Design of hybrid clay/ polypyrrole decorated with silver and zinc oxide nanoparticles for anticorrosive and antibacterial applications

Abstract

In this work, a novel and cost-effective bentonite intercalated with polypyrrole Zinc oxide-silver nanocomposite (B-PPy/ZnO) hybrid material was prepared via in situ photopolymerization of pyrrole in the presence of silanized bentonite and zinc oxide nanoparticles and using silver nitrate as an initiator. The as-prepared Bentonite-polypyrrole/ZnO hybrid material was found to be black, exfoliated with a polypyrrole-rich surface decorated with ZnO and silver nanoparticles in a metallic state. We evaluated the propensity of the prepared hybrid material as an eco-friendly, anticorrosive, and antibacterial coating for carbon steel. The corrosion resistance efficiency study of B-PPy/ZnO composite incorporated with the epoxy matrix was carried out in a 3.5 % NaCl solution. B-PPy/ZnO 4 wt% composite coating on carbon steel was observed to exhibit best corrosion protection property, with High charge transfer resistance were value (9.85 MΩ cm − 2) compared to 0.213 MΩ cm-2 in the presence of pure epoxy. Cytotoxicity assay was carried out on an A549 epithelial cell line. Moreover, B-PPy/ZnO showed a reduction in Escherichia coli bacterial growth by ~86 % with a minimum inhibitory concentration of 0.03 mg ml-1. The results obtained herein will open new routes to the preparation of efficient ecofriendly anticorrosion and antibacterial coatings.

Insights into properties, synthesis and emerging applications of polypyrrole-based composites, and future prospective: A review

“…Photopolymerization is alsosuitable for synthesizing Polypyrrole [ [53] , [54] , [55] , [56] , [57] , [58] , [59] , [60] ]. This method is attractive due to its easy processability, comparatively lower temperature, environment-friendly, and better thermal stability [ 61 ].…”

Recent Developments and Research Avenues for Polymers in Electric Vehicles

“…Jlassi et al reported coatings that exhibited anticorrosion and antibacterial properties realized with the formulations of clay/polypyrrole-zinc oxide material. [85] The chemical route designed in this work as presented in Figure 10 was aminosilanization via in-situ photopolymerization of pyrrole in the presence of zinc and silver oxide nanoparticles.…”

Beads‐milling of waste Si sawdust into micro‐flakes and applied in UV‐curable polystyrene composites for anticorrosion coatings

“…In recent years, many literatures have reported composite coating with inorganic materials as fillers exhibiting good anticorrosive properties. These fillers include clay, 18–20 SiO 2, 21–23 graphene, 24–26 MOF, 27–29 mica powders, 30 and so forth. However, if these composite coatings are to be commercialized, cost issue needs to be considered.…”