Efficient degradation of tetracycline hydrochloride by photocatalytic ozonation over Bi2WO6

Lu, Tiecheng; Gao, Yan; Yang, Yang; Ming, Hongbo; Huang, Zhongcheng; Liu, Guodong; Zheng, Dandan; Zhang, Jinshui; Hou, Yidong

doi:10.1016/j.chemosphere.2021.131256

Cited by 98 publications

(24 citation statements)

References 60 publications

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“…In this process, ozone (O3) as an oxidant (E 0 = 2.07 eV) can trap electrons more efficiently for enhanced inhibition of electron-hole recombination. This induces the generation of more reactive oxygen species (ROS), such as superoxide (O2 •− ) and hydroxyl radical ( • OH) (E 0 = 2.8 eV) via photo-generated holes and ozonide ion radical ( • O3 − ) ( • O3/ • O3 − , 1.6 eV) mediated pathway [2,3]. Therefore, PhOx can overcome the drawback of the slow reaction rate of photocatalysis process and the low mineralization of ozonation system to improve the removal efficiency of pollutants [4].…”

Section: Introductionmentioning

confidence: 99%

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

Liu

Shi

Sans

et al. 2022

Journal of Environmental Chemical Engineering

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Section: Introductionmentioning

confidence: 99%

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

Liu

Shi

Sans

et al. 2022

Journal of Environmental Chemical Engineering

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“…Due to the presence of dimethylamine, phenoldiketone and tricarbonyl groups, tetracycline hydrochloride (TCH) is a typical amphoteric antibiotic [ 41 ]. Since the molecular structure of TCH is related to the pH condition, the degradation performance of Ag/CNQDs/g-C 3 N 4 on TCH under different pH conditions was further studied.…”

Section: Resultsmentioning

confidence: 99%

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

Sun

et al. 2023

Molecules

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In this paper, the photocatalytic degradation efficiency of typical antibiotics (norfloxacin (NOR), sulfamethoxazole (SMX) and tetracycline hydrochloride (TCH)) by Ag/CNQDs/g-C3N4 under visible light irradiation was studied. Various strategies were applied to characterize the morphology, structure and photochemical properties of the Ag/CNQDs/g-C3N4 composites. The superior photocatalytic activity of Ag/CNQDs/g-C3N4 was attributed to the wide light response range and the enhancement of interfacial charge transfer. At the same time, the effect of the influence factors (pH, Humic acid (HA) and coexisting ions) on the antibiotics degradation were also investigated. Furthermore, the electron spin resonance (ESR) technology, free radical quenching experiments, LC/MS and DFT theoretical calculations were applied to predict and identify the active groups and intermediates during the photocatalytic degradation process. In addition, Ag/CNQDs/g-C3N4 exhibited the obvious antibacterial effect to Escherichia coli due to the addition of Ag NPs. This study develops a new way for the removal of emerging antibiotic pollution from wastewaters.

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“…According to the above results, the possible TCH degradation paths were proposed as shown in Figure 12. Firstly, TCH dissociates into tetracycline (TC) corresponding to m/z 445 in the aqueous solution (Lu et al, 2021). Due to the produced active species easily attack the amine group, hydroxyl group and methyl group in TC, the mass spectra corresponding to m/z 419 and m/z 353 were identified as the products formed from detachment of these groups of TC molecule.…”

Section: Possible Degradation Pathwaymentioning

confidence: 99%

A Facile Fabrication of ZnFe2O4/Sepiolite Composite with Excellent Photocatalytic Performance on the Removal of Tetracycline Hydrochloride

et al. 2021

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The excellent photo-response of ZnFe2O4 in the visible light region makes it a promising catalyst, whereas some defects like serious particle agglomeration and easy recombination of photo-generated electron-hole pairs hinder its application. In this work, the ZnFe2O4/sepiolite (ZF-Sep) composites were synthesized using a co-precipitation method. The obtained ZF-Sep composites were characterized by XRD, SEM, TEM, FT-IR, XPS, BET, VSM and DRS. Moreover, the photocatalytic performance was evaluated by the tetracycline hydrochloride removal efficiency under simulated visible light illumination. The results displayed that the ZnFe2O4 with average sizes about 20 nm were highly dispersed on sepiolite nanofibers. All the composites exhibited better photocatalytic performance than pure ZnFe2O4 due to the synergistic effect of the improvement on the agglomeration phenomenon of ZnFe2O4 and the reduction on the recombination rate of photo-generated electrons and holes. The optimum removal efficiency was that of the ZF-Sep-11 composite, which reached 93.6% within 3 h. Besides, the composite exhibited an excellent stability and reusability. Therefore, ZF-Sep composite is a promising catalyst for the treatment of wastewater contained antibiotics.

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Efficient degradation of tetracycline hydrochloride by photocatalytic ozonation over Bi2WO6

Cited by 98 publications

References 60 publications

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

A Facile Fabrication of ZnFe2O4/Sepiolite Composite with Excellent Photocatalytic Performance on the Removal of Tetracycline Hydrochloride

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