Photocatalytic removal of reactive yellow 145 dye from simulated textile wastewaters over supported (Co, Ni)3O4/Al2O3 co-catalyst

Mohammad, Emman J.; Lafta, Abbas J.; Kahdim, Salih H.

doi:10.1515/pjct-2016-0041

Cited by 22 publications

(14 citation statements)

References 51 publications

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“…The effect of silver decorated nanoparticles was a decrease of the possibility The obtained rate constant for Reactive Blue 250 using Zn 0.5 Ca 0.5 Fe 2 O 4 (sol-gel)/Ag (photodeposition) nanoparticles was similar to the reported value (k = 0.0885 min −1 ) for Reactive Blue 4 using pure anatase nano-TiO 2 under UV light [39]. Regarding RY145, the degradation rates were much lower but were higher than the value reported for this dye using a Ni 3 O 4 -Co 3 O 4 /Al 2 O 3 catalyst when pseudo-first-order kinetics was followed (k = 0.01623 min −1 ) [40]. The different degradation rates of the two reactive azo dyes must be related to chemical structure variations, as already observed in the photodegradation of azo dyes using ZnO nanoparticles [41].…”

Section: Photodegradation Assayssupporting

confidence: 87%

Photodeposition of Silver on Zinc/Calcium Ferrite Nanoparticles: A Contribution to Efficient Effluent Remediation and Catalyst Reutilization

et al. 2021

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The efficient photodegradation of textile dyes is still a challenge, especially considering resistant azo dyes. In this work, zinc/calcium mixed ferrite nanoparticles prepared by the sol–gel method were coupled with silver by a photodeposition method to enhance the photocatalytic potency. The obtained zinc/calcium ferrites are mainly cubic-shaped nanoparticles sized 15 ± 2 nm determined from TEM and XRD and an optical bandgap of 1.6 eV. Magnetic measurements indicate a superparamagnetic behavior with saturation magnetizations of 44.22 emu/g and 27.97 emu/g, respectively, for Zn/Ca ferrite and Zn/Ca ferrite with photodeposited silver. The zinc/calcium ferrite nanoparticles with photodeposited silver showed efficient photodegradation of the textile azo dyes C.I. Reactive Blue 250 and C.I. Reactive Yellow 145. Subsequent cycles of the use of the photocatalyst indicate the possibility of magnetic recovery and reutilization without a significant loss of efficiency.

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Section: Photodegradation Assayssupporting

confidence: 87%

Photodeposition of Silver on Zinc/Calcium Ferrite Nanoparticles: A Contribution to Efficient Effluent Remediation and Catalyst Reutilization

et al. 2021

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“…8, which show the increasing catalytic activity of dye decolorization by increasing the amount of catalyst from 0.02 to 0.08 g. Possibly, this is due to the increasing of active sites number on the surface of catalyst and then increasing the decolorization of dye. Increasing the catalyst [18][19][20] by the agglomeration of catalyst particles (increasing the turbidity). This can lead to light scattering and prevent it from transmitted to the inner reaction mixture which leads to a decrease in the efficiency of CBB dye over the used catalyst [21].…”

Section: Decolorization Efficiency Of Cbb Dye Over Different Weights mentioning

confidence: 99%

Synthesis, Characterization and Catalytic Activity of NiO-CoO-MgO Nano-Composite Catalyst

et al. 2019

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The ternary NiO-CoO-MgO catalyst in three ratios 20:20:60, 25:25:50, and 30:30:40 for these component oxides respectively, were synthesized by co-precipitation method of their carbonates by addition of a precipitate agent in basic media, and then calcinated these carbonate to obtain of mixed oxides. The prepared catalysts were characterized by using Powder X-Ray Diffraction (PXRD), Fourier Infrared spectroscopy (FT-IR), and Atomic Force Microscopy techniques (AFM) were used for identification of the prepared catalysts. The result showed that the particle size of these catalyst ratios, were in the nano range and the smallest size was 25:25:50. The investigation of catalytic activity of prepared catalysts was done by photo decolorization of Celestine blue B dye from simulated industrial wastewaters in aqueous solution. The decolorization efficiency of dye reached 99.9% after irradiation time for 1 h. Study the effect of different reaction conditions such as the pH of the medium, the weight of semiconductor and temperature of mixture reaction were shown that the maximum degradation was observed in conditions at pH = 4, catalyst dosage = 0.08 g, and temperature = 303 K.

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“…Also different modified forms of these photocatalyst include doped oxides with metals and non-metals, activated carbons/photocatalysts and coupled oxides [8,9]. On other hand, both of single MgO and Ni3O4 was used in treatment of polluted industrial wastewaters in heterogeneous photocatal-ysis systems and it was found that these polluted dyes in the polluted wastewaters were mineralized into CO2, H2O and some other volatile and inorganic materials [10,11].…”

Section: Photocatalytic Decolorization Of Celestine Blue B From Indusmentioning

confidence: 99%

Photocatalytic Decolorization of Celestine Blue B from Industrial Wastewater Using Ni3O4-MgO Coupled Oxides

Kahdum¹,

Karaem²,

Hussein³

et al. 2018

Asian J. Chem.

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This study describes the preparation of coupled oxide Ni3O4-MgO using co-precipitation method using their corresponding nitrates as precursor materials to prepare these coupled oxides. The prepared oxides were investigated with X-ray diffraction and Fourier transform infrared spectroscopy. The photocatalytic activity of this material was investigated by following removal of Celestine blue B dye from simulated industrial wastewaters. Different reaction conditions were undertaken to reach optimum conditions for dye removal. These conditions involve performing different catalyst loading, effect of contact time and effect of pH of reaction mixture. The remaining concentration of Celestine blue B dye over the period of reaction mixture was calculated spectroscopically by measuring the absorbance of supernatant liquid at 648 nm. From the results, it was found that the optimum conditions for dye removal in this study was 0.20 g, pH 4 and a contact time of 30 min and the dye removal percentage under these conditions was found to be 89 %.

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Photocatalytic removal of reactive yellow 145 dye from simulated textile wastewaters over supported (Co, Ni)₃O₄/Al₂O₃ co-catalyst

Cited by 22 publications

References 51 publications

Photodeposition of Silver on Zinc/Calcium Ferrite Nanoparticles: A Contribution to Efficient Effluent Remediation and Catalyst Reutilization

Photodeposition of Silver on Zinc/Calcium Ferrite Nanoparticles: A Contribution to Efficient Effluent Remediation and Catalyst Reutilization

Synthesis, Characterization and Catalytic Activity of NiO-CoO-MgO Nano-Composite Catalyst

Photocatalytic Decolorization of Celestine Blue B from Industrial Wastewater Using Ni3O4-MgO Coupled Oxides

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