Synthesis, characterization and photocatalytic properties of nanoparticles CuAl2O4 by Pechini method using Taguchi statistical design

Naderi, Mahnaz; Shamirian, Armen; Edrisi, Mohammad

doi:10.1007/s10971-011-2427-6

Cited by 19 publications

(7 citation statements)

References 27 publications

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“…The mesoporosity of the samples was confirmed by analyzing the average pore size distribution using the Barrett-Joyner-Halenda (BJH) method. Average pore size distribution graphs are available in Figure 5d-f, which show a predominant distribution in the mesoporous structure region (2 < average pore size < 50 nm) [22].…”

Section: N2 Adsorption-desorption Isothermsmentioning

confidence: 99%

“…Commercial zinc aluminate has a low surface area and low pore volume, characteristics that make contact with the material to be degraded and the photocatalyst less favorable. However, obtaining this material by different synthesis routes has significantly improved its properties, thus allowing it to be used with greater efficiency in photocatalysis [16,[18][19][20][21][22]. ZnAl 2 O 4 has a wide bandgap, making it suitable for photocatalytic applications in the ultraviolet range.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

et al. 2020

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A new mesoporous Zn1-xMxAl2O4 photocatalyst was prepared using the metal-chitosan complexation method with different degrees of Zn2+ cation substitution with cobalt and nickel ions (M = Co2+ and Ni2+). Characterization using X-ray diffraction (XRD), Infrared absorption spectrometry (FTIR), energy dispersion spectroscopy (EDS), diffuse reflectance spectrometry (DRS), scanning electron miscoscopy (SEM), transmission electron miscroscopy (TEM), N2 adsorption- desorption isotherms using the Barrett-Joyner-Halenda (BJH) method, thermogravimetric analysis (TG) and differential thermal analysis (DTA) confirmed the formation of the spinel phase and high purity for all samples. N2 adsorption/desorption and size pore distribution confirmed the high surface area. The photocatalytic activity of Zn1-xMxAl2O4 and the effect of replacing Zn2+ ions with Ni2+ and Co2+ on the degradation of rhodamine B under ultraviolet light were studied in detail. The sample containing 0.1 mol of cobalt had the highest removal rate reaching 83%, favored by surface area and material bandgap (109 m2 g−1 and 2.19 eV, respectively).

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Section: N2 Adsorption-desorption Isothermsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

et al. 2020

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“…It should be mentioned that the present self-generated template method is superior to the well-established Pechini methods in preparing porous structure, since when using the latter methods, [17][18][19] the precursor gel were always directly calcined in air, which does not facilitate the formation of carbon template necessary for porous structure.…”

Section: Experimental Details 21 Sample Preparationmentioning

confidence: 99%

MgAl2O4 nanoparticles: A new low-density additive for accelerating thermal decomposition of ammonium perchlorate

Guan

Zheng

et al. 2011

RSC Adv.

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Developing low-density additives with high activities is significantly important for thermal decomposition of ammonium perchlorate and the relative technical applications. In this paper, nanoparticles of magnesium aluminate (MgAl 2 O 4 ) with a low density of 3.02-3.17 g cm 23 were synthesized by a self-generated template path, in which citric acid was introduced to ensure homogeneous distribution of metal cations at atomic level and serve as the carbon source of the selfgenerated carbon template. Carbon template was generated by pyrolysis and carbonization of citrate after calcinations at 800 uC in N 2 , and then removed with annealing in air at high temperatures, resulting in porous MgAl 2 O 4 with a specific surface area as high as 291 m 2 g 21 . Depending on the annealing temperatures, the primary sizes of MgAl 2 O 4 nanoparticles that built up the porous structures were adjusted from 6.2 to 24.7 nm. The structural characteristics of MgAl 2 O 4 nanoparticles were systematically studied by X-ray diffraction, transmission electron microscopy, Braun-Emmet-Teller analysis, and the catalytic role were evaluated by thermal decomposition of ammonium perchlorate. All samples were indicated to be X-ray-pure MgAl 2 O 4 , among which MgAl 2 O 4 nanoparticles with a largest surface area of 291 m 2 g 21 and pore volume of 0.24 cm 3 g 21 was proved to have an optimum catalytic activity: exothermic peaks of AP thermal decomposition shifted towards the lower temperatures by 78.3 uC for high-temperature decomposition process. The relative kinetic process was also investigated.

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“…These peaks are in close agreement with other synthesis methods. [31,45,46] The band at 3200À3700 cm ¡1 was attributed to the longitudinal vibrations of the OH bond in water. The band at 1643 cm ¡1 was due to the bending of the HÀOÀH bond of water.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Diffusion-controlled growth of CuAl₂O₄ nanoparticles: effect of sintering and photodegradation of methyl orange

Menon

Kulkarni

Choudhari

et al. 2016

Journal of Experimental Nanoscience

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Facile synthesis of CuAl 2 O 4 and sintering effects on the phase composition are reported. Annealing at 500 C showed only CuO phase and the spinel phase started evolving at 700 C with the concurrent decrease in the CuO phase. Diffusion-mediated growth of spinel phase was also observed at higher temperatures forming CuAl 2 O 4 at 1000 C. The material was stoichiometric and the average particle size was 55 nm, as evidenced by EDS and FE-SEM studies, respectively. The zeta potential of C30 mV and lower (0.346) value of the poly dispersive index (PDI), confirmed the high dispersability of CuAl 2 O 4 in water. The favourable band gap (2.2 eV) makes it suitable as visible light photocatalyst. Owing to its positive surface charge and conducive pH, material could adsorb anionic methyl orange dye. A total of 74% of the dye could be recovered by a simple methanolic extraction. The visible light photocatalysis of the same dye leads to 67% decolouration and the addition of H 2 O 2 accelerated the photodegradation to completion. The catalyst displayed excellent reusability and stability even after five successive runs.

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Synthesis, characterization and photocatalytic properties of nanoparticles CuAl2O4 by Pechini method using Taguchi statistical design

Cited by 19 publications

References 27 publications

Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

MgAl2O4 nanoparticles: A new low-density additive for accelerating thermal decomposition of ammonium perchlorate

Diffusion-controlled growth of CuAl₂O₄ nanoparticles: effect of sintering and photodegradation of methyl orange

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Synthesis, characterization and photocatalytic properties of nanoparticles CuAl2O4 by Pechini method using Taguchi statistical design

Cited by 19 publications

References 27 publications

Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

Synthesis of Mesoporous Zn1−xMxAl2O4 Substituted by Co2+ and Ni2+ Ions and Application in the Photodegradation of Rhodamine B

MgAl2O4 nanoparticles: A new low-density additive for accelerating thermal decomposition of ammonium perchlorate

Diffusion-controlled growth of CuAl2O4 nanoparticles: effect of sintering and photodegradation of methyl orange

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Diffusion-controlled growth of CuAl₂O₄ nanoparticles: effect of sintering and photodegradation of methyl orange