PhD Thesis in the Department of Chemistry Highlights the Preparation, Characterization, and Adsorption of Azo Dyes Using Nanomaterials

Byإعلام كلية التربية للعلوم الصرفة جامعة سامراء Reading Time: 1 minute

A PhD thesis in the Department of Chemistry at the College of Education for Pure Sciences, University of Samarra, discussed a dissertation titled: “Preparation and Characterization of Azo Dyes and the Study of Their Adsorption Using Different Nanomaterials,” presented by researcher Abeer Hussein Ali.
In her thesis, the researcher aimed to synthesize the Azo dye (VTA) via the prepared diazonium, in addition to synthesizing the Azo dye (TH). Both dyes were characterized using FTIR and HNMR techniques to verify their chemical properties. Furthermore, the study investigated several factors influencing the adsorption of both dyes (VTA, TH), measuring absorbance values using a UV-Visible spectrophotometer.
Regarding the findings, the results demonstrated that the synthesized nano-graphene oxide exhibited a high capacity for adsorbing the prepared Azo dyes, confirming its effectiveness as an eco-friendly and cost-effective adsorbent. Additionally, adsorption equilibrium for the (VTA) dye on the graphene oxide (GO) surface was reached within 30 minutes at an optimal concentration of 50 ppm, while the (TH) dye reached equilibrium within 25 minutes at an optimal concentration of 40 ppm.
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