Bio-template Synthesis of Spirulina/α-Fe₂O₃ Composite with Improved Surface Wettability

Abstract

Bio-template method has recently attracted much attention because of its prominent advantages in obtaining morphology controlled materials with structural specificity, complexity and their unique functions. The bio-template method combining with electrochemical deposition was employed to synthesize spirulina/hematite composite microstructures using native spirulina as template. A great amount of hematite(α-Fe₂O₃) nanoparticles can be formed and deposited onto the spirulina, resulting in a robust and pseudo-homogeneous surface. And the spirulina/α-Fe₂O₃ composite exhibits an improved surface wettability due to its helical morphology. This facile strategy may open new horizons in the field of replicating specific biological structures for functional materials in other potential applications.

Keywords

α-Fe₂O₃ nanoparticle / Spirulina platensis / Bio-template synthesis / Electrochemical deposition / Hydro-phobic wettability

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