Utilization Of S-RGO Embedded Chitosan Gelatin Biopolymeric Composite Membranes For Engineering Applications


Demirci Ülke A. S., Erdağ Maden Y., Aydın Y. A., Kerkez Kuyumcu Ö., Alemdar Yayla N., Koca A.

12th ESBP European Symposium on Biopolymers, Lisbon, Portekiz, 1 - 03 Ekim 2025, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Lisbon
  • Basıldığı Ülke: Portekiz
  • Marmara Üniversitesi Adresli: Evet

Özet

Membrane separation technique has become more and more popular because of its low energy consumption, ease of use, controllability, and scalability Biopolymeric composite membranes are used as biosensors and electrochemical sensors in sectors such as food and pharmaceuticals, as well as in wastewater treatment and energy storage areas. Highly selective membranes with high penetration rates and chemical/mechanical stability are needed for the quick development. For these reasons, the synthesis of a composite polymeric membrane and its development studies constitute the basis of this context. In recent decades, chitosan, a relatively inert biomaterial with the ability to form films, has gained quick recognition for its potential in separation and purification technology. Chitosan membranes have emerged as a potential option for a number of applications due to their hydrophilicity, biocompatibility, simplicity of modification, and exceptional affinity for dyes, metals and proteins S-RGO (sulfurized reduced graphene oxide), was added to the structure in order to increase porosity, surface area as well as electron and proton conductivity. S-RGO was synthesized as previously described in literature. Chitosan and gelatin solutions were blended at different volumetric ratios and different amounts of S-RGO was added in order to introduce sulfonic acid groups as well as obtaining a layered structure. The membranes were oven dried at 40°C for 1 day. The effect of various parameters were investigated i.e the blending ratio of the polymers, amount and type of inorganic fillers, synthesis conditions. The produced membranes were examined for structural integrity, crystallinity, morphology, and thermal stability using SEM, FTIR, XRD, and TGA. In addition to these analyses, some more analyses such as electrochemical impedance spectroscopy (EIS), swelling and water uptake analyses was carried out. This work will ultimately contribute to the growing field of green materials science by highlighting a bio-based approach for advanced manufacturing methods in membrane development.