access icon free Realisation of CdS/Mn3O4 nanocomposites for potential photocatalytic applications

The present work reports the realisation of high-quality crystalline CdS/Mn3O4 (CM) nanocomposites by a simple cost-effective chemical method in air atmosphere. The authors have performed theoretical calculations and experimental analysis in order to understand the synthesised nanocomposites. X-ray diffraction results showed that the CM nanocomposites were cubic and orthorhombic mixed structure which is in good agreement with the theoretical studies. Field emission scanning electron microscopy images of CM confirmed the formation of well distributed nanocomposites. The outcomes of DFT calculations provide results for the bandgap calculation of pure CdS, Mn3O4 and the CM nanocomposites. Photoluminescence studies with interesting visible light absorption demonstrated the great potentiality of the as-synthesised nanocomposites towards photocatalytic applications that could be a detailed research scope for the authors’ future studies.

Inspec keywords: II-VI semiconductors; nanocomposites; energy gap; wide band gap semiconductors; field emission scanning electron microscopy; nanofabrication; density functional theory; photoluminescence; photocatalysts; cadmium compounds; X-ray diffraction; semiconductor growth; manganese compounds; ultraviolet spectra; crystal growth from solution; visible spectra

Other keywords: DFT calculations; chemical method; photoluminescence; photocatalytic applications; nanocomposites; orthorhombic mixed structure; X-ray diffraction; field emission scanning electron microscopy images; CdS-Mn3O4; cubic mixed structure; bandgap calculation; visible light absorption; air atmosphere

Subjects: II-VI and III-V semiconductors; Density functional theory, local density approximation (condensed matter electronic structure); Electronic structure of composite materials (thin films, low dimensional and nanoscale structures); Photoluminescence in composite materials; Visible and ultraviolet spectra of composite materials; Optical properties of composite materials (thin films, low-dimensional and nanoscale structures); Nanometre-scale semiconductor fabrication technology; Crystal growth; Crystal growth from solution; Low-dimensional structures: growth, structure and nonelectronic properties; Heterogeneous catalysis at surfaces and other surface reactions; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials

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http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2019.0783
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