| Texto completo | |
| Autor(es): |
Roledo, Cely
;
Ferreira, Victoria Agnes Salgueiro
;
Rocha, Kleper de Oliveira
;
dos Reis, Adriano Gonsalves
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 28, p. 12-pg., 2025-01-01. |
| Resumo | |
Bisphenol A (BPA), commonly found in plastics and epoxy resins, poses serious risks to human and animal health, particularly affecting reproduction and hormonal balance. This study investigates the removal of BPA from water using modified Moringa oleifera seed husks (H-MOH300) as a sustainable adsorbent. The husks were chemically activated with phosphoric acid and thermally treated at 300 degrees C, yielding a BET surface area of 380 m2 g-1 and a pore volume of 0.282 cm3 g-1. SEM analysis showed a porous and fibrous morphology, while XRD indicated a crystalline nature. FTIR identified hydroxyl, aromatic, and carboxylic functional groups. The process followed the Langmuir isotherm model, achieving a maximum adsorption capacity of 27.5 mg g-1 at 22 degrees C. Thermodynamic analysis indicated a spontaneous, endothermic process driven by electrostatic and it-it interactions. Regeneration tests up to 5 cycles confirmed H-MOH300's reusability, demonstrating its potential as a cost-effective, eco-friendly solution for BPA removal. (AU) | |
| Processo FAPESP: | 24/06591-5 - Filtração direta e em linha para remoção de microplásticos da água de abastecimento |
| Beneficiário: | Adriano Gonçalves dos Reis |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |