Synthesis and characterization of ZrO2/CeO2 nanocomposites for efficient removal of Acid Green 1 dye from aqueous solution

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Vol. 269; p. 115167
• Main Authors: Ali, Ayman A., Shama, Sayed A., Amin, Alaa S., EL-Sayed, Sahar R.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01-07-2021; Elsevier BV
• Subjects: Acid Green 1; Adsorbents; Adsorption; Aqueous solutions; Cerium oxides; Chemical precipitation; Combustion-ultrasonication method; Coprecipitation method; Dyes; Emission analysis; Emission spectra; Field emission microscopy; Fourier transforms; High resolution electron microscopy; Infrared spectra; Microscopy; Nanocomposites; Zirconium dioxide; ZrO2/CeO2 nanocomposites; Coprecipitation method; ZrO2/CeO2 nanocomposites; Adsorption; Combustion-ultrasonication method; Acid Green 1
• ISSN: 0921-5107; 1873-4944
• DOI: 10.1016/j.mseb.2021.115167

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•ZrO2/CeO2 nanocomposites were prepared using coprecipitation and combustion-ultrasonication methods.•The adsorption factors of the removal of Acid Green 1 on the synthesized nanocomposites were studied using a batch method.•The adsorption isotherm, kinetic and mechanism models are investigated, and thermodynamic factors were studied at 293, 298 and 303 K.•ZrO2/CeO2 adsorbents were used as nano adsorbent for the removal of Acid Green 1.
ZrO2/CeO2 nanocomposites were prepared using the co-precipitation (ZCP11, ZCP12 and ZCP21 samples) and hybrid combustion-ultrasonication (ZC11, ZC12 and ZC21 samples) methods, following by the calcination. The characterization of the synthesized ZrO2/CeO2 nanocomposites was achieved by utilizing several analytical techniques such as High-resolution transmission electron microscopy, X-ray diffraction, Fourier transforms infrared spectra, BET method and Field emission scanning electron microscopy. The optimum conditions were evaluated from the batch method: pH = 3, 250 mg/L of AG1 dye, 0.05 g dose adsorbents, and equilibrium time (90–200 min according to the sample). The adsorption isotherm, kinetic and mechanism models analyzed using the extracted experimental data for the elimination of Acid Green 1 dye over ZCP11 and ZC11 samples. Besides, the thermodynamic factors were investigated at 293–303 K. The optimum conditions were employed for the fabricated ZrO2/CeO2 nanocomposite samples and the best adsorbent were reused for the elimination of AG1 dye.