Synthesis and characterization of Bi2O3/ZIF-67 nanocomposite integration with capacitive deionization system in the degradation tetracycline

Entezami, Negin; Farhadian, Mehrdad; Nazar, Ali Reza Solaimany; Tangestaninejad, Shahram

doi:10.1016/j.psep.2022.06.059

Cited by 24 publications

(3 citation statements)

References 55 publications

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“…With an increase in pollutant concentration, the constant availability of active sites leads to the presence of unadsorbed molecules, indicating saturation points in the adsorption process. Additionally, elevated initial concentrations contribute to increased solution turbidity, diminishing light penetration and active radicals production, thereby reducing photocatalytic degradation efficiency (Entezami, et al, 2022).…”

Section: Analysis Of Response Surface Plotsmentioning

confidence: 99%

“…MOFs are suitable candidates to use as a photocatalyst in composites, due to their unique properties such as high surface area, exceptional porosity, and chemical and structural tunability as well as their good optical properties. Entezami et al have reported that the BET surface area of Bi2O3 was increased from 5.675 to 535.5 m 2 /g by incorporation of ZIF-67 in the binary composite (Entezami, et al, 2022). Askari et al have synthesized a ternary composite of CuWO4/Bi2S3/ZIF67 MOFs via the hydrothermal method and then used it for photocatalytic degradation of antibiotics.…”

Section: Introductionmentioning

confidence: 99%

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Oil well produced water pollutants photodegradation using an innovative double Z-scheme ternary heterostructure of MIL-101(Cr)/Fe3O4-SiO2/nanorod-graphitic carbon nitride

Azmoon,

farhadian,

pendashteh

et al. 2024

Preprint

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An innovative ternary heterostructure, MIL-101(Cr)/Fe3O4-SiO2/nanorod-graphitic carbon nitride (MIL-Cr/F@S/nr-GCN), was synthesized by hydrothermal technique. Comprehensive physiochemical characterizations were conducted to elucidate the structural and optical properties. The synthesized photocatalysts were evaluated for adsorption and photodegradation of oil well produced water pollutants. Remarkably, the ternary heterostructure composite with 20 wt% of nr-GCN exhibited superior photocatalytic performance compared to nr-GCN and the MIL-Cr/F@S binary composite. Under visible-light illumination, the maximum removal efficiency of chemical oxygen demand for synthetic oil well produced water reached 97.4% under optimized conditions (pH 4, illumination time 90 min, photocatalyst dosage 0.6 g/L, and pollutant initial concentration 754 mg/L). Adsorption studies revealed adherence to the pseudo-second-order kinetic and Freundlich isotherm models The ternary composite displayed degradation rates 2.8 and 2 times higher than nr-GCN and MIL-Cr/F@S, respectively. This enhanced activity was attributed to the double Z-scheme configuration, providing a high specific surface area (653 m2/g), an appropriate bandgap energy (1.6 eV), and efficient charge carrier separation. Moreover, the ternary photocatalysts demonstrated excellent reusability over five cycles without Cr ions leaching into the water. These findings underscore the potential of the novel ternary heterostructure as a green and robust photocatalyst for oil well produced water treatment.

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Section: Analysis Of Response Surface Plotsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oil well produced water pollutants photodegradation using an innovative double Z-scheme ternary heterostructure of MIL-101(Cr)/Fe3O4-SiO2/nanorod-graphitic carbon nitride

Azmoon,

farhadian,

pendashteh

et al. 2024

Preprint

Self Cite

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“…More recently, bismuth-based semiconductors have good prospects with unique light absorption that can enhance photocatalytic activity significantly. Such as Bi 2 MoO 6 (Chen et al, 2022b;Hajiali et al, 2022), Bi 2 O 3 (Chen et al, 2022c;Entezami et al, 2022), BiVO 4 (Kang et al, 2019;Xu et al, 2021), Bi 2 WO 6 (Li et al, 2022a;Li et al, 2022b), BiOBr (Wang et al, 2022a;Dou et al, 2022). As a novel photocatalyst, BiOBr consists of positive [Bi 2 O 2 ] 2+ and negative halogen atoms (Br 2 2− ) (Lee et al, 2020), while forming unique layered structures (Gao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of tetracycline antibiotic over a flower-like S-doped BiOBr: Performance, mechanism insight and toxicity assessment

Huang

Li²,

Hao³

et al. 2022

Front. Nanotechnol.

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A new catalyst of S-BiOBr flower-like morphology was synthesized by simple pyrolysis and further used for photocatalytic degradation of TC. Phase structure analysis, elemental analysis and micromorphological analysis confirmed that S doping has a reinforcing effect on the polarization between the [Bi2O2S]2+ and [Br2]2- layers and is conducive to interlayer polarization and rapid charge transfer. In addition, its unique petal morphology is more favorable to the adsorption of contaminants on its surface and accelerates the reaction of catalyst surfactant with contaminants. It was also found that S-BiOBr degrades TC significantly better than single BiOBr@HCs, with up to 99.1% in 60 min illumination. In addition, the S-BiOBr catalyst has good reusability in antibiotic degradation. The results of photocatalytic mechanism analysis show that free radical O2− plays a major role in the photodegradation of organic model pollutants. Intermediates in TC degradation were identified, and their potential degradation pathways were prospected, and the toxicity development of TC in the degradation process was analyzed by toxicity assessment software. The S-BiOBr photocatalytic system developed in this paper provides a new idea for effective modification of bismuth-based semiconductors and has important guiding significance for future water purification.

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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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Synthesis and characterization of Bi2O3/ZIF-67 nanocomposite integration with capacitive deionization system in the degradation tetracycline

Cited by 24 publications

References 55 publications

Oil well produced water pollutants photodegradation using an innovative double Z-scheme ternary heterostructure of MIL-101(Cr)/Fe3O4-SiO2/nanorod-graphitic carbon nitride

Oil well produced water pollutants photodegradation using an innovative double Z-scheme ternary heterostructure of MIL-101(Cr)/Fe3O4-SiO2/nanorod-graphitic carbon nitride

Photocatalytic degradation of tetracycline antibiotic over a flower-like S-doped BiOBr: Performance, mechanism insight and toxicity assessment

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

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