Preparation, Characterization and Study of the Photodecolorization of Mixed-Ligand Binuclear Co(II) Complex of Schiff Base by ZnO

Abass, Suhad Kareem; Al-Hilfi, Jassim Abbas; Abbas, Sawsan Khudhair; Ahmed, Luma Majeed

doi:10.22146/ijc.44192

Cited by 17 publications

(7 citation statements)

References 16 publications

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“…and efficiency of dye photodecolorization (Edecolor. %) based on Langmuir-Hinshelwood (L-H) model by depending on the below equations 3and 4 [25][26][27].…”

Section: Methodsmentioning

confidence: 99%

Synergistic Effect of dark and photoreactions on the removal and photo-decolorization of azo carmosine dye (E122) as food dye using Rutile- TiO2 suspension

et al. 2021

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Dark and photoreactions have been employed to handle the various hazardous organic water contaminants as Synergistic technologies. The removal (dark reaction) and the photo-decolorization ( photoreaction) of azo carmosine dye (E122) as a food dye in an aqueous solution using Rutile-TiO2 and UV-A light were investigated in this work. Various parameters such as oxidant agents and temperature were determined. In dark reaction, the adsorption capacity and percentage of carmoisine dye removal elevated with the depressing of the temperature. This dark reaction of carmoisne dye is exothermic, physical adsorption, less random, non-spontaneous, and quick response with low activation energy. The maximum value removal % is reached to 86 % when addition mixing of Fe(II) and H2O2 to dye solution. In photoreaction, the same oxidant agents were applied in the dye solution and found the reaction is a pseudo-first-order kinetic, exothermic reaction, fast (low activation energies), less random, and spontaneous. The maximum percentage of decolorization with the addition of mixing of Fe(II) and H2O2 equal to 64.28% at 30 min.

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“…and efficiency of dye photodecolorization (Edecolor. %) based on Langmuir-Hinshelwood (L-H) model by depending on the below equations 3and 4 [25][26][27].…”

Section: Methodsmentioning

confidence: 99%

Synergistic Effect of dark and photoreactions on the removal and photo-decolorization of azo carmosine dye (E122) as food dye using Rutile- TiO2 suspension

et al. 2021

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“…The rate constant (kapp. )and photodecolorization efficiency percentage (PDE%) were determined depending on the initial concentration of dye (Co) at the adsorption process and residue dye concentration (Ct) under irradiation by the following equations [18][19][20][21][22][23][24][25][26][27].…”

Section: Photoreaction Of Chlorazol Black Bh Dye With Synthesis Photocatalystsmentioning

confidence: 99%

One-Step Hydrothermal Synthesis of α- MoO3 Nano-belts with Ultrasonic Assist for incorporating TiO2 as a NanoComposite

Obaid

Ahmed

2021

Egypt. J. Chem.

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One of the goals of this project was to utilize the hydrothermal method in preparation of α-MoO3 nano-belts as bluish power at 180 o C for 5h. This nanomaterial was incorporated with rutile-TiO2 to produce a nanocomposite photocatalyst by a direct ultrasonic method in a ratio of 0.25(α-MoO3): 9.75(TiO2) as w/w ratio. The characterized of samples found by X-ray diffraction(XRD), scan electron microscopy(SEM), and ultraviolet-visible spectrophotometry. The XRD analysis and SEM image for prepared α-MoO3 are proved the α-MoO3 is prepared as a nano-belts, but its composite is being as spherical with elevated if roughness of its surface after incorporation. The bandgap of α-MoO3 nanobelts increased from 2.8 eV to 2.95 eV after fabrication it surfaces with rutile-TiO2 that attitude to the small Mo 6+ ion incorporated with Ti 4+ of TiO2 matrix and both ions have a coordination number equal to 6 that enhanced this incorporation. XRD data indicated to all samples are having a nanosize, but SEM analysis proved all samples are polycrystals. The photocatalytic efficiency and the quantum yield for Chlorazol black BH dye decolorization using α-MoO3 nano-belts were investigated under UV-A light and observed it elevated with using its nanocomposite. That is due to elevating the acidity of α-MoO3 nano-belts surface after incorporating it in a rutile-TiO2 crystal lattice, which decreases the recombination and increases the generalization of hydroxyl radical. The photoreaction for using α-MoO3 nano-belts and its composite obeyed pseudo-first-order kinetics.

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“…In the last few years, several researches have predominated in many universities and research centers on the scientific ventures to mainly treat the contaminations that produced by textile factories [9][10][11], reduced the degradation of food's dye [12], decolorization of colored organometallic complexes [13], degradation of toxic cyclic compounds [14] and produced a hydrogen from alcohol as renewable energy [15]. The effective materials for all above mention research are generated the hydroxyl radical in aqueous solution with maximum oxidation power equals to 2.8 V [1].…”

Section: Advance Oxidation Process Applicationsmentioning

confidence: 99%

Bulk and Nanocatalysts Applications in Advanced Oxidation Processes

Ahmed¹

2021

Oxidoreductase

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Advanced oxidation processes (AOPs) are considered to be vital methods for treating the contaminations produced mainly by the human activations. In present-day, UV light or solar light, bulk and nano- photocatalysts are often used to enhance this technology by creating the highly reactive species such as the hydroxyl radicals. Extreme hydroxyl radical is considered as a key to start the photoreaction. Photoreaction is widely used in treatment of Lab and industrial contaminations, preparation of compounds and produced the renewable energy, so it’s classified as green technique. In order to improve the efficiency of this reaction with fabrication the surface of the used photocatalyst such as metal doped, sensitized and produced a composite as bulk catalyst or nano catalyst.

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Preparation, Characterization and Study of the Photodecolorization of Mixed-Ligand Binuclear Co(II) Complex of Schiff Base by ZnO

Cited by 17 publications

References 16 publications

Synergistic Effect of dark and photoreactions on the removal and photo-decolorization of azo carmosine dye (E122) as food dye using Rutile- TiO2 suspension

Synergistic Effect of dark and photoreactions on the removal and photo-decolorization of azo carmosine dye (E122) as food dye using Rutile- TiO2 suspension

One-Step Hydrothermal Synthesis of α- MoO3 Nano-belts with Ultrasonic Assist for incorporating TiO2 as a NanoComposite

Bulk and Nanocatalysts Applications in Advanced Oxidation Processes

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