SDZ). Multiple techniques, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis diffuse reflection spectroscopy (DRS) were applied to research the structures, morphology and photocatalytic properties of as-prepared samples. In addition, the effect of different synthesis pH environment and initial SDZ solution pH on the catalyst degradation efficiency were discussed. The BiOBr/Bi3.84W0.16O6.24 catalyst synthesized under the condition of pH = 7 exhibited excellent photocatalytic activity for photodegradation of SDZ of 91% within 120 min under simulated solar light irradiation. Also, the roles of the radical species have been studied, and the ·O2- and h+ were proved to dominate the photocatalytic process. Based on the experimental results, the photocatalytic mechanism was proposed.

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“…Different bismuth-containing semiconductors have similar layered structures, which makes the preparation of heterojunctions between two bismuth-containing photocatalysts easy. Many composite photocatalysts of this kind have been reported in recent years; e.g., Bi2O3-BiVO4 [50][51][52], Bi2O3-Bi2WO6 [53], Bi2O3/Bi2SiO5 [54], BiOBr/Bi24O31Br10 [55], BiOI/BiOBr and BiOCl/BiOI [56,57], BiOCl/BiVO4 [58], BiOI/Bi2O2CO3 [59,60], Bi2O3-Bi2S3 [61,62], BiVO4/Bi2O2CO3 [63], and Bi2O2CO3/ Bi2MoO6 [64], BiOI/Bi2WO6 [65], β-Bi2O3-BiOI [66], Bi-OI/Bi2MoO6 [67] and BiVO4/Bi2WO6 [68].…”

Section: Heterojunctions Between Two Bismuth-containing Semiconductorsmentioning

confidence: 99%

Recent advances in bismuth-containing photocatalysts with heterojunctions

Chen

Liu

et al. 2016

Chinese Journal of Catalysis

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One-pot synthesis of Bismuth Oxyhalide/Oxygen-rich bismuth oxyhalide Heterojunction and its photocatalytic activity

Cited by 35 publications

References 33 publications

One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

Synthesis and properties of photocatalysts for the high degradation of sulfadiazine

Recent advances in bismuth-containing photocatalysts with heterojunctions

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One-pot synthesis of Bismuth Oxyhalide/Oxygen-rich bismuth oxyhalide Heterojunction and its photocatalytic activity

Cited by 35 publications

References 33 publications

One-pot synthesis of Ag-modified LaMnO3–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

One-pot synthesis of Ag-modified LaMnO3–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

Synthesis and properties of photocatalysts for the high degradation of sulfadiazine

Recent advances in bismuth-containing photocatalysts with heterojunctions

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Product

Resources

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One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye

One-pot synthesis of Ag-modified LaMnO₃–graphene hybrid photocatalysts and application in the photocatalytic discoloration of an azo-dye