Surface morphology properties and antifouling activity of Bi2WO6/boron-grafted polyurethane composite coatings realized via multiple synergy

Hongmin Wang; Linlin Zhang; Rongrong Chen; Qi Liu; Jingyuan Liu; Jing Yu; Peili Liu; Jizhou Duan; Jun Wang

doi:10.1016/j.jcis.2022.06.180

Surface morphology properties and antifouling activity of Bi₂WO₆/boron-grafted polyurethane composite coatings realized via multiple synergy

J Colloid Interface Sci. 2022 Nov 15:626:815-823. doi: 10.1016/j.jcis.2022.06.180. Epub 2022 Jul 4.

Authors

Hongmin Wang¹, Linlin Zhang¹, Rongrong Chen², Qi Liu³, Jingyuan Liu¹, Jing Yu¹, Peili Liu¹, Jizhou Duan⁴, Jun Wang⁵

Affiliations

¹ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
² Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China; Shandong Key Laboratory of Corrosion Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China. Electronic address: chenrongrong@hrbeu.edu.cn.
³ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China.
⁴ Shandong Key Laboratory of Corrosion Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
⁵ Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. Electronic address: junwang@hrbeu.edu.cn.

PMID: 35820216
DOI: 10.1016/j.jcis.2022.06.180

Abstract

An inorganic-organic composite coating is an effective way to solve the issue of marine organism attachment and realize multi-element synergistic antifouling. Herein, Bi₂WO₆/boron-grafted polyurethane composite coatings (BWOB) composed of Bi₂WO₆ with three morphologies (nanosheet, flower and microsphere) and boron-grafted polyurethane (ITB) were successfully synthesized to achieve high-efficiency antifouling. Bi₂WO₆ nanoparticles were evenly distributed on the surface and inside the ITB to form micro/nanostructures. In the composite coatings doped with flower-shaped Bi₂WO₆, BWOB-5 showed excellent antibacterial and antidiatom adhesion properties, achieving 95.43% and 98.38% against Escherichia coli and Staphylococcus aureus, respectively, and 98.62% against Nitzschia closterium. In addition, the micro/nanostructure on the surface, the stable production of hydroxyl radicals (·OH) and superoxide radicals (·O₂^-) during photocatalysis, and the antifouling functional groups of the resin matrix in the BWOB composite coatings were all conducive to photocatalytic antifouling activity. More importantly, BWOB coatings exhibited excellent environmentally friendly properties. Therefore, BWOB coatings are expected to have potential application value in the field of photocatalytic sterilization and antifouling.

Keywords: Bi(2)WO(6); Boron grafted polyurethane; Marine antifouling; Photocatalytic.

MeSH terms

Biofouling* / prevention & control
Boron
Escherichia coli
Polyurethanes* / pharmacology
Staphylococcus aureus
Surface Properties

Substances

Polyurethanes
Boron