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2025-11-11
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Copyright (c) 2025 Hayder H. Shubbar, Khudhair M. Mahdi, Khamael abdulsalam Abdul halwas*, Layth S. Jasim, Maryam Batool
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Environmental Remediation of Malachite Green Dye by Use of SA-g-P(AAc-MA)/TiO2 Nanocomposite
Hayder H. Shubbar
Department of Pathological Analyzes, College of Science, University of AL-Qadisiyah, Al Quadisiya,58002, Iraq
Khudhair M. Mahdi
Department of Chemistry, University of Sumer, College of Education, Thi-Qar, 64004, Iraq
Khamael abdulsalam Abdul halwas
Department of Environment, College of Science, University of AL-Qadisiyah, 58002, Iraq
Layth S. Jasim
Department of Chemistry, College of Education, University of Al-Qadisiyah, Diwaniyah, 58002, Iraq
Maryam Batool
Department of Chemistry, University of Sahiwal, Sahiwal, 57000, Pakistan
DOI: https://doi.org/10.59429/ace.v8i4.5785
Keywords: Malachite green dye; hydrogel; titanium dioxide; nanocomposite; adsorption; water treatment
Abstract
This study involved the use of sodium alginate (SA)-g-poly (acrylic acid (AAc)-maleic acid (MA))/titanium dioxide (SA-g-P(AAc-MA)/TiO2) nanocomposite. The material undergo synthesis by the method of free radical copolymerization for its application in malachite green (MG) dye removal from water. The analysis of the prepared material was carried out by various analytical methods that revealed the presence of different functional groups on the adsorbent’s heterogeneous and porous surface. The findings of study showed that nearly 99.56% of MG dye removal take place when solution pH was 2 within 180 min at room temperature. The maximal capacity of adsorbent for dye removal was observed to be 185.2 mg/g. Overall, the study followed pseudo second kinetic and Freundlich isotherm model. Thermodynamic analysis demonstrated the process was spontaneous (ΔG = -13.233 kJ/mol) and endothermic (ΔH = 27.088 kJ/mol). These results of study showed effectiveness of nanocomposite for dye adsorption from water.
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