Amer Muosa Juda's scientific contributions

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Publications (2)

Fig. 1-1. The degradation efficiency of Sun set yellow and Amaranth dyes in absence the UV radiation.
Fig. 1-2. The photodegradation efficiency of Sunset yellow and Amaranth dyes in absence the catalyst
Fig. 2-1. Effect of weight ZnO on photodegradation efficiency of Sunset yellow and Amaranth dyes.
Fig. 6-1. Kinetic analysis of Sunset yellow and Amaranth dyes under optimized conditions.
Thermodynamic and Kinetic Study for Aromatic Rings Effect on The Photooxidation rate
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June 2021

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132 Reads

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10 Citations

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Amer Muosa Juda

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Muthana Saleh

In this work, the effect of aromatic rings number on the photooxidation rate was studied by comparison photocatalytic degradation of an aqueous Sunset yellow, and Amaranth dyes by the suspension of ZnO catalyst. The effect of some parameters, such as mass of catalyst, initial dye concentration, initial pH of aqueous dye solution, and temperature were studied. The results indicate that the photo catalytic reactions are a pseudo first order reactions according to the Langmuir-Hinshelwood .Thermodynamic parameters such as: Ea, ΔH # , ΔS # and ΔG # were calculated .The activation energy has been found equal to, 5.493±1 and 5.088±1 kJ.mol-1 for Sunset yellow and Amaranth respectively. the results indicate that at low concentrations of dyes the number of aromatic rings has no effect on photooxidation rate but at higher concentrations we show the inversely relationship.

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Citations (1)

... Additionally, as MO concentration rises, fewer photons are able to reach the catalyst's surface, which lowers the amount of photodegradation [41]. The findings of this study are consistent with results from past research on liquid or gaseous organic pollutants, where the rate of degradation decreases with increasing concentration [42]. ...

Reference:

Synthesis of biodegradable antibacterial nanocomposite (metal-organic frameworks supported by chitosan and graphene oxide) with high stability and photocatalytic activities
Thermodynamic and Kinetic Study for Aromatic Rings Effect on The Photooxidation rate

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Amer Muosa Juda

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Muthana Saleh