Photoinduced Charge Transfer Properties of ZnWO4/CdS Composite and its Photocatalytic Activities under visible Light

Liu, Hongcheng; He, Dongqing; Zhang, Xiaochen; Yu, Qin; Wang, Jue

doi:10.2991/amitp-16.2016.102

Proceedings of the 2016 4th International Conference on Advanced Materials and Information Technology Processing (AMITP 2016) 2016

DOI: 10.2991/amitp-16.2016.102

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Photoinduced Charge Transfer Properties of ZnWO4/CdS Composite and its Photocatalytic Activities under visible Light

Hongcheng Liu¹,

Dongqing He²,

Xiaochen Zhang³

et al.

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2024

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Cited by 2 publications

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“…14 The increased stability of the ZnWO 4 /CdS composite in photocatalysis can be attributed to the low recombination ratio of electron-hole pairs caused by light, which is facilitated by the interconnected interface of the ZnWO4/CdS composite. 15 In comparison to pristine ZnWO 4 , the rate of photocatalytic H 2 evolution for CdS@ZnWO 4 is 105 times greater. Also, compared to pure ZnWO 4 , the photocatalytic activity of CdS@ZnWO 4 (20% CdS) composites against RhB degradation was 4.7 times greater.…”

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The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄

Heiba,

Farag,

Abozied

et al. 2024

ECS J. Solid State Sci. Technol.

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We investigated the influence of CdS on the structural and optical properties of nano ZnWO4 for optical applications. (1−x)ZnWO4/xCdS (x; 0 to 0.25) heterojunctions were formed and the structure and microstructure of the ZnWO4 and CdS phases developed were investigated using Rietveld refinement analysis for synchrotron X-ray diffraction data. Phase analysis revealed the phase percentage of the CdS phase is always less than the nominated value (x), implying merging of some Cd and S into ZnWO4. Raman spectra showed CdS peaks, confirming the existence of CdS. Scanning electron microscopy showed two distinct morphologies: plate-like particles (ZnWO4 phase) and spherical shape (CdS phase). UV–vis diffuse measurements revealed enhancement of absorbance and reduction in reflectance and transmittance, in the range 300–56 nm, as the amount of CdS (x) increased in the (1−x)ZnWO4/xCdS system. Band gap of the ZnWO4 phase reduced from 4.0 eV for x = 0.0 to 3.9, 3.6, and 2.9 eV for x = 0.05, 0.1, and 0.25, respectively. The highest refractive index values were obtained as the amount of CdS reached 0.05. Impact of alloying on linear and nonlinear parameters and emitted photoluminescence spectra was studied. Upon loading ZnWO4 with CdS, the PL intensity is greatly quenched and the whole spectrum is red shifted, from 480 to 540 nm. CIE chromaticity diagrams show that ZnWO4 sample without any doping exhibits a blue color while the doped system reveals green-yellow colors.

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confidence: 97%

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄

Heiba,

Farag,

Abozied

et al. 2024

ECS J. Solid State Sci. Technol.

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Effect of metal chalcogenides on modifying the structural and optical properties of ZnWO4 nanostructure

Heiba,

Abozied,

Ahmed

et al. 2024

Optical Materials

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Photoinduced Charge Transfer Properties of ZnWO4/CdS Composite and its Photocatalytic Activities under visible Light

Cited by 2 publications

References 13 publications

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄

Effect of metal chalcogenides on modifying the structural and optical properties of ZnWO4 nanostructure

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Photoinduced Charge Transfer Properties of ZnWO4/CdS Composite and its Photocatalytic Activities under visible Light

Cited by 2 publications

References 13 publications

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO4

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO4

Effect of metal chalcogenides on modifying the structural and optical properties of ZnWO4 nanostructure

Contact Info

Product

Resources

About

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄

The Influence of CdS on the Structural and Optical Properties of Nano ZnWO₄