A magnetically separable clinoptilolite supported CdS-PbS photocatalyst: Characterization and photocatalytic activity toward cefotaxime

Mehrabanpour, Najme; Nezamzadeh‐Ejhieh, Alireza; Ghattavi, Shirin; Ershadi, Ali

doi:10.1016/j.apsusc.2022.156252

Cited by 66 publications

(14 citation statements)

References 77 publications

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“…Figure S6 shows that the 13% ZIF-67CoCu/Bi 4 O 5 Br 2 composites demonstrate increased light absorption in the visible range with an increasing ZIF-67CoCu content, as expected. By analyzing the Tauc curves (Figure c,d), , we can see that the energy band gaps of Bi 4 O 5 Br 2 and ZIF-67CoCu are 2.63 and 1.99 eV, respectively. Notably, the energy band gap of ZIF-67CoCu slightly decreases compared to that of ZIF-67Co, which supports the conclusion drawn from the UV–visible absorption spectra, showing the red-shift of ZIF-67CoCu compared with ZIF-67Co.…”

Section: Resultsmentioning

confidence: 99%

Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

Liu,

Lv,

Feng

et al. 2024

ACS Appl. Nano Mater.

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Section: Resultsmentioning

confidence: 99%

Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

Liu,

Lv,

Feng

et al. 2024

ACS Appl. Nano Mater.

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“…The addition of Co 3 O 4 not only results in the absorption threshold of Z-CBH20 have a slight red shift but also enhances its visible-light absorption intensity. On this basis, the band gaps ( E g ) of Co 3 O 4 and BiOBr were determined by the Tauc function: α h υ = A ( h υ – E g ) n /2 , where α is the absorption coefficient, h is the Plank constant, υ is the light frequency, and A is the specific constant . Based on the plot of (α h υ) 2/ n versus ( h υ), the E g value can be obtained.…”

Section: Resultsmentioning

confidence: 99%

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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“…In the Kubelka–Munk model, the absolute R value can be obtained by transforming the reflectance function: ( F ( R ) = (1 – R )2/2 R = K / S ), which is related to the absorption coefficient (α) as K = 2α = SF ( R ). S and K are the scattering and absorption Kubelka–Munk coefficients, respectively . The converted R data are associated with the E g value using the Tauc model.…”

Section: Resultsmentioning

confidence: 99%

“…In contrast, the intensity of the emission peak of α-Fe 2 O 3 /Nb 2 O 5 /C is low, which indicates that the recombination of electron−hole pairs is effectively suppressed. 52 Taken together, HMF can be efficiently oxidized and selectively converted to high-value-added FDCA by superlattice α-Fe 2 O 3 /Nb 2 O 5 nanorods. Furthermore, based on the above results, it is critical to propose possible reaction mechanisms for a better understanding of the enhanced photocatalytic activity and the detailed charge transfer.…”

Section: Photoelectrochemical Measurementsmentioning

confidence: 95%

α-Fe₂O₃/Nb₂O₅/C Nanorods for Selective Photoelectrocatalytic Oxidation of 5-Hydroxymethylfurfural under Solar Light

Yuan,

Zhou,

Gao

et al. 2024

ACS Appl. Nano Mater.

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The epitaxial organization of nano-objects with different compositions and structures into superlattice nanorods holds great promise for photocatalytic biomass oxidation as it can make full use of sunlight and improve carrier transport efficiency. Here, we construct type II photocatalytic heterojunctions using α-Fe 2 O 3 and Nb 2 O 5 , both of which are alternately grown in situ to form superlattice nanorod structures. Due to the interlaced growth of thin layers of α-Fe 2 O 3 and Nb 2 O 5 , the phase interface between α-Fe 2 O 3 and Nb 2 O 5 is greatly increased, which effectively improves the catalytic activity of the catalyst. The selective oxidation of HMF was achieved by superlattice α-Fe 2 O 3 /Nb 2 O 5 /C nanorod photoelectrocatalysts with 96.6% FDCA selectivity, which was 2.3 times higher than that of α-Fe 2 O 3 and 3.5 times higher than that of Nb 2 O 5 , respectively, and the conversion of HMF was close to 100%. This work provides a new idea for the design of catalysts with superlattice structure and used for biomass conversion.

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A magnetically separable clinoptilolite supported CdS-PbS photocatalyst: Characterization and photocatalytic activity toward cefotaxime

Cited by 66 publications

References 77 publications

Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

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

α-Fe₂O₃/Nb₂O₅/C Nanorods for Selective Photoelectrocatalytic Oxidation of 5-Hydroxymethylfurfural under Solar Light

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A magnetically separable clinoptilolite supported CdS-PbS photocatalyst: Characterization and photocatalytic activity toward cefotaxime

Cited by 66 publications

References 77 publications

Improved CO2 Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi4O5Br2 Nanostructures

Improved CO2 Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi4O5Br2 Nanostructures

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

α-Fe2O3/Nb2O5/C Nanorods for Selective Photoelectrocatalytic Oxidation of 5-Hydroxymethylfurfural under Solar Light

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Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

Improved CO₂ Photoreduction Activity and Selectivity Using an Indirect Z-Scheme Heterojunction of ZIF-67 and Bi₄O₅Br₂ Nanostructures

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

α-Fe₂O₃/Nb₂O₅/C Nanorods for Selective Photoelectrocatalytic Oxidation of 5-Hydroxymethylfurfural under Solar Light