Simple approach to fabricate AgBr nanoparticles/polyvinylpyrrolidone microspheres

A general synthetic method for preparing AgBr nanoparticles/polyvinylpyrrolidone composite microspheres has been developed. The authors have successfully prepared composite microspheres containing AgBr nanoparticles by employing the sol-gel technique and electrospinning technique. The composite micro- and nanospheres have much enhanced properties than the polymer microspheres. The method is simple and effective. The structures and components of composites that the authors obtained are established by field-emission scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The composite microspheres have extensive foreground as catalyst materials, photochromic materials and antibacterial materials.