Controlling the nanoparticle size of silica in an acidic environment by using a strong magnetic field and a modified sol-gel techniques



  • Ashraf M. Alattar Department of medical physics, College of Science, Al-Karkh university of science. Baghdad. Iraq
  • Mohammed J. Alwazzan Department of Medical Instruments Techniques Engineering, Al hussain University College, Karbala’a, Iraq
  • Khalida A. Thejeel Department of Geophysics, College of Remote Sensing and Geophysics, Al-Karkh university of science, Baghdad. Iraq



In this study, we were able to create highly dispersed silica nanoparticles with diameters of less than one nm by changing the sol-gel technique. During the poly-condensation process, a strong magnetic field was applied to the silica sol to control particle size. The size of silica nanoparticles has a substantial impact on preparation elements such pH, magnetic field intensity, and exposure time. These parameters can be changed in a systematic manner to reduce or increase particle size. A dynamic light scattering test was also used to investigate the effect of a magnetic field on the particle size and dispersion of silica dust. Despite the fact that silica is naturally diamagnetic, the magnetic field has a considerable impact on their size growth. Magnetic fields altered the typical influence on silicon structure, resulting in crystal formation in the silicon sample under consideration. Many applications require small particle sizes and/or a narrow particle size dispersion. The building blocks of nanotechnology are usually made of low-dimension particles. The experts concluded that additional research into such strange phenomena will be required in the future.