| dc.description.abstract | Water pollution caused by synthetic dyes such as Methylene Blue, which is widely used in the textile industry, has become a serious environmental problem due to its toxic nature, persistence, and potential to disrupt aquatic ecosystems. Therefore, the development of efficient, eco-friendly, and sustainable adsorbent materials is essential. This study aims to develop and characterize a polycaprolactone (PCL)-based biocomposite with the addition of palm boiler ash (ABKS), titanium dioxide (TiO₂), and chitosan as Fillers for use as an adsorbent material in the degradation of Methylene Blue. Silica (SiO₂) was synthesized from ABKS through a furnace process at 500°C for 5 hours, followed by coprecipitation to obtain a silica-rich content. The biocomposite was prepared by dissolving the PCL matrix in chloroform, then homogeneously incorporating ABKS, TiO₂, and chitosan as Fillers. Characterization was carried out using SEM-EDX, XRD, FTIR, and UV-Vis spectroscopy to determine the morphology, crystal structure, functional groups, and photocatalytic capability of the biocomposite. The FTIR spectra exhibited characteristic absorption peaks corresponding to Ti-O (669.29 cm⁻¹), Si-O (968.26 cm⁻¹), and C=O (1751.36 cm⁻¹) bonds, indicating chemical interactions between the components. The photodegradation test showed a visible color change of the Methylene Blue solution from blue to colorless, with the highest degradation efficiency of 95.26% achieved by the sample containing ABKS and TiO₂ Fillers after 60 hours of UV irradiation. Overall, this biocomposite has potential as a sustainable adsorbent material for treating Methylene Blue dye wastewater. | en_US |
