In situ fluorine migration in ZIF-67/F-TiO2 Z-type heterojunction and its photocatalytic degradation mechanism of tetracycline hydrochloride

Zhang, Mingyuan; Wang, Jing; Yuan, Xiaoping; Zhang, Yuexing; Wang, Liping; Xie, Yuke; Xing, Y. M.; Hou, Chun‐Li

doi:10.1016/j.apsusc.2023.157881

Applied Surface Science

2023

DOI: 10.1016/j.apsusc.2023.157881

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In situ fluorine migration in ZIF-67/F-TiO2 Z-type heterojunction and its photocatalytic degradation mechanism of tetracycline hydrochloride

Mingyuan Zhang

Jing Wang

Xiaoping Yuan

et al.

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Cited by 22 publications

References 55 publications

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Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Gao,

Angadi,

Wang

et al. 2024

Advanced Sustainable Systems

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Herein, a series of CoCr2O4/wt%NiFe2O4(CCO/wt%NFO) composites are successfully synthesized by a simple solution combustion method combined with mechanical grinding techniques. The preparation of CCO/wt%NFO composites result in an estimation of its photocatalysis performance by removing tetracycline hydrochloride (TC) as a model of antibiotic pollutants. The results show that the percentage of NFO by mass have a great influence on the morphology and the photocatalysis performance of CCO/wt%NFO composites. Superior photocatalysis performance is observed in CCO/25%NFO composites prepared at percentage of NFO is 25%. The photocatalyst used with CCO/25%NFO composites result in a removal ratio of 81% for TC. The generation of hydroxyl radical (•OH), superoxide anion radical (•O2−) and holes (h+) is largely responsible for degrading TC through photocatalysis in the presence of CCO/wt%NFO composites. The optimal operating conditions involve the initial concentration of TC and pH of TC being 50 mg L−1 and pH = 13, respectively. Furthermore, CCO/wt%NFO is highly reusable and stable during the photocatalytic removal process. The degradation pathway, toxicity, and photocatalytic mechanism of CCO/25%NFO composites for the degradation of TC are extensively examined through mass spectrometry, toxicity analysis, and energy band theory.

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Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Gao,

Angadi,

Wang

et al. 2024

Advanced Sustainable Systems

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Enhanced Photocatalytic Activity of Anatase/Rutile‐Mixed Phase Titanium Dioxide Nanoparticles Annealed with Polyethylene Glycol at Low Temperatures in Aluminum Foil‐Covered Combustion Boats

Kawakami,

Matsumoto,

Yanagiya

et al. 2024

Physica Status Solidi (a)

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A facile carbon‐doping process is proposed to enhance the photocatalytic activity of anatase/rutile‐mixed phase TiO2 nanoparticles using polyethylene glycol (PEG). The TiO2‐PEG composite is loaded into a boat and covered tightly with Al foil to increase the pressure inside that boat during annealing. The boat is annealed for 1 h at different temperatures and PEG ratios. The annealing with 30% PEG at 300 °C enhances the decomposition of organic pollutants and bacterial inactivation under 405 nm light compared to the annealing without Al films. This annealing causes 2.5–3% carbon doping, introduces more oxygen vacancies, and converts PEG into organic compounds rich in CC bond components. These modifications of TiO2 can be attributed to carbon‐centered radicals produced from PEG during annealing. The modifications change the band structure to enhance the photogenerated carrier concentration responsible for the photocatalytic activity. The carbon doping narrows the anatase and rutile bandgaps, allowing the anatase phase to absorb 405 nm light. The introduced oxygen vacancies increase the electron‐trapping sites and raise the adsorbed oxygen groups enhancing the upward band bending and the depletion layer depth at the surface. The PEG‐converted compounds can transfer photogenerated electrons within the compounds to the TiO2 conduction band.

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Synthesis of Mn-ZIF-67 for efficient degradation of tetracycline

Zhu,

Shen

et al. 2024

J Mater Cycles Waste Manag

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In situ fluorine migration in ZIF-67/F-TiO2 Z-type heterojunction and its photocatalytic degradation mechanism of tetracycline hydrochloride

Cited by 22 publications

References 55 publications

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Enhanced Photocatalytic Activity of Anatase/Rutile‐Mixed Phase Titanium Dioxide Nanoparticles Annealed with Polyethylene Glycol at Low Temperatures in Aluminum Foil‐Covered Combustion Boats

Synthesis of Mn-ZIF-67 for efficient degradation of tetracycline

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In situ fluorine migration in ZIF-67/F-TiO2 Z-type heterojunction and its photocatalytic degradation mechanism of tetracycline hydrochloride

Cited by 22 publications

References 55 publications

Novel n–n Type CoCr2O4/NiFe2O4 Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Novel n–n Type CoCr2O4/NiFe2O4 Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Enhanced Photocatalytic Activity of Anatase/Rutile‐Mixed Phase Titanium Dioxide Nanoparticles Annealed with Polyethylene Glycol at Low Temperatures in Aluminum Foil‐Covered Combustion Boats

Synthesis of Mn-ZIF-67 for efficient degradation of tetracycline

Contact Info

Product

Resources

About

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation