• Daulbayev, Olzhas
• Sultanov, Fail
• Mansurov, Zulkhair
• Daulbayev, Chingis
• Bigaj-Józefowska, Magdalena
• Kuterbekov, Kairat
• Bekmyrza, Kenzhebatyr
• Bakbolat, Baglan

Abstract

Electrospinning is an effective method for producing 1D photocatalysts from nanostructured polymer fibers and metals, metal oxides, hydrocarbons, and various composites. Fibers with the diameter ranging from nanometer to micrometer have unique properties, such as large surface area and large pore volume. These properties make 1D photocatalysts effective. This article deals with obtaining composite fibers based on strontium titanate (SrTiO3) and polyacrylonitrile (PAN) as a precursor by the electrospinning method. For maintaining the alignment and overall orientation of fibers during electrospinning, «H-type» collector made from inexpensive aluminium foil was used. A special shape of collector leads to the change of electric field in the space between the needle and collector, thus allowing obtaining aligned fibers. As a result, aligned composite SrTiO3/PAN fibers with overall orientation were obtained. The diameter of the obtained fibers ranges from 2 to 4 µm and particles of SrTiO3 are uniformly distributed alongside their structure. The resulting fibers were used as 1D photocatalyst for evolution of hydrogen by splitting the water-methanol mixture

Topics

• impedance spectroscopy
• pore
• surface
• polymer
• aluminium
• Strontium
• composite
• Hydrogen
• electrospinning
• aligned