Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 8, Issue 5, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2020.104246
Keywords
Alginate; Biofouling; Zinc; Stainless steel; Bacteria; Microalgae
Categories
Funding
- European Union through the European Regional Development Fund (ERDF)
- Ministry of Higher Education and Research
- Region Bretagne
- Conseil departemental du Finistere
- Brest Metropole Oceane, through the CPER Project 2015-2020 MATECOM
- Agence Universitaire de la Francophonie
- Biogenouest
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The protection of steel against marine biofouling is usually achieved by the application of protective coatings. In this work, an antifouling coating based on alginate biopolymer was developed using the electrophoretic deposition method. Zinc cations have been incorporated into the material to obtain some anti-algae / bacteria properties and calcium cations have been included to contribute to its jellification. The coatings produces were characterized by XRD, SEM, EDX and XPS techniques: the microscopic coatings fully and uniformly covered the steel samples. Results of the biological assays have demonstrated the impact of the coating on marine bacteria and microalgae; the values are comparable to those obtained in bioassays using copper-based alginate coatings. The antifouling effect of the coatings was equivalent to the potency of a high-volume hydrogel effect. These low-cost biocompatible coatings can be attractive in a wide variety of marine applications.
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