Using PVA@WNS Composite as Adsorbent for Methylene Blue Dye from Aqueous Solutions
Publish place: Journal of Medicinal and Chemical Sciences، Vol: 5، Issue: 7
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMCH-5-7_018
تاریخ نمایه سازی: 12 شهریور 1401
Abstract:
The PVA@WNS composite has been successfully prepared by attaching the polyvinyl alcohol and Walnut shell powder with (۱:۱) ratio from plant and has been analyzed by using FT-IR, SEM, and AFM, and then it was used as an adsorbent of methylene blue dye from synthetic wastewater. The adsorption of MB dye on the PVA@WNS composite was studied as a function of contact time and concentration. Isotherm adsorption was also described by the Langmuir and Freundlich models. It was found that Langmuir isotherm (R۲= ۰.۹۳۳) is better than the Freundlich model (R۲= ۰.۹۲۵) which implies that the MB adsorption on PVA@WNS composite was monolayer. Thus, qmax calculated from the Langmuir model was found to be ۵.۹۳۸ mg.g−۱ and was consistent with the experimental data. The synthesized PVA@WNS composite showed an excellent activity towards the removal of methylene blue from synthetic wastewater.
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Authors
Samia Mezhr Merdas
College of Science, University of Thi-Qar, Iraq
Wed Al-Graiti
College of Dentistry, University of Thi-Qar, Thi-Qar, Iraq
Aliaa Shakir Abd Al-Ameer
College of Science, University of Thi-Qar, Iraq
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