Synthesis, characterization and photocatalytic activity of LaNdZr2O7 supported SnSe nanocomposites for the degradation of Foron blue dye

Karamat, Nazia; Ehsan, Muhammad Fahad; Ashiq, Muhammad Naeem; Ijaz, Sana; Najam‐ul‐Haq, Muhammad; Hamid, Saher; Bahnemann, Detlef W.

doi:10.1016/j.apsusc.2018.09.023

Cited by 25 publications

(8 citation statements)

References 31 publications

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“…Karamat et al 202 made SnSe composite with LaNdZr 2 O 7 and compared the photocatalytic efficiency with SnSe and blank dye. The setup composed a 300 W Xe arc lamp (PLS-SXE300, Beijing Trusttech Co. Ltd).…”

Section: Various Applicationsmentioning

confidence: 99%

Tin-selenide as a futuristic material: properties and applications

et al. 2021

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Section: Various Applicationsmentioning

confidence: 99%

Tin-selenide as a futuristic material: properties and applications

et al. 2021

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“…On the other hand, the presence of the C 1s peak is attributed to the preparation method of the sample for XPS analysis. 41 The survey spectrum of the PbS/SrZrO 3 nanocomposite is shown in Figure 2d, which portrays the presence of all peaks corresponding to the elements present in PbS/SrZrO 3 , confirming its purity as well.…”

Section: Structural Characterizationmentioning

confidence: 70%

SrZrO₃ Cube-Decorated PbS Nanoflowers as Robust Electrocatalysts for the Oxygen Evolution Reaction

et al. 2022

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Shrinkage of reservoirs of fossil fuels has already created an alarming situation in the energy sector, and the side products produced during their burning affect the environment adversely. Therefore, it is a need of time to replace fossil fuels with any other source with huge reservoirs. Herein, we fabricated a PbS/SrZrO3 nanocomposite, exhibiting promising oxygen evolution reaction activity. The synthesized samples were characterized by various techniques to confirm the material phase, morphology, surface area, composition, and oxidation states. As a result, it displays a very promising overpotential of 228 mV at a current density of 10 mA/cm2, a lower Tafel slope of 64 mV/dec, a higher turnover frequency of 1.45 s–1, an electrochemically active surface area of 280 cm2/g, and high stability up to 24 h, in contrast to the most advanced noble metal electrocatalysts Pt, oxides of Ir and Ru, and their constituents. High activity and low cost make this material one of the best to endeavor in the field of water splitting.

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“…Water pollution is continuously gaining great interest globally due to its health implications. Within the last few decades, tremendous efforts have been invested into water and/or wastewater treatment applications to reduce environmental problems and achieve protection for humans and the environment [1,2]. The presence of organic pollutants such as colored dyes in industrial aqueous effluents is considered a major environmental issue.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Diazo Dye over Suspended and Immobilized TiO2 Catalyst in Swirl Flow Reactor: Kinetic Modeling

2021

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The degradation kinetics of Direct Blue 15 (DB15), a diazo dye, were studied over a suspended and immobilized TiO2 catalyst. For all experiments, the kinetics experiments were performed in a swirl flow photoreactor under the influence of UV light. The effect of different parameters: dye concentration, catalyst loading, and light intensity, on the DB15 kinetics was investigated. The kinetic rates were assessed using apparent ka approach, a single value of reaction rate kr and adsorption constant K, and approach of kr as of variable. The DB15 mineralization was discussed as well. Using a dip-coating device, the P25 catalyst was deposited on a Pyrex glass. The thin film surface characterization was examined. The coated catalyst was evaluated by checking the effect of two variables: initial dye concentration and light intensity on the DB15 kinetics. In terms of the ka approach, the results demonstrated that DB15 degradation is described by the pseudo first-order kinetics model. The Langmuir-Hinshelwood (L-H) model was fitted well with the experimental data for the number of process variables. L-H constant kr was determined as a function of three parameters: initial dye concentration, catalyst loading, and light intensity. The ka values were evaluated and compared with experimental results. In terms of three variables, ka can be expressed as ka=0.15 [C]o−0.69 [W]0.73 I0.91 1 + 0.17 Co while the empirical model results in the following expression, ka=0.77 Co−1.65 W0.73 Io0.89. It was observed that 83.64% mineralization was achieved after a period of 16 h. In terms of immobilized catalyst, the DB15 degradation kinetics was described by a pseudo first-order model for different dye concentrations. Meanwhile, a power-law model described the impact of light intensity on dye kinetics. In addition, the coated catalyst was successfully reusable with high efficiency for up to four cycles.

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Synthesis, characterization and photocatalytic activity of LaNdZr2O7 supported SnSe nanocomposites for the degradation of Foron blue dye

Cited by 25 publications

References 31 publications

Tin-selenide as a futuristic material: properties and applications

Tin-selenide as a futuristic material: properties and applications

SrZrO₃ Cube-Decorated PbS Nanoflowers as Robust Electrocatalysts for the Oxygen Evolution Reaction

Photocatalytic Degradation of Diazo Dye over Suspended and Immobilized TiO2 Catalyst in Swirl Flow Reactor: Kinetic Modeling

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Synthesis, characterization and photocatalytic activity of LaNdZr2O7 supported SnSe nanocomposites for the degradation of Foron blue dye

Cited by 25 publications

References 31 publications

Tin-selenide as a futuristic material: properties and applications

Tin-selenide as a futuristic material: properties and applications

SrZrO3 Cube-Decorated PbS Nanoflowers as Robust Electrocatalysts for the Oxygen Evolution Reaction

Photocatalytic Degradation of Diazo Dye over Suspended and Immobilized TiO2 Catalyst in Swirl Flow Reactor: Kinetic Modeling

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SrZrO₃ Cube-Decorated PbS Nanoflowers as Robust Electrocatalysts for the Oxygen Evolution Reaction