© The Institution of Engineering and Technology
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.
References
-
-
1)
-
1. Al-Hada, N.M., Kamari, H.M., Shaari, A.H., et al: ‘Fabrication and characterization of manganese-zinc ferrite nanoparticles produced utilizing heat treatment technique’, Results Phys., 2019, 12, pp. 1821–1825 (doi: 10.1016/j.rinp.2019.02.019).
-
2)
-
7. Narayanan, R., Deepa, M., Friebel, F., et al: ‘A CdS/Bi2S3 bilayer and a poly(3,4-ethylenedioxythiophene)/S2− interface control quantum dot solar cell performance’, Electrochim. Acta, 2013, 105, pp. 599–611 (doi: 10.1016/j.electacta.2013.05.008).
-
3)
-
13. Rajesh Kumar, M., Murugadoss, G.: ‘Synthesis and study of optical and thermal properties of Mn doped CdS nanoparticles using polyvinylpyrrolidone’, J. Lumin., 2014, 146, pp. 325–332 (doi: 10.1016/j.jlumin.2013.09.048).
-
4)
-
11. Toufiq, A.M., Wang, F., Javed, Q.U.A., et al: ‘Synthesis characterization and photoluminescent properties of 3D nanostructures self-assembled with Mn3O4 nanoparticles’, Mater. Express, 2014, 4, pp. 258–262 (doi: 10.1166/mex.2014.1167).
-
5)
-
8. Jana, A., Bhattacharya, C., Datta, J.: ‘Enhanced photoelectrochemical activity of electro-synthesized CdS-Bi2S3 composite films grown with self-designed cross-linked structure’, Electrochim. Acta, 2010, 55, pp. 6553–6562 (doi: 10.1016/j.electacta.2010.06.022).
-
6)
-
10. Rani, B.J., Ravina, M., Ravi, G., et al: ‘Synthesis and characterization of hausmannite (Mn3O4) nanostructures’, Surf. Interfaces, 2018, 11, pp. 28–36 (doi: 10.1016/j.surfin.2018.02.007).
-
7)
-
6. Kornarakis, I., Lykakis, I.N., Vordos, N., et al: ‘Efficient visible-light photocatalytic activity by band alignment in mesoporous ternary polyoxometalate-Ag2S-CdS semiconductors’, Nanoscale, 2014, 6, pp. 8694–8703 (doi: 10.1039/C4NR01094A).
-
8)
-
5. Bao, N., Shen, L., Takata, T., et al: ‘Self-templated synthesis of nanoporous CdS nanostructures for highly efficient photocatalytic hydrogen production under visible light’, Chem. Mater., 2008, 20, pp. 110–117 (doi: 10.1021/cm7029344).
-
9)
-
15. Khajuria, S., Sanotra, S., Khajuria, H., et al: ‘Synthesis, structural and optical characterization of copper and rare earth doped CdS nanoparticles’, Acta Chim. Slov., 2016, 63, pp. 104–112 (doi: 10.17344/acsi.2015.1991).
-
10)
-
9. Murugan, R., Kumar, M.R., Chander, D.S., et al: ‘Facile and large scale aqueous synthesis of CdS nanoparticles at room temperature towards optoelectronic applications’, Mater. Res. Express, 2018, 5, p. 105003 (doi: 10.1088/2053-1591/aad9e1).
-
11)
-
2. Giri, A., Goswami, N., Sasmal, C., et al: ‘Unprecedented catalytic activity of Mn3O4 nanoparticles: potential lead of a sustainable therapeutic agent for hyperbilirubinemia’, RSC Adv., 2014, 4, p. 5075 (doi: 10.1039/c3ra45545a).
-
12)
-
14. Wrighton-Araneda, K., Ruby-Figueroa, R., Estay, H., et al: ‘Interaction of H2O with (CuS)n, (Cu2S)n, and (ZnS)n small clusters (n = 1–4, 6): relation to the aggregation characteristics of metal sulfides at aqueous solutions’, J. Mol. Model., 2019, 25, p. 291 (doi: 10.1007/s00894-019-4161-x).
-
13)
-
12. Cheng, Y.W., Tang, F.L., Xue, H.T., et al: ‘First-principles study on electronic properties and lattice structures of WZ-ZnO/CdS interface’, Mater. Sci. Semicond. Process., 2016, 45, pp. 9–16 (doi: 10.1016/j.mssp.2016.01.012).
-
14)
-
3. Javed, Q., Feng-Ping, W., Rafique, M.Y., et al: ‘Canted antiferromagnetic and optical properties of nanostructures of Mn2O3 prepared by hydrothermal synthesis’, Chin. Phys. B, 2012, 21, p. 117311 (doi: 10.1088/1674-1056/21/11/117311).
-
15)
-
4. Ginsburg, A., Keller, D.A., Barad, H.-N., et al: ‘One-step synthesis of crystalline Mn2O3 thin film by ultrasonic spray pyrolysis’, Thin Solid Films, 2016, 615, pp. 261–264 (doi: 10.1016/j.tsf.2016.06.050).
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