Publication: Development of multi-functional Porous materials for oil spill Remediation.
| dc.contributor.author | Ab Shattar, Siti Fairos | |
| dc.date.accessioned | 2026-11-13T03:40:31Z | |
| dc.date.available | 2026-11-13T03:40:31Z | |
| dc.date.issued | 2025-12 | |
| dc.description.abstract | In this work, a series of multi-functionalized porous materials, specifically Ceiba pentandra (L.) derived biochar, chitosan and sepiolite have been successfully prepared from lignocellulosic biomass and natural resources via hydrothermal, microwave, and ultrasonic synthesis techniques. The physical, chemical and physiochemical properties of these multi-functionalized porous materials, in term of surface porosity, morphology, contact angle and functionalities were examined using nitrogen adsorption-desorption isotherm, scanning electron microscopy, goniometerand Fourier-Transform Infrared (FTIR) spectroscopy. The performance evaluation was conducted using batch adsorption experiments with respect to the mineral oil (diesel), natural oil (palm oil), and crude oil (petroleum crude). The governing parameters including the effects of contact time, initial concentration, pH and salinity were evaluated. The isotherm modelling, adsorption kinetics, and mechanism of the treatment process were established. Results revealed that these newly prepared adsorbents have been enriched with multi surface porosity, discrepancy morphology and unique functionalities, in supporting the environmental application for oil spill remediation. Examination of the textural structure verified pore development, with a series of cavities distributed around the surface, with the Brunauer-Emmett-Teller (BET) surface areas ranging from 161.72 to 970.42 m2/g. Morphological study supported the presumption that the intercalation of sodium dodecyl sulphate (SDS) and N-Cetyl-N,N,N-Trimethylammonium bromide (CTAB) modification process was successfully attained. Alteration of Fourier-transform infrared spectroscopy (FTIR) bands signified the modification and development of the new functionalities on the functionalized porous adsorbent. Equilibrium analysis has documented their excellent capability for the adsorptive uptakes of diesel, palm oil, and petroleum crude, well fitted to the Langmuir isotherm model (R2=0.998–0.999), with the monolayer adsorption capacity (Qo) at 563.44 mg/g, 678.27 mg/g, and 842.25 mg/g for CCP, SDSC, and CTABS, respectively, while adsorption kinetic was best described by the pseudo-second order model. The adsorptive uptake of oil was found to be highly pH dependent, favouring the adsorption uptake of oil at the acidic condition, where the presence of hydrogen ions could protonated the adsorbent surface, and the changing degree of ionization could promote intensive electrostatic interaction between the adsorbent surface and oil contaminants in its anionic form. In parallel, high salinity is detrimental to organics uptakes, but low salinity can be beneficial for the adsorption process, in which an extreme salinity would lead to salting effect. The results elucidated the adsorptive interaction were governed by electrostatic interactions, π–π stacking, and hydrogen bonding. The well-crafted structural properties and high adsorptive potentials, supported by the environmentally sustainable preparation approaches, have positioned them as viable solutions for the effective remediation of oil contamination. The core insight from the research will serve as a transformative concept, advancing the innovative idea of 'Turning Waste into Wealth' to mitigate oil spill issues sustainably in an eco-friendly manner. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/25455 | |
| dc.language.iso | en | |
| dc.title | Development of multi-functional Porous materials for oil spill Remediation. | |
| dc.type | Resource Types::text::thesis::doctoral thesis | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |