Characterization of BiOCl/BiOI binary catalyst and its photocatalytic activity towards rifampin

Yousefi, Abbas; Nezamzadeh‐Ejhieh, Alireza

doi:10.1016/j.jphotochem.2022.114135

Cited by 29 publications

(5 citation statements)

References 94 publications

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“…52 The characteristic peak at 527 cm −1 is attributed to the Bi–O bond, and the absorption peak of Bi–O occurs at 485 cm −1 in the BiOI spectrum. 53 In the BiOCl spectrum, 1107 cm −1 and 836 cm −1 are the absorption peaks of O–Cl and Bi–Cl, respectively. 47 The distinctive peak of Bi–Cl was enhanced in the spectrum of BiOCl 0.5 I 0.5 , while the absorption peak of O–Cl practically vanished, showing that BiOCl 0.5 I 0.5 was not a simple mixture of BiOCl and BiOI.…”

Section: Resultsmentioning

confidence: 99%

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Deng,

Luo,

Cao

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Deng,

Luo,

Cao

et al. 2024

New J. Chem.

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“…A similar phenomenon has also been observed in other heterojunctions. , In addition, XRD patterns indicate that all of the as-prepared samples have high crystallinity with sharp diffraction peaks. According to the Scherrer formula, pure Co 3 O 4 might present a smaller crystalline size than pure BiOBr because of its broader XRD peak. , …”

Section: Resultsmentioning

confidence: 99%

“…According to the Scherrer formula, pure Co 3 O 4 might present a smaller crystalline size than pure BiOBr because of its broader XRD peak. 39,40 Figure 2a−c exhibits the FESEM morphological images of Co 3 O 4 , BiOBr, and Z-CBH20, respectively. Pure Co 3 O 4 displays the shape of microspheres with a uniform diameter of 5−6 μm.…”

Section: •−mentioning

confidence: 99%

Constructing a Z-Scheme Co₃O₄/BiOBr Heterojunction to Enhance Photocatalytic Peroxydisulfate Oxidation of High-Concentration Rhodamine B: Mechanism, Degradation Pathways, and Toxicological Evaluations

Zhang,

Xu,

et al. 2024

Inorg. Chem.

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Photocatalytic coupling technologies have emerged as popular strategies to increase the treatment efficiency of dyecontaining wastewater. Herein, the Z-scheme Co 3 O 4 /BiOBr heterojunction (Z-CBH) was constructed and developed as a photocatalytic peroxydisulfate (PDS) activator for the degradation of high-concentration Rhodamine B (RhB). Multiple testing techniques were employed to confirm the formation of Z-CBHs. When 0.1 g•L −1 of Z-CBH20 and 1.0 mmol•L −1 of PDS were added simultaneously under simulated sunlight irradiation, the RhB degradation efficiency could approach 91.3%. Its reaction rate constant (0.01231 min −1 ) was much beyond the sum of those in the Z-CBH20/light system (0.00436 min −1 ) and the PDS/light system (0.0062 min −1 ). h + , • OH, • O 2 − , SO 4•− , and 1 O 2 were detected as the dominant reactive species for RhB degradation. The potential mechanism of photocatalytic PDS oxidation was proposed. The possible intermediates were determined by highperformance liquid chromatography-quadrupole time-of-flight mass spectrometry assisted with density functional theory and Fukui theory. The possible degradation pathways of RhB degradation were put forward. The toxicological properties of RhB and its intermediates were evaluated by quantitative structure−activity relationship prediction. This work will not only provide a reference for developing photocatalytic persulfate activators but also gain an insight into the degradation pathways of RhB and the toxicity of its intermediates.

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“…A decreasing degradation efficiency was reported with increasing basicity of the medium from pH 6 to pH 10 due to the deprotonation of piperazine nitrogen of rifampicin above its pK b value of 7.9, which induces electrostatic repulsion among negative surface charges of TiO 2 NPs [121]. In another finding by Yousefi et al, the photocatalytic degradation efficiency of rifampicin by BiOCl/BiOI nanocomposites was optimal in an acidic environment (pH 3 and pH 5) due to the attraction of rifampicin-free electron pairs to the positive surface of the catalyst [122]. The pH pzc of BiOCl/BiOI was 7.5, leading to an unsatisfactory rifampicin removal at pH 8 to pH 10.…”

Section: Parameters Governing Advanced Oxidation Processes In the Deg...mentioning

confidence: 97%

Recent Advances in Advanced Oxidation Processes for Degrading Pharmaceuticals in Wastewater—A Review

Roslan,

Lau,

Suhaimi

et al. 2024

Catalysts

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A large variety of pharmaceutical compounds have recently been detected in wastewater and natural water systems. This review highlighted the significance of removing pharmaceutical compounds, which are considered indispensable emerging contaminants, from wastewater and natural water systems. Various advanced oxidation processes (AOPs), including UV-H2O2, Fenton and photo-Fenton, ozone-based processes, photocatalysis, and physical processes, such as sonolysis, microwave, and electron beam irradiation, which are regarded as the most viable methods to eliminate different categories of pharmaceutical compounds, are discussed. All these AOPs exhibit great promising techniques, and the catalytic degradation process of the emerging contaminants, advantages, and disadvantages of each technique were deliberated. Heterogeneous photocatalysis employing metal oxides, particularly anatase TiO2 nanoparticles as catalysts activated by UV light irradiation, was reviewed in terms of the electron–hole separation, migration of the charge carriers to the catalyst surfaces, and redox potential of the charge carriers. This brief overview also emphasized that anatase TiO2 nanoparticles and TiO2-based nanomaterials are promising photocatalysts, and a combination of photocatalysis and other AOPs enhanced photocatalytic degradation efficiency. Finally, the challenges of applying anatase TiO2-based photocatalysis in environmental remediation and wastewater treatments to degrade pharmaceutical compounds, including mass spectroscopic analysis and a biological activity test of by-products of the emerging contaminants resulting from photocatalysis, are summarized.

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Characterization of BiOCl/BiOI binary catalyst and its photocatalytic activity towards rifampin

Cited by 29 publications

References 94 publications

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Constructing a Z-Scheme Co₃O₄/BiOBr Heterojunction to Enhance Photocatalytic Peroxydisulfate Oxidation of High-Concentration Rhodamine B: Mechanism, Degradation Pathways, and Toxicological Evaluations

Recent Advances in Advanced Oxidation Processes for Degrading Pharmaceuticals in Wastewater—A Review

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Characterization of BiOCl/BiOI binary catalyst and its photocatalytic activity towards rifampin

Cited by 29 publications

References 94 publications

Persulfate-enhanced degradation of propranolol over BiOCl0.5I0.5 under visible light irradiation

Persulfate-enhanced degradation of propranolol over BiOCl0.5I0.5 under visible light irradiation

Constructing a Z-Scheme Co3O4/BiOBr Heterojunction to Enhance Photocatalytic Peroxydisulfate Oxidation of High-Concentration Rhodamine B: Mechanism, Degradation Pathways, and Toxicological Evaluations

Recent Advances in Advanced Oxidation Processes for Degrading Pharmaceuticals in Wastewater—A Review

Contact Info

Product

Resources

About

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Persulfate-enhanced degradation of propranolol over BiOCl_0.5I_0.5 under visible light irradiation

Constructing a Z-Scheme Co₃O₄/BiOBr Heterojunction to Enhance Photocatalytic Peroxydisulfate Oxidation of High-Concentration Rhodamine B: Mechanism, Degradation Pathways, and Toxicological Evaluations