Abstract
In this present work, we synthesized a yolk-shell shaped CuCo2S4 by a simple anion exchange method. The morphological and structural properties of the as-synthesized sample were characterized using X-ray diffraction (XRD), UV-vis diffuse reflectance spectra (UV-vis DRS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The SEM and TEM results confirmed that the uniform yolk-shell structure was formed during the solvothermal process. The band gap was about 1.41 eV, which have been confirmed by UV–vis DRS analysis. The photocatalytic property was evaluated by the photocatalytic degradation of methylene blue (MB) dye as a target pollutant under the visible-light irradiation. The experimental results confirmed the potential application of yolk-shell shape CuCo2S4 in visible-light photocatalytic applications.
Highlights
Owing to their unique structural properties, as well as outstanding electrical properties, hollow nanostructures with tunable shape and size have gained huge research interest in the field of supercapacitors, catalysis, and biosensors [1]
We report a solvothermal route to synthesize a novel yolk-shell shaped CuCo2 S4 using the sulfidation of Cu-Co glycerate precursor with thiourea
To the best of our knowledge, this is the first report on the synthesis of CuCo2 S4 yolk-shells and applications in visible-light-driven photocatalysts
Summary
Owing to their unique structural properties, as well as outstanding electrical properties, hollow nanostructures with tunable shape and size have gained huge research interest in the field of supercapacitors, catalysis, and biosensors [1]. Various hollow structured metal oxides and sulfides have been successfully synthesized using soft and hard-template techniques [2]. Polyvinylpyrrolidone (PVP) as a template [3] This synthesized hollow Co3 O4 exhibits superior lithium storage capacity than the bulk Co3 O4. S.E. Moosavifard et al synthesized CuCo2 O4 hollow spheres using a simple soft template route, which exhibits superior electrochemical than the bulk CuCo2 O4 [4]. In the past few decades, ternary metal sulfides have attracted great attention in the field of energy storage devices and photocatalysts due to their outstanding electrical properties. We report a solvothermal route to synthesize a novel yolk-shell shaped CuCo2 S4 using the sulfidation of Cu-Co glycerate precursor with thiourea. To the best of our knowledge, this is the first report on the synthesis of CuCo2 S4 yolk-shells and applications in visible-light-driven photocatalysts
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