Synthesis of CuCo2O4-MgO spinel composite as an adsorbent surface for removal of celestine blue B dye

Kadhim, Ali A.; Al-Da’amy, Muneer A.; Kadhim, Salih Hadi

doi:10.1063/5.0156733

Cited by 1 publication

(2 citation statements)

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“…Next, the precipitate was dried at 120 °C for 24 h. After that, it was calcinated at 450 °C for 4 h, following the preparation method described in the previous study [16]. Magnesium oxide was also prepared separately by precipitation method from its aqueous nitrate at the same conditions [17]. Then, the copper and cobalt oxides were loaded on magnesium oxide at a ratio of 0.4 of dual oxide to 0.6 of magnesium oxide and mixed very well in 100 mL of distilled water using ultrasound for 30 min.…”

Section: Synthesis Of Composite Spinel Oxidementioning

confidence: 99%

“…Then, the copper and cobalt oxides were loaded on magnesium oxide at a ratio of 0.4 of dual oxide to 0.6 of magnesium oxide and mixed very well in 100 mL of distilled water using ultrasound for 30 min. The homogeneous oxides were filtered and dried, then calcined at 450 °C for 4 h. This is a modification of the method used by Kadhim [17] for preparing CuCo 2 O 4 /MgO.…”

Section: Synthesis Of Composite Spinel Oxidementioning

confidence: 99%

See 1 more Smart Citation

Adsorption of Malachite Green Oxalate Dye by CuCo2O4/MgO Spinel Oxide Nanocomposite

Mgheer,

Kadhim,

Hussein

et al. 2023

Indones. J. Chem.

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The current study involves a synthesis of a composite of copper oxide and cobalt oxide as a spinel oxide load over magnesium oxide. This synthesis of nanocomposite material was from nitrate salts of the corresponding metals by co-precipitation method, while it was investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction techniques (XRD), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and the activity of these materials was estimated by appreciated adsorption of malachite green oxalate (MGO) dye from its aqueous solution. Adsorption isotherm was investigated using both Freundlich and Langmuir adsorption isotherms. While the results of the spectrophotometric studies showed that the composition of synthesized supported oxides at 450 °C was spinel type with nanoparticle size, and the optimum removal efficiency was around 98% for the adsorption of MGO dye over spinel nanocomposite surface achieved by using a dye concentration of 5 ppm, a mass of adsorbent surface of 5 mg, in terms of the adsorption model's isotherms the obtained results showed that the removal of MGO dye by the surface of this material was more fitted with the Freundlich models' adsorption.

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Section: Synthesis Of Composite Spinel Oxidementioning

confidence: 99%

Section: Synthesis Of Composite Spinel Oxidementioning

confidence: 99%