Fabrication of biomimetic polyurethane sponges with superhydrophobic, magnetic response and flame retardant properties for efficient oil-water separation

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116230 - 116230

Опубликована: Март 1, 2025

Язык: Английский

---

Modification of Melamine and Polyurethane Sponges with Vinyl Triethoxysilane‐Graphene Nanocomposite as Superhydrophobic Absorbents for Oil‐Water Separation

ChemistrySelect, Год журнала: 2025, Номер 10(2)

Опубликована: Янв. 1, 2025

Abstract Oil‐water separation is essential for various industrial and environmental applications. This study explores the potential of commercially available melamine polyurethane sponges modified with a vinyl triethoxysilane‐graphene nanocomposite as highly efficient oil‐absorbent materials. The textural properties commercial were studied using characterization techniques. After modification, hydrophilicity raw foam becomes hydrophobic superhydrophobic contact angles 146.93° 153.63°, respectively. maximum oil/organic solvent absorption capacity was 100 times more than its weight, that 95 g/g. synthesized foams' physical stability evaluated by subjecting it to ultrasonic waves 5 h. They also showed good chemical recycling ability after 15 times, repeating absorption–squeezing process.

Язык: Английский

---

Sustainable hydrophobic bio-based adsorbent from modified sphagnum moss for efficient oil-water separation

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 6, 2025

Oil spills pose a major environmental challenge, highlighting the urgent need for effective materials capable of achieving efficient oil-water separation to mitigate their detrimental impacts. While various bio-based and synthetic adsorbents have been explored this purpose, existing often suffer from low adsorption capacity, poor reusability, limited hydrophobicity, or concerns. In particular, natural frequently exhibit inherent hydrophilicity, limiting effectiveness in selective oil adsorption. To address gap, we developed novel adsorbent derived sphagnum moss, modified via sequential pretreatment with hydrogen peroxide sodium hydroxide, followed by chemical functionalization silane. This modification enhanced hydrophobicity structural stability, overcoming limitations unmodified adsorbents. Characterization using SEM, XPS, FTIR, TGA confirmed successful grafting hydrophobic functional groups formation uniformly rough surface, leading water contact angle 157°. Comparative analysis demonstrated that moss exhibited significantly capacity 22.756 g/g motor oil, outperforming conventional adsorbents, including currently prevalent biological (1.69-12.8 g/g) biochar (8.1-18.2 g/g). Furthermore, kinetics conformed pseudo-second-order model, indicating chemisorption as dominant mechanism. suggests strong interactions between molecules functionalized contributing efficiency selectivity. These findings highlight novelty, superior performance, compatibility an sustainable solution spill remediation. Its high affinity, reusability make it promising alternative providing eco-friendly approach management restoration.

Язык: Английский

---

Commercial polydimethylsiloxane modified melamine sponge for highly efficient oil-water separation

Journal of Central South University, Год журнала: 2025, Номер unknown

Опубликована: Апрель 15, 2025

Язык: Английский

---

Facile fabrication of green and sustainable gelatin-based aerogels for marine oil spill recovery

Journal of Water Process Engineering, Год журнала: 2024, Номер 68, С. 106383 - 106383

Опубликована: Окт. 22, 2024

Язык: Английский

---

Cellulose acetate-decorated and siloxane-modified hydrophobic melamine foam with excellent selectivity and durability for efficient oil/water separation

Materials Today Sustainability, Год журнала: 2024, Номер unknown, С. 101025 - 101025

Опубликована: Окт. 1, 2024

Язык: Английский

---