Adsorption of BiOBr microspheres to rhodamine B and its influence on photocatalytic reaction

Liang, Congjie; Ma, Jian; Cao, Yixi; Zhang, Tai-Song; Yang, Chanyu; Wu, Yingfeng; Li, Huaming; Xu, Hui; Hua, Yingjie; Wang, Chongtai

doi:10.1016/j.chemosphere.2022.135320

Cited by 20 publications

(5 citation statements)

References 52 publications

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“…Two peaks at 1367 and 1284 cm −1 indicated the stretching vibrations of the C–O and C-bonds in the aromatic skeleton, respectively. 30 The characteristic peak located at 1386 cm −1 corresponded to the asymmetric stretching vibration of –COOH bonds, which is consistent with Fig. 1a, which demonstrated the successful preparation of BiOBr composites.…”

Section: Resultssupporting

confidence: 86%

“…The characteristic peak of BE50 at 657 cm −1 could be indexed to the swinging vibration of the aromatic C–H. 30 It can be seen that all samples displayed a wide transmittance peak at ca. 3460 and 1612 cm −1 , which was ascribed to the O–H tensile and flexural vibration of adsorbed water molecules, respectively.…”

Section: Resultsmentioning

confidence: 96%

“…514 cm −1 corresponded to the stretching vibration of the Bi-O bond, and the uctuation in peak intensity arose from the shi in the content of oxygen vacancies. The characteristic peak of BE50 at 657 cm −1 could be indexed to the swinging vibration of the aromatic C-H. 30 It can be seen that all samples displayed a wide transmittance peak at ca. 3460 and 1612 cm −1 , which was ascribed to the O-H tensile and exural vibration of adsorbed water molecules, respectively.…”

Section: Catalyst Morphology and Characterizationmentioning

confidence: 95%

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Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 96%

Section: Catalyst Morphology and Characterizationmentioning

confidence: 95%

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Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction

Yang,

Wang,

Tian

et al. 2024

J. Mater. Chem. A

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“…As shown in Figure 5b–5d, the peaks of BiOBr at 159.4 eV and 164.7 eV were attributed to Bi4f 7/2 and Bi4f 5/2 , respectively. Two BiOBr peaks at 68.3 eV and 69.2 eV were attributed to Br3d 5/2 and Br3d 3/2 , respectively [34] . Meanwhile, the characteristic peaks of Bi4f 7/2 and Bi4f 5/2 of CLB 0.45 correspond to 159.6 eV and 164.9 eV.…”

Section: Resultsmentioning

confidence: 93%

“…Two BiOBr peaks at 68.3 eV and 69.2 eV were attributed to Br3d 5/2 and Br3d 3/2 , respectively. [34] Meanwhile, the characteristic peaks of Bi4f 7/2 and Bi4f 5/2 of CLB 0.45 correspond to 159.6 eV and 164.9 eV. The peaks of 68.5 eV and 69.6 eV indicate the presence of Br3d 5/2 and Br3d 3/2 .…”

Section: Structural Characterizationmentioning

confidence: 92%

Synthesis of Chrysanthemum‐Like BiOBr Microspheres by Structure Induction of Chitosan for Enhancing Photocatalytic Activity

Geng,

Zhang,

Zhang

et al. 2023

ChemPhotoChem

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Photocatalysis is a green technology with important application prospects in environmental fields such as wastewater treatment. Here, we synthesized chrysanthemum‐like BiOBr microspheres (CLB0.45) under introduction of structure guide and soft‐template. Natural biomass chitosan (CS) in the precursor of BiOBr successfully suppressed the growth of both (001) and (102) lattice planes through solvent effect, and promote the expose of (110) lattice planes that dominated the photocatalytic performance. Significantly, the polymer chains regulated the nanosheets of BiOBr to accurately self‐assemble. The obtained CLB0.45 had narrower band gap and more active sites due to surface defects, and the photocatalysts have higher photo‐electron hole pairs separation efficiency. And the degradation performance towards RhB (99.7%, 30 min) of the CLB0.45 was increased, which was 4.6 times higher than that of pure BiOBr. The degradation rate of tetracycline (TC) also exhibited excellent (85.3%). The photodegradation mechanism of CLB0.45 was proposed and verified. In summary, the prepared CLB0.45 through structure guiding and soft‐template have a promising future in the photocatalytic purification of organic pollutants.

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High-performance visible-light responsive BiPO4@ZnWO4 photocatalyst for enhancing photodegradation characteristics

Wang,

Liu

et al. 2024

J Sol-Gel Sci Technol

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The rational construction of heterostructures plays a pivotal role in enhancing both the separation of photogenerated carriers in semiconductors and the photocatalytic activity. This paper successfully constructs a novel BiPO4@ZnWO4 p-n type heterojunction photocatalyst by hydrothermal and ultrasonic stirring methods. The BiPO4@ZnWO4 heterojunction exhibits outstanding photocatalytic performance, achieving a degradation e ciency of 99% for rhodamine B (RhB) under visible light illumination in just 40 min. Furthermore, its photocatalytic reaction rate constant is 3.9 and 96.51 times higher than that of pure ZnWO4 and BiPO4, respectively. Electrochemical characterization demonstrates a more robust photocurrent response and lower resistance in the composite sample, facilitating e cient transport of photogenerated carriers. In addition, the 20% BiPO4@ZnWO4 heterojunction also exhibits desirable photodegradation stability, maintaining a RhB removal rate above 80% even after 5 cycles. Within the context of the photocatalytic reaction system, the superoxide radical (•O2-) plays a key role, succeeded by the hydroxyl radical (•OH) and the photoinduced hole (h+). This paper provides a feasible p-n type heterojunction photocatalyst for the treatment of dyeing wastewater.

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Adsorption of BiOBr microspheres to rhodamine B and its influence on photocatalytic reaction

Cited by 20 publications

References 52 publications

Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction

Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction

Synthesis of Chrysanthemum‐Like BiOBr Microspheres by Structure Induction of Chitosan for Enhancing Photocatalytic Activity

High-performance visible-light responsive BiPO4@ZnWO4 photocatalyst for enhancing photodegradation characteristics

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Adsorption of BiOBr microspheres to rhodamine B and its influence on photocatalytic reaction

Cited by 20 publications

References 52 publications

Enhancement effect of oxygen vacancy on photocatalytic CO2 reduction

Enhancement effect of oxygen vacancy on photocatalytic CO2 reduction

Synthesis of Chrysanthemum‐Like BiOBr Microspheres by Structure Induction of Chitosan for Enhancing Photocatalytic Activity

High-performance visible-light responsive BiPO4@ZnWO4 photocatalyst for enhancing photodegradation characteristics

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Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction

Enhancement effect of oxygen vacancy on photocatalytic CO₂ reduction