Articles Information
Journal of Nanoscience and Nanoengineering, Vol.7, No.1, Mar. 2021, Pub. Date: Jul. 26, 2021
Photocatalytic Performance of Ca Doped ZnO Nanostructure Synthesized Via UV Incubator Shaker
Pages: 1-9 Views: 1319 Downloads: 458
Authors
[01]
Esraa Abdala, Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.
[02]
Omer Nur, Department of Science and Technology, Campus Norrköping, Linkoping University, Norrköping, Sweden.
[03]
Mustafa Abbas Mustafa, Materials and Nanotechnology Research Centre, University of Khartoum, Khartoum, Sudan.
Abstract
The ZnO nanostructures were synthesized and doped with different concentrations of Ca (0.01, 0.03, 0.05 M) via the co-precipitation method using an incubator shaker with UV light at a temperature of 45°C and at 200 rpm. The precursors used were Zn(NO3)2·6H2O, Ca(NO3)2·4H2O and NaOH. The morphological and structural properties were investigated by using different characterization techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), energy dispersive spectra (EDS) and UV-visible spectroscopy. The average crystallite sizes of the samples were calculated by using the Debye-Scherrer's formula and were found to be in the nanorange. SEM images revealed that using UV light leads to the formation of high crystalline nanorods while non exposed UV light samples formed nanoparticles with less crystallinity. EDS shows that the synthetic route followed produced highly pure ZnO nanostructures. Finally the prepared samples were used as a photocatalyst to remove the Methylene blue (MB) dye. Observations showed that samples prepared without UV light have a smaller band gap and better photocatalytic degradation of Methylene blue compared to the UV light samples. The degradation of the MB dye achieved was 86.5 % and 96.93% for CZOUV and CZONUV respectively following 10 min of treatment.
Keywords
Calcium Doping, MB Degradation, UV Light, Co-precipitation
References
[01]
Sadollahkhani, A., Kazeminezhad, I., et al. (2014) ‘Synthesis, structural characterization and photocatalytic application of ZnO@ZnS core-shell nanoparticles’, RSC Advances. Royal Society of Chemistry, 4 (70), pp. 36940–36950. doi: 10.1039/c4ra05247a.
[02]
Raou, D. (2013) ‘Synthesis and microstructural properties of ZnO nanoparticles prepared by precipitation method’, 50, pp. 932–937. doi: 10.1016/j.renene.2012.08.076.
[03]
Vaseem, M., Umar, A. and Hahn, Y. (1988) ZnO Nanoparticles : Growth, Properties, and Applications.
[04]
Ni, Y. H. et al. (2005) ‘Hydrothermal preparation and optical properties of ZnO nanorods’, Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 121 (1–2), pp. 42–47. doi: 10.1016/j.mseb.2005.02.065.
[05]
Kumar, S. S., Venkateswarlu, P., Rao, V. R. and Rao, Gollapalli Nageswara (2013) ‘Synthesis, characterization and optical properties of zinc oxide nanoparticles’, International Nano Letters, 3 (1), p. 30. doi: 10.1186/2228-5326-3-30.
[06]
Shen, W. et al. (2008) ‘Photocatalytic degradation for methylene blue using zinc oxide prepared by codeposition and sol-gel methods’, Journal of Hazardous Materials, 152 (1), pp. 172–175. doi: 10.1016/j.jhazmat.2007.06.082.
[07]
Jang, Y. J., Simer, C. and Ohm, T. (2006) ‘Comparison of zinc oxide nanoparticles and its nano-crystalline particles on the photocatalytic degradation of methylene blue’, Materials Research Bulletin, 41 (1), pp. 67–77. doi: 10.1016/j.materresbull.2005.07.038.
[08]
Yousefi, R. et al. (2015) ‘Enhanced visible-light photocatalytic activity of strontium-doped zinc oxide nanoparticles’, Materials Science in Semiconductor Processing, 32, pp. 152–159. doi: 10.1016/j.mssp.2015.01.013.
[09]
Bai, X. et al. (2013) ‘Performance enhancement of ZnO photocatalyst via synergic effect of surface oxygen defect and graphene hybridization’, Langmuir, 29 (9), pp. 3097–3105. doi: 10.1021/la4001768.
[10]
Water, W. and Yang, Y. S. (2006) ‘The influence of calcium doped ZnO films on Love wave sensor characteristics’, Sensors and Actuators, A: Physical, 127 (2), pp. 360–365. doi: 10.1016/j.sna.2005.12.023.
[11]
Udayabhaskar, R., Mangalaraja, R. V. and Karthikeyan, B. (2013) ‘Thermal annealing induced structural and optical properties of Ca doped ZnO nanoparticles’, Journal of Materials Science: Materials in Electronics, 24 (9), pp. 3183–3188. doi: 10.1007/s10854-013-1225-z.
[12]
Santangelo, S. et al. (2017) ‘Effect of calcium- and/or aluminum-incorporation on morphological, structural and photoluminescence properties of electro-spun zinc oxide fibers’, Materials Research Bulletin. Elsevier Ltd, 92, pp. 9–18. doi: 10.1016/j.materresbull.2017.03.062.
