Work

Bio-Derived Dual-Temperature Antifouling Coating Enabled by Oyster-Shell Valorization

Year: 2026

Type: article

Abstract: Marine biofouling imposes serious challenges to sustainability by increasing fuel consumption, maintenance costs, and ecological risks across maritime operations. Conventional antifouling coatings typically rely on toxic biocides, which persist in marine environments and harm non-target organisms. This study presents a biocide-free, eco-friendly coating derived from thermally activated oyster shells, modified via silane and stearic acid treatment. Incorporated into a siloxane matrix with ZnO and TiO₂, the coating demonstrates long-term hydrophobicity and antifouling efficacy through field tests in seawater over 12 months.

Source: Coatings

DOI: 10.3390/coatings16111304

Authors: Hung-Pin Shen, Hung-Pin Shen

Institution: National Taiwan University

Language: English

Topic: Marine Biology and Environmental Chemistry

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Life below water, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $3,137