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Erschienen in: International Journal of Energy and Environmental Engineering 3/2021

06.03.2021 | Original Research

Facile synthesis of ZnO nanospheres by co-precipitation method for photocatalytic degradation of azo dyes: optimization via response surface methodology

verfasst von: Zainab Mohammad Redha, Hayat Abdulla Yusuf, Shaheer Burhan, Iftikhar Ahmed

Erschienen in: International Journal of Energy and Environmental Engineering | Ausgabe 3/2021

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Abstract

Zinc Oxide (ZnO) has been deemed as an excellent material for photocatalytic processes due to its high photosensitivity, suitable bandgap and low cost. This paper aims to optimize the synthesis process of ZnO nanoparticles via co-precipitation for the enhanced photodegradation of Methyl Orange (MO) textile. Two sets of experiments were conducted; each with different metal hydroxides (NaOH and KOH) used for the synthesis process. For each set, three factors were investigated: temperature, mixing time, and molar ratio of zinc salt to hydroxide salt. Response surface methodology (RSM) using centered central composite design (CCD) was employed to model and optimize the synthesis process with respect to the aforementioned factors. The success of the nanoparticles synthesis was confirmed by X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM). A hexagonal wurtzite crystal structure of as-synthesized ZnO NPs was observed with crystalline size of 24.2 nm. For 20-min UV illumination time, the optimization results revealed maximum degradation efficiency of 32.48% and 32.44% using NaOH and KOH, respectively. The optimum operating conditions for NaOH-based experiments were: temperature of 70 °C, 2.5 h of mixing time, and molar ratio of 1:8.5; while those for the KOH-based experiments were temperature of 60 °C, 1.5 h of mixing time, and molar ratio of 1:6. At optimum condition, these nanoparticles successfully achieved 94.82% degradation in 120 min. The reaction kinetics well fitted pseudo first-order model with a rate constant of 0.0227 min−1 and correlation value R2 of 0.9031.

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Literatur
3.
Zurück zum Zitat Tuncì, S., Duman, O., Gürkan, T.: Monitoring the decolorization of acid orange 8 and acid red 44 from aqueous solution using Fenton’s reagents by online spectrophotometric method: effect of operation parameters and kinetic study. Ind. Eng. Chem. Res. 52, 1414–1425 (2013). https://doi.org/10.1021/ie302126cCrossRef Tuncì, S., Duman, O., Gürkan, T.: Monitoring the decolorization of acid orange 8 and acid red 44 from aqueous solution using Fenton’s reagents by online spectrophotometric method: effect of operation parameters and kinetic study. Ind. Eng. Chem. Res. 52, 1414–1425 (2013). https://​doi.​org/​10.​1021/​ie302126cCrossRef
19.
Zurück zum Zitat Sarabia, L.A., Ortiz, M.C.: Response Surface Methodology. In: Comprehensive Chemometrics. pp. 345–390 (2009) Sarabia, L.A., Ortiz, M.C.: Response Surface Methodology. In: Comprehensive Chemometrics. pp. 345–390 (2009)
20.
Zurück zum Zitat Cavazzuti, M.: Optimization Methods: From theory to Design Scientific and Technological Aspects in Mechanics. Springer Science & Business Media 2012, Berlin (2013)CrossRef Cavazzuti, M.: Optimization Methods: From theory to Design Scientific and Technological Aspects in Mechanics. Springer Science & Business Media 2012, Berlin (2013)CrossRef
21.
Zurück zum Zitat Karian, Z.A., Dudewicz, E.J.: Handbook of Fitting Statistical Distributions with R. CRC Press, Taylor and Francis Group, Boca Roton (2016)CrossRef Karian, Z.A., Dudewicz, E.J.: Handbook of Fitting Statistical Distributions with R. CRC Press, Taylor and Francis Group, Boca Roton (2016)CrossRef
22.
Zurück zum Zitat Lazić, Ž.R.: Design and Analysis of Experiments: Sections 2.1–2.2. In: Design of Experiments in Chemical Engineering. pp. 157–262 (2005) Lazić, Ž.R.: Design and Analysis of Experiments: Sections 2.1–2.2. In: Design of Experiments in Chemical Engineering. pp. 157–262 (2005)
31.
32.
41.
Zurück zum Zitat Siswanto, Hariyanto, M.: Synthesis of ZnO Nanoparticles Using Mechano-Chemical Method by Utilizing 3D HEM (High Energy Milling). In: Journal of Physics: Conference Series (2020) Siswanto, Hariyanto, M.: Synthesis of ZnO Nanoparticles Using Mechano-Chemical Method by Utilizing 3D HEM (High Energy Milling). In: Journal of Physics: Conference Series (2020)
51.
Zurück zum Zitat Tju, H., Prakoso, S.P., Taufik, A., Saleh, R.: Synthesis and characterization of noble metal nanocomposites: Ag/Fe3O4/ZnO and Ag/Fe3O4/CuO/ZnO for better photocatalytic activity under visible light irradiation. In: IOP Conference Series: Materials Science and Engineering (2017) Tju, H., Prakoso, S.P., Taufik, A., Saleh, R.: Synthesis and characterization of noble metal nanocomposites: Ag/Fe3O4/ZnO and Ag/Fe3O4/CuO/ZnO for better photocatalytic activity under visible light irradiation. In: IOP Conference Series: Materials Science and Engineering (2017)
Metadaten
Titel
Facile synthesis of ZnO nanospheres by co-precipitation method for photocatalytic degradation of azo dyes: optimization via response surface methodology
verfasst von
Zainab Mohammad Redha
Hayat Abdulla Yusuf
Shaheer Burhan
Iftikhar Ahmed
Publikationsdatum
06.03.2021
Verlag
Springer Berlin Heidelberg
Erschienen in
International Journal of Energy and Environmental Engineering / Ausgabe 3/2021
Print ISSN: 2008-9163
Elektronische ISSN: 2251-6832
DOI
https://doi.org/10.1007/s40095-020-00380-y

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