[13]
Srivastava, A. et al. (2014) ‘Blue-light luminescence enhancement and increased band gap from calcium- doped zinc oxide nanoparticle films Materials Science in Semiconductor Processing Blue-light luminescence enhancement and increased band gap from calcium-doped zinc oxide nanoparticl’, Materials Science in Semiconductor Processing. Elsevier, 26 (December 2017), pp. 259–266. doi: 10.1016/j.mssp.2014.05.001.
[14]
Slama, R. et al. (2016) ‘Effect of Ca-doping on microstructure and photocatalytic activity of ZnO nanoparticles synthesized by sol gel method’, Journal of Materials Science: Materials in Electronics. Springer US, 27 (8), pp. 7939–7946. doi: 10.1007/s10854-016-4786-9.
[15]
Wu, J. M. and Chen, Y. R. (2011) ‘Ultraviolet-light-assisted formation of ZnO nanowires in ambient air: Comparison of photoresponsive and photocatalytic activities in zinc hydroxide’, Journal of Physical Chemistry C, 115 (5), pp. 2235–2243. doi: 10.1021/jp110320h.
[16]
Praus, P., Tokarský, J. and Svoboda, L. (2015) ‘Contribution to synthesis of ZnO nanoparticles by UV irradiation-assisted precipitation’, NANOCON 2015 - 7th International Conference on Nanomaterials - Research and Application, Conference Proceedings.
[17]
Vinodkumar Etacheri, Roshith Roshan, and V. K. (2014) ‘Mg-Doped ZnO Nanoparticles for Efficient Mg-Doped ZnO Nanoparticles for E ffi cient Sunlight-Driven’, (May 2012). doi: 10.1021/am300359h.
[18]
Dhahri, R. et al. (2017) ‘Sensors and Actuators B : Chemical Enhanced performance of novel calcium / aluminum co-doped zinc oxide for CO 2 sensors’, Sensors & Actuators: B. Chemical. Elsevier B. V., 239, pp. 36–44. doi: 10.1016/j.snb.2016.07.155.
[19]
Ghiloufi, I. et al. (2016) ‘Preparation and characterization of Ca-doped zinc oxide nanoparticles for heavy metal removal from aqueous solution’, MRS Advances, 1 (53), pp. 3607–3612. doi: 10.1557/adv.2016.511.
[20]
Kumar, S. S., Venkateswarlu, P., Rao, V. R. and Rao, Gollapalli Nagewsara (2013) ‘Synthesis, characterization and optical properties of zinc oxide nanoparticles’, pp. 1–6.
[21]
Ghosh, S. P. (2012) ‘SYNTHESIS AND CHARACTERIZATION OF ZINC OXIDE NANOPARTICLES BY SOL-GEL PROCESS Synthesis and Characterization of Zinc Oxide Nanoparticles by Sol-Gel Process’, Master’s Thesis, (410). doi: ARTN 51\r10.1186/s12916-015-0290-y.
[22]
Raoufi, D. (2013) ‘Synthesis and microstructural properties of ZnO nanoparticles prepared by precipitation method’, Renewable Energy, 50, pp. 932–937. doi: 10.1016/j.renene.2012.08.076.
[23]
Greene, L. E. et al. (2005) ‘General route to vertical ZnO nanowire arrays using textured ZnO seeds’, Nano Letters, 5 (7), pp. 1231–1236. doi: 10.1021/nl050788p.
[24]
Ngamcharussrivichai, C., Totarat, P. and Bunyakiat, K. (2008) ‘Ca and Zn mixed oxide as a heterogeneous base catalyst for transesterification of palm kernel oil’, Applied Catalysis A: General, 341 (1–2), pp. 77–85. doi: 10.1016/j.apcata.2008.02.020.
[25]
Photocatalysis, S. (2014) ‘Mg-Doped ZnO Nanoparticles for Efficient Mg-Doped ZnO Nanoparticles for E ffi cient Sunlight-Driven’, (May 2012). doi: 10.1021/am300359h.
[26]
Kamarulzaman, N., Kasim, M. F. and Rusdi, R. (2015) ‘Band Gap Narrowing and Widening of ZnO Nanostructures and Doped Materials’, Nanoscale Research Letters. Nanoscale Research Letters, 10 (1). doi: 10.1186/s11671-015-1034-9.
[27]
Ions, K. M. et al. (2018) ‘Defect Induced Band Gap narrowing of Zinc Oxide Nanoparticles using Li +, Defect Induced Band Gap narrowing of Zinc Oxide Nanoparticles using Li +, Na + and K + Metal Ions as a Dopant’, (March).
[28]
Shahabuddin, S., Sarih, N. M. and Mohamad, S. (2016) ‘Nanocomposites with Enhanced Photocatalytic Degradation of Methylene Blue under Visible Light’. doi: 10.3390/polym8020027.