Abstract
In this study, a noncommercial polyetheric-structured jeffamine-based crosslinker was used by being synthesized in the synthesis of a hydrogel of a cationic-structured p[2-(acryloyloxy)ethyl] trimethylammonium chloride p(AETAC). The hydrogels containing crosslinkers with five various percentages (0.1, 0.25, 0.75, 1) were synthesized and were aimed to be used as an adsorption material. For the applications, a 1% crosslinked hydrogel (GEL 5) was utilized for the adsorption of a mono-azo chemically structured anionic characterized methyl orange (C14H14N3NaO3S) (MO) colorant. The structure of the jeffamine-based crosslinker was inspired by FT-IR, 1H-NMR, 13C-NMR, and LC-MS analysis, while the hydrogel structure characterization was elucidated by FT-IR spectroscopy. The morphological structure of the hydrogel was examined using scanning electron microscopy (SEM), SEM-EDX, and elemental mapping methods. Concurrently, the mechanical resistance of GEL 5 was tested, and its swelling behavior was examined in different media and pH values. GEL 5, considered decent adsorbent material owing to its structural qualifications, was used in the toxic MO dye adsorption process. In adsorption studies, the maximum qe value of the GEL 5 hydrogel was 547.34 ± 40.00 mg/g in 1000 mg/L MO dye solution. Furthermore, desorption studies have shown that it has reusability, which is a crucial factor in adsorbent selection.
Author contributions
All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Zeynep Güngör. The first draft of the manuscript was written by Zeynep Güngör, Hava Ozay commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Competing ınterests
The authors have no relevant financial or non-financial interests to disclose.
Ethical approval
Not applicable.
Data availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.