Abstract
The paper presents an original method for the template synthesis of biomimetic porous composites using polyferrophenylsiloxane (PFPS) and the skeleton of the sea urchin Strongylocentrotus intermedius as a structuring template. The study aimed to form an organosilicon base of a composite with an inverted structure relative to the original structure of the sea urchin shell with a period of structure movement of about 20 µm and ceramic composites fabrication with the silicate base with an average pore size distribution of about 10 μm obtained by the reaction of PFPS with the inorganic base of the sea urchin test under conditions of calcination at 1000 °C followed by acid etching. The composition and morphology of the obtained composites were investigated by IR, XRD, XPS, EDX, and SEM techniques and by mercury porosimetry; the parameters of the porous structures depend on the selected methods of their synthesis. The proposed method is of fundamental importance for developing methods for the chemical synthesis of new biomimetics with a unique porosity architecture based on environmentally friendly natural raw materials for a vast practical application.
Highlights
Accepted: 13 September 2021Synthetic materials that mimic biological systems’ structural and functional properties represent a class of biomimetic materials included in modern materials science
Considering the possibilities of chemical and biochemical application of the sea urchin skeletons to create new functional materials, we investigated the chemical interaction of organosiloxans with the sea urchin skeleton as a pore-forming template for obtaining new materials with a developed porous structure
Thepaper paperinvestigates investigates a method for template synthesis of biomimetic porous biomimetic
Summary
Synthetic materials that mimic biological systems’ structural and functional properties represent a class of biomimetic materials included in modern materials science. A separate important area of biomimetics application is the technology of membrane and filtration purification of liquid [12,13] and gaseous media [14,15] from various pollutants: heavy metals, organic substances, combustion products, or radioactive components. In these processes, biomimetic materials characterized by such fundamental properties as the permeability and permeability of liquid or gas flows through their volume and the ability to include functionally active surface centers. The method proposed in this work can be of fundamental importance for determining the possibility of obtaining ordered porous composite materials for a vast practical application, including technologically demanded highly porous cellular membranes or filters
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