Abstract
Pristine and Cu-doped ZAO nanosheets have been successfully synthesized using the hydrothermal path. XRD analysis confirmed ZAO's single-phase cubic spinel structure. The morphology of ZAO changed significantly from micro-hexagons to nanosheets with the doping of Cu ions. The XPS spectra of Cu doped ZAO confirm the presence of Zn, Al, O and Cu at 2+ , 3+ , 2− and 2+ oxidation states, respectively. The bandgap of Cu-doped ZAO nanosheets is less than that of pure ZAO. Due to the tunable bandgap, the synthesized material can be used as a potential candidate for energy-based applications.
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Akika FZ, Benamira M, Lahmar H, Trari M, Avramova I, Suzer Ş (2020) Structural and optical properties of Cu-doped ZnAl2O4 and its application as photocatalyst for Cr(VI) reduction under sunlight. Surf Interfaces 18:100406. https://doi.org/10.1016/j.surfin.2019.100406
Chen Z, Zhao X, Wei S (2021) Comparative study on sol-gel combined with a hydrothermal synthesis of ZnAl2O4 and ZnO/ZnAl2O4 nanocomposites and its photoluminescence properties and antibacterial activity. Optik 242:167151. https://doi.org/10.1016/j.ijleo.2021.167151
Esgin H, Caglar Y, Caglar M (2022) Photovoltaic performance and physical characterization of Cu doped ZnO nanopowders as photoanode for DSSC. J Alloys Compd 890:161848. https://doi.org/10.1016/j.jallcom.2021.161848
Gurugubelli T, Babu B, Yoo K (2021a) Structural, optical, and magnetic properties of cobalt-doped ZnAl2O4 nanosheets prepared by hydrothermal synthesis. Energies 14:2869. https://doi.org/10.3390/en14102869
Gurugubelli TR, Babu B, Kim J, Yoo K (2021b) Hydrothermal synthesis of Fe-doped ZnAl2O4 nanosheets: bandgap engineering and room temperature ferromagnetism. Chem Pap 75:6407–6416. https://doi.org/10.1007/s11696-021-01807-4
Hachem K, Bokov D, Farahani MD, Mehdizade B, Kazemzadeh Farizhandi AA (2022) Ultrasound-assisted adsorption of dyes and cadmium ion from aqueous solutions by ZnAl2O4 nanoparticles. Mater Chem Phys 276:125398. https://doi.org/10.1016/j.matchemphys.2021.125398
Huang S, Wei Z, Wu X, Shi J (2020) Optical properties and theoretical study of Mn doped ZnAl2O4 nanoparticles with spinel structure. J Alloys Compd 825:154004. https://doi.org/10.1016/j.jallcom.2020.154004
Jubu PR, Yam FK, Igba VM, Beh KP (2020) Tauc-plot scale and extrapolation effect on bandgap estimation from UV–vis–NIR data—a case study of β-Ga2O3. J Solid State Chem 290:121576. https://doi.org/10.1016/j.jssc.2020.121576
Liu C, Xu J, Zhiani R (2022) Synthesis of nanofibrous ZnAl2O4 for hydrogenation of CO2 to formate. Inorg Chem Commun 139:109392. https://doi.org/10.1016/j.inoche.2022.109392
Masmali NA, Osman Z, Arof AK (2021) Recent developments in zinc-based two-cation oxide spinels: from synthesis to applications. Ceram Int 47:2949–2962. https://doi.org/10.1016/j.ceramint.2020.09.249
Mekprasart W, Boonyarattanakalin K, Pecharapa W, Ishihara KN (2018) Optical characteristics of samarium doped ZnAl2O4 nanomaterials synthesized by vibrational milling process. Mater Today Proc 5:14126–14130. https://doi.org/10.1016/j.matpr.2018.02.076
Moustafa MG, Sanad MMS (2022) Green fabrication of ZnAl2O4-coated LiFePO4 nanoparticles for enhanced electrochemical performance in Li-ion batteries. J Alloys Compd 903:163910. https://doi.org/10.1016/j.jallcom.2022.163910
Mulwa WM, Dejene BF, Onani MO, Ouma CNM (2017) Effect of Cu2+ doping on the structural, electronic and optical properties of ZnAl2O4: a combined experimental and DFT+U study. J Lumin 184:7–16. https://doi.org/10.1016/j.jlumin.2016.12.008
Pan L, Wang Y, Yin L, Townsend PD (2021) Influence of co-doping germanium ions on the long persistent near-infrared luminescence of ZnAl2O4:Cr3+. Opt Mater 119:111390. https://doi.org/10.1016/j.optmat.2021.111390
Rahman A, Charoo MS, Jayaganthan R (2015) Structural, optical and photocatalytic properties of zinc aluminate spinel nanoparticles. Mater Technol 30:168–176. https://doi.org/10.1179/1753555714Y.0000000211
Rao Gurugubelli T, Babu B, Kim J, Yoo K (2022) Efficient photoelectrochemical water oxidation and electrochemical supercapacitor performance of ZnAl2O4 hexagonal microstructures. Mater Lett 313:131812. https://doi.org/10.1016/j.matlet.2022.131812
Siara S, Elvis C, Harishkumar R, Velayudhaperumal Chellam P (2022) ZnAl2O4 supported on lychee-biochar applied to ibuprofen photodegradation. Mater Res Bull 145:111530. https://doi.org/10.1016/j.materresbull.2021.111530
Srinatha N, Rudresh Kumar KJ, Suresh Kumar MR, Madhu A, Angadi B (2022) A novel combustion fuel for the synthesis of nanocrystalline ZnAl2O4 particles based on the thermodynamic correlations and their structural and optical studies. Ceram Int 48:3669–3675. https://doi.org/10.1016/j.ceramint.2021.10.148
Thirumala Rao G, Babu B, Joyce Stella R, Pushpa Manjari V, Ravikumar RVSSN (2015) Spectral investigations on undoped and Cu2+ doped ZnO–CdS composite nanopowders. Spectrochim Acta Part A 139:86–93. https://doi.org/10.1016/j.saa.2014.12.021
Wang S-F, Sun G-Z, Fang L-M, Lei L, Xiang X, Zu X-T (2015) A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials. Sci Rep 5:12849. https://doi.org/10.1038/srep12849
Zhu B, Ren S, Zhang D, Wang Q, Yang B, Wang Q, Li S, Wang W, Zhang B, Liu C (2021) Tuning structural and optical characteristics with Mn2+ introduced into ZnAl2O4:Cr3+ nanophosphors: energy transfer process and cations rearrangement. J Lumin 239:118362. https://doi.org/10.1016/j.jlumin.2021.118362
Acknowledgements
The authors (Lakshmiprasad and Thirumala Rao) would like to express their gratitude to the GMR Institute of Technology in India for funding this research through SEED grant. This work was supported by the Technology Innovation Program (Grant Number: 20011622) funded By the Ministry of Trade, Industry & Energy (MOTIE, South Korea) and Korea Electric Power Corporation (Grant Number: R21XO01-9).
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Maddi, L., Gurugubelli, T.R., Babu, B. et al. Effect of Cu2+ doping on the structural and optical properties of ZnAl2O4 nanosheets. Chem. Pap. 77, 241–248 (2023). https://doi.org/10.1007/s11696-022-02480-x
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DOI: https://doi.org/10.1007/s11696-022-02480-x