Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

Song, Wandi; Zhao, Jiang-hua; Xie, Xiaolin; Liu, Wang; Liu, Shuxia; Chang, Haibo; Wang, Chengyu

doi:10.1039/d1ra00941a

Cited by 34 publications

(7 citation statements)

References 58 publications

(57 reference statements)

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“…For the elimination of basic yellow 28 (BY28) and basic blue 41 (BB41), Boumaza et al used activated carbon made from wild olive stones [ 23 ]. To eliminate ciprofloxacin, Song et al made biochar from agricultural waste corn straw and combined it with BiOBr [ 24 ]. Combining photocatalyst with adsorbent would synergize the dual advantages from each component [ 25 – 27 ].…”

Section: Introductionmentioning

confidence: 99%

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Farouq

2022

J Fluoresc

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The MB and MR removal process by two mechanisms of adsorption using rice straw (absence of UV light) and photodegradation on TiO2 surfaces was investigated. MB and MR removal efficiency were further intensified upon the sequential operation of adsorption followed by photocatalytic degradation over TiO2 under visible light irradiation. The TiO2 was used to remove methylene blue (MB) and Maxilon Red (MR) dye from aqueous media by continuous mode at 25 ± 2 °C, at pH 6.8 ± 0.2. Photo-illumination study revealed 75.81 and 65.51% MB and MR removal with the dose of 1 g/L TiO2 with an initial concentration of 5 mg/L within 120 min. This study can be deemed of potential applications for the removal of MB and MR dyes on an industrial level using the synergistic adsorption-photocatalytic oxidation approach. A probable photodegradation mechanism was proposed.

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Section: Introductionmentioning

confidence: 99%

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Farouq

2022

J Fluoresc

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“…Although it has a certain response to the visible light of near‐ultraviolet light, the utilization rate of sunlight is still not high, and the recombination ratio of photogenerated electron–hole pairs is still large. [ 29–31 ]…”

Section: Introductionmentioning

confidence: 99%

“…Although it has a certain response to the visible light of nearultraviolet light, the utilization rate of sunlight is still not high, and the recombination ratio of photogenerated electron-hole pairs is still large. [29][30][31] Therefore, BiOI/Fe 2 O 3 /BiOBr composite photocatalytic material was synthesized by the solvothermal method in this paper. The activity of BiOI/Fe 2 O 3 /BiOBr was studied by degrading tetracycline under simulated sunlight irradiation, and it was used to degrade other antibiotics and organic dyes in water, which showed good photocatalytic ability.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Z‐scheme spherical BiOI/Fe₂O₃/BiOBr for water pollution treatment

Jing

Gao

Wang

et al. 2022

Applied Organom Chemis

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Tetracycline drugs play a very important role in medical production and animal husbandry, but their residues are difficult to be naturally degraded in water environment, which causes a certain threat to human health. In this paper, the BiOI/Fe 2 O 3 /BiOBr composite photocatalytic material was successfully prepared to degrade tetracycline. The morphology and structure of the material were characterized by XRD, SEM, TEM, EDX, FT-IR, UV-vis DRS, PL, EIS, photocurrent response, BET, and TOC, and the effect of the material on the degradation of tetracycline under simulated sunlight was investigated. The results showed that when the mass of BiOI/Fe 2 O 3 and BiOBr was 1:1, reacted at 160 C for 16 h, BiOI/Fe 2 O 3 /BiOBr has the best degradation effect on tetracycline. The degradation rate of tetracycline can reach 85% in 180 min, and its kinetic rate constant is 2.16 and 1.8 times that of single BiOI and BiOI/ Fe 2 O 3 , respectively. Based on the capture experiment of active substances, a Z-scheme catalytic mechanism is proposed to analyze the degradation process of tetracycline, and BiOI/Fe 2 O 3 /BiOBr also showed a certain photocatalytic activity to other antibiotics and organic dyes in water.

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“…An essential consideration when optimizing conditions for photocatalysis activity is photocatalysis kinetics, which can provide valuable insights into the reaction rate constant, significantly influencing the overall reaction rate (Song et al 2021). The pseudo-firstorder and pseudo-second-order reaction kinetics model technique is used to study the kinetics of photocatalysis.…”

Section: Photocatalytic Studiesmentioning

confidence: 99%

Efficient Removal of Pb(II) Ion Using Tio2/Zno/Sio2 Nanocomposite from Aqueous Solutions Via Adsorption-Photocatalysis Process

Hadian,

Alni,

Patah

et al. 2024

JSM

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This research aims to investigate the usage of a TiO2/ZnO/SiO2 (TZS) composite prepared via a 24-h hydrothermal process at 180° C to remove Pb(II) through adsorption-photocatalysis. Pb(II) exposure has known health risks, making this study significant. The research explores the impact of pH, the nanocomposite quantity, and contact time in the process. Adsorption-photocatalysis was carried out in the dark for 60 min, followed by irradiation with a 160-watt mercury lamp. The adsorption process of Pb(II) ion removal adhered to the pseudo-second-order model regarding kinetics, while the adsorption isotherm corresponded to the Freundlich isotherm. Additionally, the assessment of photocatalysis kinetics showed that the removal of Pb(II) ions followed a pseudo-first-order model, resulting in a 99.58% elimination of Pb(II) ions. Post-adsorption-photocatalytic treatment, a yellowish precipitate was observed. The XRD pattern result of the yellowish precipitate confirmed the presence of PbO as the formed Pb phase. The study concludes that the TiO2/ZnO/SiO2 nanocomposite as adsorbent-photocatalyst is a highly effective, efficient, and promising method to remove Pb(II) contamination from aqueous solutions.

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Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

Abstract: 1. The C-loaded BiOBr was synthesized via a one-step solvothermal method. 2. C/BiOBr showed an obvious synergistic effect of adsorption and photocatalysis on the degradation of ciprofloxacin.

Cited by 34 publications

References 58 publications

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Preparation of Z‐scheme spherical BiOI/Fe₂O₃/BiOBr for water pollution treatment

Efficient Removal of Pb(II) Ion Using Tio2/Zno/Sio2 Nanocomposite from Aqueous Solutions Via Adsorption-Photocatalysis Process

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Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

Abstract: 1. The C-loaded BiOBr was synthesized via a one-step solvothermal method. 2. C/BiOBr showed an obvious synergistic effect of adsorption and photocatalysis on the degradation of ciprofloxacin.

Cited by 34 publications

References 58 publications

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Coupling Adsorption-Photocatalytic Degradation of Methylene Blue and Maxilon Red

Preparation of Z‐scheme spherical BiOI/Fe2O3/BiOBr for water pollution treatment

Efficient Removal of Pb(II) Ion Using Tio2/Zno/Sio2 Nanocomposite from Aqueous Solutions Via Adsorption-Photocatalysis Process

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Preparation of Z‐scheme spherical BiOI/Fe₂O₃/BiOBr for water pollution treatment