About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
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| Symposium
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Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
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| Presentation Title |
Coir-Hydrated Silica Nanoparticles for Hydrocarbon-Contaminated Soil Remediation and Maize Growth Enhancement
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| Author(s) |
Joshua Osaretin Onaifo, Esther Uwidia Ikhuoria, Godfrey Osatohanmwen Otabor |
| On-Site Speaker (Planned) |
Joshua Osaretin Onaifo |
| Abstract Scope |
Hydrocarbons contamination poses serious environmental and agricultural challenges globally, necessitating sustainable remediation strategies. This study investigated the synthesis, characterization, adsorption behaviour and agronomic-remediation potential of coir-hydrated silica nanoparticles (CHSNPs) for hydrocarbons-contaminated soil. CHSNPs synthesized from coir and hydrated silica were characterized using FTIR, XRD, GC-MS. The results confirmed functionalized semi-crystalline nanostructures with high sorption potential. Adsorption studies revealed that the remediation followed the Langmuir isotherm and pseudo-second-order kinetic model, suggesting monolayer chemisorption as the dominant mechanism, also the adsorption efficiency was controlled by chemical interactions and the availability of active sites, resulting in improved sorption stability and hydrocarbon retention. Greenhouse experiments with Zea mays showed severe inhibition of germination and growth in untreated-contaminated soil. Application of 50, 100 and 150 g CHSNPs/1000 g of contaminated soil improved plant performance with 100 g showing better suitability for maize growth. Therefore, CHSNPs are proven to be promising materials for hydrocarbons-contaminated soil remediation. |