The enhanced peroxymonosulfate-assisted photocatalytic degradation of tetracycline under visible light by g-C3N4/Na-BiVO4 heterojunction catalyst and its mechanism

Kang, Jin Kyu; Tang, Yiwu; Wang, Min; Jin, Chongyue; Liu, Jiayun; Li, Siyan; Li, Zhilin; Zhu, Jiangwei

doi:10.1016/j.jece.2021.105524

Cited by 116 publications

(31 citation statements)

References 67 publications

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“…The photocatalytic efficiency of photocatalysts toward the removal of TC and OTC antibiotics has been previously studied [ 2 , 3 , 4 , 6 , 7 , 8 , 9 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. In this work, the BiVO 4 catalyst was used for the degradation of TC and OTC antibiotics under visible light and solar light.…”

Section: Resultsmentioning

confidence: 99%

“…Oxytetracycline (OTC) and tetracycline (TC) are the typical antibiotics widely used in human and veterinary medicine. In addition, these drugs were also used in agriculture, aquaculture, and other fields [ 4 , 5 , 6 , 7 , 8 , 9 ]. However, these drugs cause a serious problem to the environment [ 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, these drugs were also used in agriculture, aquaculture, and other fields [ 4 , 5 , 6 , 7 , 8 , 9 ]. However, these drugs cause a serious problem to the environment [ 4 , 5 , 6 , 7 , 8 , 9 ]. Therefore, the complete removal of these antibiotics from aqueous phases has become a major aim.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

2022

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The efficient degradation of a toxic antibiotic from an aqueous solution is essential for environmental protection. Our research aimed to fabricate a bismuth vanadate (BiVO4) catalyst via a facile hydrothermal method. The prepared catalyst exhibited a monoclinic phase with a band gap energy of 2.33 eV, indicating the excellent visible-light-active properties of a semiconductor. The photocatalytic performance of the synthesized BiVO4 catalyst was studied by determining the removal of tetracycline (TC) and oxytetracycline (OTC) antibiotics. After 240 min, under sunlight conditions, a high performance of 72% and 83% degradation of TC and OTC, respectively, was achieved. The photocatalytic degradation of the antibiotics correlates well with a first-order reaction, with a high rate constant of 0.0102 min−1. Photogenerated electrons and holes played an important role in the removal of the pollutant. After photocatalytic study, the structural stability of the prepared bismuth vanadate photocatalyst was confirmed. The photocatalyst provided a promising performance even after five successive runs. The result indicates the excellent cycling ability of the sample. The present work demonstrates a promising route for the preparation of a BiVO4 catalyst for the complete removal of toxic antibiotics in aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

2022

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“…In this regard, the photocatalytic process has captured widespread attention on organic pollutants degradation owing to its high efficiency, low costing, and especially saving energy [2][3][4][5][6][7]. This process is based on two simultaneous reactions: oxidation from photogenerated holes and reduction from photogenerated electrons.…”

Section: Introductionmentioning

confidence: 99%

“…The plethora of functionalities of BFO presents not only opportunities to study their fundamental physics offering potential applications in information storage, spintronics, sensors, and even in medical applications [6][7][8][9][10][11][12][13] but also an important kind of visible-light responsive photocatalyst for water splitting and degradation of organic pollutants [3,6,7,14]. Thanks to its narrow bandgap (2.1 to 2.8 eV) [9] and excellent chemical stability, it has attracted considerable attention.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Taazayet

Zouari

Hosni

et al. 2021

J Mater Sci: Mater Electron

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In the present work, pure BiFeO 3 and pure Bi 2 Fe 4 O 9 single phases were successfully synthesized by tailoring hydrothermal synthesis route. The structural and morphology analyses have been achieved by X-ray diffraction and by electron microscopy. Scanning and transmission electron microscopy images revealed a strong change in the morphology from agglomerated nanoparticles with sizes less than 10 nm for BiFeO 3 to plate-like particles with larger sizes (edges of 100 to 200 nm while a thickness of * 30 nm) for Bi 2 Fe 4 O 9 . Such a small size obtained for BFO nanoparticles has never been observed before for similar synthesis method without any added reagents, to the best of our knowledge. The photocatalytic activity of the as-prepared samples for degradation of methylene blue dye under sunlight irradiation shows a good efficiency. It reaches 61% and 83% after 3 h for BiFeO 3 and Bi 2 Fe 4 O 9 nanostructures, respectively. Despite a bigger size and higher bandgap, the better efficiency of Bi 2 Fe 4 O 9 compared to BiFeO 3 is explained by a much stronger absorption especially for light with energy higher than 2.65 eV.

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Constructing S‐scheme heterojunctions with tunable interfacial oxygen vacancy via UiO‐66‐NH₂‐derived ZrO_2‐x for efficient photocatalytic performance

Zhang,

Wang,

Han

et al. 2024

Applied Organom Chemis

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Defects engineering is significant for photocatalytic environment remediation. To this end, visible‐light‐driven α‐Fe2O3/ZrO2‐x S‐scheme heterojunction photocatalysts with optimal oxygen vacancy (Ov) defects are successfully synthesized via a two‐step method. Compared with pristine UiO‐66‐NH2‐derived ZrO2‐x and α‐Fe2O3, the heterojunction photocatalysts exhibit a wider range of visible light response and higher efficiency in separating photogenerated electron–hole pairs. Among them, the 5% α‐Fe2O3/ZrO2‐x sample shows the best photocatalytic performance to the degradation of tetracycline (TC) (89.3%), in which the pseudo‐first‐order kinetic rate constants are 8.20 and 16.75 times that of pristine ZrO2‐x and α‐Fe2O3, respectively. The outstanding photocatalytic degradation efficiency can be attributed to both the narrow‐bandgap ZrO2‐x with visible light response and the formation of α‐Fe2O3/ZrO2‐x S‐scheme heterojunctions. During the formation of heterojunctions, the concentration of oxygen vacancies (Ov) at the interface of α‐Fe2O3/ZrO2‐xdecreases monotonically with the increasing loading of α‐Fe2O3, thereby altering the electronic structure of the photocatalyst and forming the heterojunction firmly. In addition, the high stability implies the potential applications in fields of environment.

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The enhanced peroxymonosulfate-assisted photocatalytic degradation of tetracycline under visible light by g-C3N4/Na-BiVO4 heterojunction catalyst and its mechanism

Cited by 116 publications

References 67 publications

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Constructing S‐scheme heterojunctions with tunable interfacial oxygen vacancy via UiO‐66‐NH₂‐derived ZrO_2‐x for efficient photocatalytic performance

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The enhanced peroxymonosulfate-assisted photocatalytic degradation of tetracycline under visible light by g-C3N4/Na-BiVO4 heterojunction catalyst and its mechanism

Cited by 116 publications

References 67 publications

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Constructing S‐scheme heterojunctions with tunable interfacial oxygen vacancy via UiO‐66‐NH2‐derived ZrO2‐x for efficient photocatalytic performance

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Product

Resources

About

Constructing S‐scheme heterojunctions with tunable interfacial oxygen vacancy via UiO‐66‐NH₂‐derived ZrO_2‐x for efficient photocatalytic performance