Synthesis and characterization of CoWO4 nanoparticles via chemical precipitation technique

Sagadevan, Suresh; Podder, Jiban; Das, Isha

doi:10.1007/s10854-016-5057-5

Cited by 28 publications

(5 citation statements)

References 16 publications

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“…As shown in Figure S3, compared with the bare CZS, the peaks in the low-frequency region of 400–1000 cm –1 belong to Co–O, W–O, and W–O–W bonds over Cd 0.5 Zn 0.5 S/CoWO 4 . Meanwhile, the bands at 820 and 621 cm –1 are ascribed to the oscillation of O–W–O and W–O bond stretching . In Figure f, the two diffraction peaks of W 6+ at 37.2 and 35.1 eV are related to W 4f 5/2 and W 4f 7/2 , respectively.…”

Section: Resultsmentioning

confidence: 93%

“…40 Furthermore, the peaks of Cd 3d and Zn 2p on CZS−CW (10) shift to a lower level in comparison to Cd 0.5 Zn 0.5 S, manifesting that there exists the strong reciprocity between CoWO 4 and CZS. 41 The two peaks at 801.1 and 786.9 eV shown in Figure 4d 44 In Figure 4f, the two diffraction peaks of W 6+ at 37.2 and 35.1 eV are related to W 4f 5/2 and W 4f 7/2 , 45 respectively. The negative shifts of Zn, Cd 3d, and Zn 2p over CZS−CW (10) indicate the increased electron cloud densities, implying the electron transfer of CoWO 4 to CZS.…”

Section: Resultsmentioning

confidence: 95%

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Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction

Zhou

Yang

et al. 2021

Inorg. Chem.

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The construction of a phase junction photocatalyst can significantly enhance the photocatalytic performance with high selectivity for CO 2 reduction. In this study, an Sscheme junction Cd 0.5 Zn 0.5 S/CoWO 4 semiconductor with the coupling of a twin crystal Cd 0.5 Zn 0.5 S homojunction and CoWO 4 was designed through a hydrothermal method, which could convert CO 2 to CO with high efficiency under visible-light illumination. Cd 0.5 Zn 0.5 S− 10%CoWO 4 exhibited the optimal performance and its CO yield and selectivity were up to 318.68 μmol•g −1 and 95.90%, respectively, which were 4.54 and 1.62 times higher than that of twin crystal Cd 0.5 Zn 0.5 S. Moreover, the Cd 0.5 Zn 0.5 S homojunction with a zinc-blende and wurtzite phase and the S-scheme phase junction of Cd 0.5 Zn 0.5 S/CoWO 4 enhanced the property of CO 2 adsorption and accelerated the detachment of photogenerated carriers. The combination of photogenerated holes in Cd 0.5 Zn 0.5 S and the electrons of CoWO 4 can retain the reduction sites to improve photocatalytic performance. This study provides a neoteric concept and reference for the construction of the S-scheme phase junction.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 95%

Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction

Zhou

Yang

et al. 2021

Inorg. Chem.

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“…Moreover, these CoWO 4 crystals exhibit irregular sphere-shaped with major percentual for average crystals size at around 31% referent to 275 nm. Therefore, according to the literature [119], these CoWO 4 crystals are not nanometric, since the nanocrystals present an average size distribution from 1 to 100 nm, when belonging to nanoscale, with significant and intriguing optical properties [120]. Moreover, the average particle size distribution of CoWO 4 crystals obtained by the PP method has been estimated in the range from 600 nm to 1.5 lm (Fig.…”

Section: Fe-sem Images Analysis and Average Crystal Sizementioning

confidence: 95%

Investigation of electronic structure, morphological features, optical, colorimetric, and supercapacitor electrode properties of CoWO4 crystals

Oliveira

Gouveia

Costa

et al. 2022

Materials Science for Energy Technologies

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“…The peaks at 800 and 626 cm À1 are the characteristic peaks of CoWO 4 . 33 The CoWO 4 with g-C 3 N 4 support contains all the vibration peaks of both pristine g-C 3 N 4 and pure CoWO 4 . Hence, we concluded that there were no structural changes in the g-C 3 N 4 during the introduction of the CoWO 4 .…”

Section: Characterizationmentioning

confidence: 96%

Development of graphitic carbon nitride supported novel nanocomposites for green and efficient oxidative desulfurization of fuel oil

Jabar

Saeed

Khoso

et al. 2022

Nanomaterials and Nanotechnology

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The catalysts utilized for oxidative desulfurization have acquired significant attention and ability to improve the quality of the fuel oil by removing sulfur. In this work, the catalysts used for oxidative desulfurization include CoWO4 and Bi2WO6 with graphitic carbon nitride (g-C3N4) as support were synthesized by the one-pot hydrothermal method. Graphitic carbon nitride was obtained by thermal polycondensation of melamine at 550°C for 5 h. These catalysts were homogeneously dispersed on the surface of the support and their structure, morphology, and properties were determined by different characterization techniques (Powder X-Ray Diffractometer, Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Energy Dispersive X-Ray Spectroscopy, Specific Surface Area (Brunauer, Emmett and Teller (SBET)). The parameters that affect the efficiency of the desulfurization process such as catalyst amount, amount of oxidizing agent, and reaction temperature have been optimized thoroughly. The oxidative desulfurization reaction was studied in terms of kinetics which shows that reaction is pseudo first order. The thermodynamic studies revealed that the reaction is endothermic and spontaneous in nature. The results determined that the catalytic efficiency for the removal of sulfur (as dibenzothiophene) is more than 90% in the presence of support (g-C3N4) to obtain sulfur free fuel.

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Synthesis and characterization of CoWO4 nanoparticles via chemical precipitation technique

Cited by 28 publications

References 16 publications

Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction

Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction

Investigation of electronic structure, morphological features, optical, colorimetric, and supercapacitor electrode properties of CoWO4 crystals

Development of graphitic carbon nitride supported novel nanocomposites for green and efficient oxidative desulfurization of fuel oil

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Synthesis and characterization of CoWO4 nanoparticles via chemical precipitation technique

Cited by 28 publications

References 16 publications

Cd0.5Zn0.5S/CoWO4 Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO2 Reduction

Cd0.5Zn0.5S/CoWO4 Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO2 Reduction

Investigation of electronic structure, morphological features, optical, colorimetric, and supercapacitor electrode properties of CoWO4 crystals

Development of graphitic carbon nitride supported novel nanocomposites for green and efficient oxidative desulfurization of fuel oil

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Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction

Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction