Solvothermal Synthesis of Cs<sub>0.33</sub>WO<sub>3</sub>/LDHs Composite as a Novel Visible‐Light‐Driven Photocatalyst

Zhang, Dan; Ji, Taotao; Yu, Jingang; Jiang, Xinyu; Jiao, Feipeng

doi:10.1111/php.12838

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…30 From Figure S2b, the Cs x WO 3 particles were dispersed on the LDH surface, and the other parts of Cs x WO 3 particles might be assembled into the inside frame of the CW/LDH composites, which well fitted our previous work. 26,31 It could be easily discovered that the structure of FCW/LDH was more uniform than that of CW/ LDH (Figure S2c). Besides, the spherical shape of FCW/LDH composites was clearly observed in Figure S2 and the surface of FCW/LDH was rough and somewhat agglomerated.…”

Section: Resultsmentioning

confidence: 99%

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Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Zhao

Chen

Zou

et al. 2018

Ind. Eng. Chem. Res.

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Novel Fe3O4–Cs x WO3/NiAl layered double hydroxide composites (FCW/LDH) for the activation of peroxymonosulfate (PMS) and the succeeding degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) was synthesized through a simple method. The composites prepared were characterized by XRD, SEM, EDS, FT-IR, UV–vis DRS, and N2 physisorption, respectively. It was found that FCW/LDH could effectively catalyze PMS to generate sulfate radicals (SO4 •–) to degrade 2,4-D. The added 2,4-D (20 mg/L) was almost completely removed (with a removal of 90.53%) in 180 min by using 1.00 g/L FCW/LDH and 0.50 g/L PMS. Several related factors (PMS concentration, initial pH, disturbing anions) were tested in order to understand their effect on the degradation performance. Furthermore, the photocatalysts exhibited good reusability and stability after four recycles. Finally, a possible degradation mechanism was provided according to theabove experimental results. The desired FCW/LDH composites showed promising application in purifying water.

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Section: Resultsmentioning

confidence: 99%

“…The target photocatalysts were prepared by a hydrothermal method in previous literature. − The details of the processes are described in the Supporting Information. The preparation method of the samples is shown in Scheme .…”

Section: Methodsmentioning

confidence: 99%

Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Zhao

Chen

Zou

et al. 2018

Ind. Eng. Chem. Res.

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An overview of solar/visible light-driven heterogeneous photocatalysis for water purification: TiO2- and ZnO-based photocatalysts used in suspension photoreactors

Wetchakun

Sakulsermsuk

2019

Journal of Industrial and Engineering Chemistry

209

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Construction of a Z-Scheme Dictated WO_3–X/Ag/ZnCr LDH Synergistically Visible Light-Induced Photocatalyst towards Tetracycline Degradation and H₂ Evolution

2019

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Herein, we have designed nonstoichiometric WO3, coupled with ZnCr layered double hydroxide (LDH) nanosheeet through Ag nanoparticle as the solid-state electron mediator to form WO3–X/Ag/ZnCr LDH Z-scheme photocatalyst. The presence of oxygen defect levels in as-synthesized materials was confirmed by Raman, X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL) analyses. The photocatalytic performance of the catalysts was investigated by the tetracycline degradation and H2 energy production under visible light irradiation. The WO3–X/Ag/ZnCr LDH ternary heterostructure exhibits superior activity toward tetracycline degradation and hydrogen evolution. The excellent photocatalytic performance of the catalyst was attributed to the synergistic effects among three species (WO3–X, Ag, and ZnCr LDH) and the enhanced separation efficiency of photoinduced charge carriers through the Z-scheme WO3–X/Ag/ZnCr LDH system. In addition, the created oxygen deficiency on WO3–X could improve the photocatalytic behavior of ZnCr LDH in heterostructure by delaying the recombination efficiency of photoexcited electron–hole pairs. Furthermore, the higher affinity of tetracycline at the oxygen defect levels of the photocatalyst supports the high rate of tetracycline degradation. The enhanced photocatlytic activity of the catalysts was further supported by PL spectra and photoelectrochemical studies (electrochemical impedance spectroscopy (EIS) and linear sweep voltammetry (LSV) plot). The present research opens up a new strategy for designing highly efficient visible light-induced Z-scheme-based photocatalysts with high population of active sites for energy and environmental applications in a sustainable manner.

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Solvothermal Synthesis of Cs_0.33WO₃/LDHs Composite as a Novel Visible‐Light‐Driven Photocatalyst

Cited by 6 publications

References 31 publications

Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

An overview of solar/visible light-driven heterogeneous photocatalysis for water purification: TiO2- and ZnO-based photocatalysts used in suspension photoreactors

Construction of a Z-Scheme Dictated WO_3–X/Ag/ZnCr LDH Synergistically Visible Light-Induced Photocatalyst towards Tetracycline Degradation and H₂ Evolution

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Solvothermal Synthesis of Cs0.33WO3/LDHs Composite as a Novel Visible‐Light‐Driven Photocatalyst

Cited by 6 publications

References 31 publications

Activation of Peroxymonosulfate by Fe3O4–CsxWO3/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Activation of Peroxymonosulfate by Fe3O4–CsxWO3/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

An overview of solar/visible light-driven heterogeneous photocatalysis for water purification: TiO2- and ZnO-based photocatalysts used in suspension photoreactors

Construction of a Z-Scheme Dictated WO3–X/Ag/ZnCr LDH Synergistically Visible Light-Induced Photocatalyst towards Tetracycline Degradation and H2 Evolution

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Solvothermal Synthesis of Cs_0.33WO₃/LDHs Composite as a Novel Visible‐Light‐Driven Photocatalyst

Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Activation of Peroxymonosulfate by Fe₃O₄–Cs_xWO₃/NiAl Layered Double Hydroxide Composites for the Degradation of 2,4-Dichlorophenoxyacetic Acid

Construction of a Z-Scheme Dictated WO_3–X/Ag/ZnCr LDH Synergistically Visible Light-Induced Photocatalyst towards Tetracycline Degradation and H₂ Evolution