In-situ synthesis of three-dimensional nanorods ZnWO4/CdS and photocatalytic degradation of TNT wastewater.
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| Title: | In-situ synthesis of three-dimensional nanorods ZnWO |
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| Authors: | Chen, Yichuan1 (AUTHOR) Chenyc_27@163.com, Zhao, Xiaoyue2 (AUTHOR) 2640787796@qq.com, Song, Yue2 (AUTHOR) 15735059031@163.com, Du, Xingxi2 (AUTHOR) xxdu9884@gmail.com, Zhang, Sitong2 (AUTHOR) 18434848368@163.com |
| Source: | Journal of Materials Science: Materials in Electronics. Jul2025, Vol. 36 Issue 19, p1-13. 13p. |
| Subjects: | Transmission electron microscopes, X-ray photoelectron spectroscopy, Reflectance spectroscopy, X-ray spectroscopy, Photodegradation |
| Abstract: | In this paper, ZnWO4/CdS nanocomposites with three-dimensional nanorod structure were produced by a basic two-step approach. The compounds were characterized by X-Ray Diffraction Analysis (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), High-Resolution Transmission Electron Microscope (HR-TEM), Energy-Dispersive X-Ray Spectroscopy (EDX), X-ray Photoelectron Spectroscopy (XPS), Photoluminescence Spectroscopy (PL), Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS), and photoelectrochemical and photodegradation experiments. The results show that the catalytic activity of ZnWO4/CdS nanocomposites is significantly better than that of ZnWO4 and CdS. This paper investigates how the quantity of ZnWO4 impacts the characteristics of the composite material. The results showed that 0.2 ZnWO4/CdS composites with 3D nanorods demonstrated the peak efficiency in photocatalytically degrading 2,4,6-trinitrotoluene (TNT), and the degradation rate reached 98.8% after 50 min of visible-light illumination. During the degradation of TNT, 0.2 ZnWO4/CdS had the highest reaction rate (0.05646 min−1). After four cycles, the degradation rate of 0.2 ZnWO4/CdS to TNT remained at 81%. The results of the free radical capture experiments showed that holes and superoxide anions were predominantly influential in the photocatalytic degradation of TNT wastewater by 0.2 ZnWO4/CdS. According to the results of the free radical capture experiment, Mott–Schottky test, and UV–visible diffuse reflection spectrum, the reaction mechanism of enhancing photocatalytic activity was proposed. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | In this paper, ZnWO4/CdS nanocomposites with three-dimensional nanorod structure were produced by a basic two-step approach. The compounds were characterized by X-Ray Diffraction Analysis (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), High-Resolution Transmission Electron Microscope (HR-TEM), Energy-Dispersive X-Ray Spectroscopy (EDX), X-ray Photoelectron Spectroscopy (XPS), Photoluminescence Spectroscopy (PL), Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS), and photoelectrochemical and photodegradation experiments. The results show that the catalytic activity of ZnWO4/CdS nanocomposites is significantly better than that of ZnWO4 and CdS. This paper investigates how the quantity of ZnWO4 impacts the characteristics of the composite material. The results showed that 0.2 ZnWO4/CdS composites with 3D nanorods demonstrated the peak efficiency in photocatalytically degrading 2,4,6-trinitrotoluene (TNT), and the degradation rate reached 98.8% after 50 min of visible-light illumination. During the degradation of TNT, 0.2 ZnWO4/CdS had the highest reaction rate (0.05646 min−1). After four cycles, the degradation rate of 0.2 ZnWO4/CdS to TNT remained at 81%. The results of the free radical capture experiments showed that holes and superoxide anions were predominantly influential in the photocatalytic degradation of TNT wastewater by 0.2 ZnWO4/CdS. According to the results of the free radical capture experiment, Mott–Schottky test, and UV–visible diffuse reflection spectrum, the reaction mechanism of enhancing photocatalytic activity was proposed. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09574522 |
| DOI: | 10.1007/s10854-025-15150-x |
