Fabrication of sphere-like Bi2MoO6/ZnO composite catalyst with strong photocatalytic behavior for the detoxification of harmful organic dyes

Kasinathan, Maruthathurai; Thiripuranthagan, Sivakumar; Sivakumar, A.

doi:10.1016/j.optmat.2020.110218

Cited by 37 publications

(8 citation statements)

References 95 publications

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“…Photoluminescence (PL) was able to be used to evaluate the separation and recombination efficiency of photogenerated electrons and holes in semiconductor photocatalysts. The PL intensity indicated lower recombination rate of photoinduced electron-hole pairs, which would result in more efficient photocatalytic performance [ 31 , 47 ]. The fluorescence intensity comparison of X-BZO with BMO, ZnO is shown in Figure 6 .…”

Section: Resultsmentioning

confidence: 99%

“…Among all the four composites, 0.4-BZO had the best degradation effect, and the degradation rate of MB was reached to 92%. The enhanced photocatalytic performance may be resulted from the narrow band gap of BZO and effective promotion of electron transfer in the heterostructure [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, there have been some reports on Bi 2 MoO 6 /ZnO photocatalysts. A novel spherical Bi 2 MoO 6 /ZnO composite catalyst was synthesized by solvothermal method [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

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Construction and Enhanced Efficiency of Bi2MoO6/ZnO Compo-Sites for Visible-Light-Driven Photocatalytic Performance

et al. 2023

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Bi2MoO6 was one of the important bismuth-based semiconductors with a narrow bandgap, and has been widely used in selective oxidation catalysts, supercapacitors, and energy-storage devices. A series of Bi2MoO6/ZnO composite photocatalysts with different mass ratios were synthesized by the hydrothermal method. The synthesized samples were characterized by XRD, PL, UV-Vis, SEM, TEM, XPS, and BET analysis techniques. Under visible light conditions, Methylene blue (MB) was used as the target degradation product to evaluate its photocatalytic performance. The results showed that the degradation rate constant of Bi2MoO6/ZnO (0.4-BZO) was about twice that of the traditional photocatalysis of ZnO. The Bi2MoO6/ZnO composite catalyst maintained stable performance after four consecutive runs. The high photocatalytic activity of Bi2MoO6/ZnO was attributed to the efficient electron transport of the heterojunction, which accelerates the separation of electron-hole pairs and reduces the probability of carrier recombination near the Bi2MoO6/ZnO heterojunction. Bi2MoO6/ZnO nanocomposites have potential applications in the field of photodegradation.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Construction and Enhanced Efficiency of Bi2MoO6/ZnO Compo-Sites for Visible-Light-Driven Photocatalytic Performance

et al. 2023

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“…To further investigate the morphology of the Bi it can be seen that the lattice spacing of 0.28 nm corresponds to the (100) crystal plane of ZnO [29],…”

Section: Tem and Hr-temmentioning

confidence: 99%

Preparation of Dual Z-scheme Bi2MoO6/ZnSnO3/ZnO Heterostructure Photocatalyst for Efficient Visible Light Degradation of Organic Pollutants

Gao

et al. 2022

J Inorg Organomet Polym

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： An important means of achieving efficient charge separation and improving photocatalytic activity is the construction of heterostructures. In this study, the Bi 2 MoO 6 /ZnSnO 3 /ZnO heterostructure photocatalyst was synthesized by the hydrothermal method.The synthesized samples were carefully examined by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscopy (HR-TEM), photoluminescence (PL), and other analytical techniques.Meanwhile, the photocatalytic performance was further evaluated by multi-mode photocatalytic degradation with crystal violet (CV). The results show that the composite material has a relatively homogeneous cubic structure in size and shape. In the cubic structure, a heterogeneous structure exists between Bi 2 MoO 6 , ZnSnO 3 and ZnO. Simultaneously, the dramatic changes in physical morphology, such as the specific surface area and particle size of the composites, led to a unique set of properties, such as a significant climb in light absorption properties and superior photocatalytic activity. In addition, the Bi 2 MoO 6 /ZnSnO 3 /ZnO composite material shows lower photoluminescence intensity, smaller arc radius, and stronger photocurrent response compared to

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“…Catalytic oxidation/reduction is one of the most useful methods to degrade organic dyes where catalysts such as biocatalysis, COF (covalent organic framework), MOF(metal-organic framework), TiO 2 , carbon nanotubes, zeolites, etc., have been reported in the literature [ 5 , 6 , 7 ]. However, due to their complicated synthesis, low thermal stability, high energy consumption, and expensive precursors, applying them on a real scale is an unpractical approach.…”

Section: Introductionmentioning

confidence: 99%

A Novel Metal-Containing Mesoporous Silica Composite for the Decolorization of Rhodamine B: Effect of Metal Content on Structure and Performance

et al. 2022

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A series of novel MnxFey@SiO2 (x,y = 1–20%) nanocomposites were synthesized for the first time via the sol-gel/combustion method with different content of precursors (Mn and Fe acetate salts). The effect of precursor content and ratio on physicochemical properties were observed by various characterization methods. Moreover, Rhodamine B (RhB) was chosen as the target pollutant to test the performance of these nanocomposites under a photocatalytic Fenton-like reaction. The results showed that the nanocomposite morphology improved by increasing Fe and Mn content. In this study, interesting behavior was observed in BET results which were different from the fact that increasing metal content can decrease the surface area. This study revealed that one metal could be more critical in controlling the properties than another. Moreover, the precursor ratio appears to have a more tangible effect on the surface area than the effect of precursor content. Among all synthesized nanocomposites, Mn1Fe5@SiO2 showed the highest surface area of 654.95 m2/g. At optimum batch conditions (temp = 25 °C, catalyst dosage = 1 g L−1, H2O2 = 75 mmolL−1, and initial RhB concentration = 50 mg L−1), complete removal (simultaneous adsorption/degradation) occurred using Mn1Fe5@SiO2 at neutral pH. This study showed that the designed nanomaterial could be used as a dual functional adsorbent/photocatalyst in different environmental applications.

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Fabrication of sphere-like Bi2MoO6/ZnO composite catalyst with strong photocatalytic behavior for the detoxification of harmful organic dyes

Cited by 37 publications

References 95 publications

Construction and Enhanced Efficiency of Bi2MoO6/ZnO Compo-Sites for Visible-Light-Driven Photocatalytic Performance

Construction and Enhanced Efficiency of Bi2MoO6/ZnO Compo-Sites for Visible-Light-Driven Photocatalytic Performance

Preparation of Dual Z-scheme Bi2MoO6/ZnSnO3/ZnO Heterostructure Photocatalyst for Efficient Visible Light Degradation of Organic Pollutants

A Novel Metal-Containing Mesoporous Silica Composite for the Decolorization of Rhodamine B: Effect of Metal Content on Structure and Performance

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