Facile synthesis, characterization and optical properties of copper vanadate nanostructures for enhanced photocatalytic activity

Ghiyasiyan-Arani, Maryam; Masjedi-Arani, Maryam; Salavati‐Niasari, Masoud

doi:10.1007/s10854-016-4370-3

Cited by 76 publications

(27 citation statements)

References 21 publications

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“…Different techniques are used to remove amido black from water. These include adsorption, electrochemical process, photodegradation, ultrafiltration, reverse osmosis, coagulation and biochemical process (18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35). It is observed that these methods have certain limitations like not fast, which cannot be used at a large scale.…”

Section: Introductionmentioning

confidence: 99%

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Ali

Alharbi

ALOthman

et al. 2018

Photochem & Photobiology

174

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Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT-IR, TEM, and SEM. The surface morphology was spherical with 15-26 nm as particle size. The doped titanium oxide (Co/TiO ) nanomaterial was used for photodegradation of amido black dye in water. The maximum photodegradation of amido black obtained was 90%. The values of free energy and enthalpy were negative, indicating spontaneous photodegradation of amido black dye. The photodegradation of amido black dye obeyed first-order kinetic model. The photodegradation mechanism of amido black involved adsorption of the dye on the surface of cobalt doped titanium oxide and its degradation under UV radiation. The electron (e ) and hole (h ) pairs were generated by Co/TiO , which consequently generated superoxide oxygen anion and hydroxyl free radical. These species degraded amido black dye. The reported method was fast, effective, and economic, which may be utilized to remove amido black in water. The doped TiO catalyst was quite stable and can be used up to 5 cycles.

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Section: Introductionmentioning

confidence: 99%

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Ali

Alharbi

ALOthman

et al. 2018

Photochem & Photobiology

174

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“…Because of the biological importance of amino acid Schiff‐base complexes as a nonenzymatic model for a Schiff‐base metal complex, using this precursor to synthesize ceramic NPs has become a hot topic and is categorized as a green method . Salavati‐Niasari et al used [ N , N ‐bis(salicylaldehydo)ethylene diamine] complexes to synthesize ZnO, NiO, and Cu 3 V 2 O 8 nanostructures . A mixed‐ligand complex containing the amino acid Schiff‐base and 1,10‐phenanthroline is an interesting system for researchers because of its applications in anticancer drugs, sensors, photophysics, and so on Preparation of water‐soluble complexes, owing to their higher compatibility with biosystems and less environmental contamination, has gained special importance.…”

Section: Introductionmentioning

confidence: 99%

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Gharagozlou

Naghibi

Ataei

2018

J Chinese Chemical Soc

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The recent environmental awareness has been the motivation for the growing preference for environmentally friendly and water‐based systems in chemical synthesis. In the present work, ZnO nanoparticles were synthesized via a novel method without any water‐insoluble compounds. At the first step, a binary Zn Schiff‐base complex was prepared from sodium salicylaldehyde‐5‐sulfonate, L‐alanine, and zinc acetate. Then, a ternary Zn complex containing the Schiff‐base, chelating, and Phen ligands was synthesized from the as‐synthesized binary Zn Schiff base and 1,10‐phenanthroline monohydrate. This intermediate product showed high water solubility and long‐term stability. Finally, ZnO nanoparticles were synthesized through the calcination of the ternary complex powder at 400, 500, and 600 °C. Combining X‐ray diffraction (XRD) and energy dispersive spectroscopy (EDS) results, it was concluded that the samples contained the ZnO phase without any impurity phases, but Fourier transform infrared (FTIR) spectra implied the presence of a remaining impurity. According to the XRD, FTIR, and photoluminescence (PL) analyses, the as‐synthesized samples differed in terms of the defect content and lattice strain. The sample calcined at 500 °C possessed the lowest defect content and lattice strain. Transmission electron microscopy (TEM) imaging revealed the formation of ZnO nanoparticles with particles sizes of <20, ~50, and ~100 nm for samples heat‐treated at the different temperatures.

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“…To address the urgent need for clean water and sustainable energy, alternative eco‐friendly and economical energy technology should be high on the agenda. Among the available candidates, semiconductor‐based photocatalysis is an facile and efficient technology, which utilizes the renewable solar energy without any secondary pollution to remove the organic contaminants …”

Section: Introductionmentioning

confidence: 99%

“…Among the available candidates, semiconductor-based photocatalysis is an facile and efficient technology, which utilizes the renewable solar energy without any secondary pollution to remove the organic contaminants. [11][12][13] As a visible light photocatalyst, bismuth tungstate (Bi 2 WO 6 ) has attracted much attention in photodegradation and photoelectrochemistry owning to its merits of chemical stability and long durability. [14,15] In terms of practical applications, the photoelectrocatalytic efficiency of Bi 2 WO 6 is still limited due to the lower charge mobility and poorer quantum yield.…”

Section: Introductionmentioning

confidence: 99%

Rational Fabrication of Hierarchical Z‐Scheme WO₃/Bi₂WO₆ Nanotubes for Superior Photoelectrocatalytic Reaction

Rong

Wang

et al. 2019

ChemistrySelect

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To develop efficient and stable photocatalysts for visible light pollutant degradation, hierarchical Z‐Scheme WO3/Bi2WO6 nanotubes have been rationally designed and fabricated via a combined electrospinning‐calcination process. Moreover, the morphology of as‐fabricated nanotubes could be tuned by the annealing temperature. Accordingly, the newly‐designed hierarchical Z‐Scheme system highly facilitates the separation and migration of photoinduced charge carriers, and enhances the broadened photoabsorption range and high redox capacity owning to the synergistic effects of WO3 and Bi2WO6. Meanwhile, the corresponding possible formation mechanism is proposed as well. Benefiting from the unique structural features, the optimized 550 °C‐WO3/Bi2WO6 nanotubes exhibit the remarkable photoelectrochemical activity and photocatalytic performance for degrading pollutant models (4‐NP and RhB), among which reaction rate is superior to 500 °C and 600 °C‐WO3/Bi2WO6 counterparts. This work may shed light on rational design and construction of hierarchical Z‐Scheme WO3/Bi2WO6 nanotubes for energy and environment‐related applications.

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Facile synthesis, characterization and optical properties of copper vanadate nanostructures for enhanced photocatalytic activity

Cited by 76 publications

References 21 publications

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Rational Fabrication of Hierarchical Z‐Scheme WO₃/Bi₂WO₆ Nanotubes for Superior Photoelectrocatalytic Reaction

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Facile synthesis, characterization and optical properties of copper vanadate nanostructures for enhanced photocatalytic activity

Cited by 76 publications

References 21 publications

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO2 Nanoparticles

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO2 Nanoparticles

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Rational Fabrication of Hierarchical Z‐Scheme WO3/Bi2WO6 Nanotubes for Superior Photoelectrocatalytic Reaction

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Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Kinetics, Thermodynamics, and Modeling of Amido Black Dye Photodegradation in Water Using Co/TiO₂ Nanoparticles

Rational Fabrication of Hierarchical Z‐Scheme WO₃/Bi₂WO₆ Nanotubes for Superior Photoelectrocatalytic Reaction