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This study includes preparation of nanoparticles of titanium dioxide using the sol-gel method and then, the band gap was modified by solid-state reaction with (Antimony) Stibium Sb reductive compounds. Modification reduced the band gap separating energy levels between valance band (VB) and conduction band (CB), therefore; facilitating the transfer of excited electrons from (VB) to (CB). Absorption of the energy from incident photons having the same or larger energy than the energy of the band gap promote the formation of the couple (electron-hole). The resulting (e--h+) couple acts to produce (OH.) radicals. OH. radicals having a high capability to inhibition of glutathione S-transferase activity in Aedes aegypti, mosquitoes that adsorbed on the surface of the photocatalytic TiO2 as a new model of eco-friendly insecticide.

MODIFICATION OF THE NANO TITANIUM BAND GAP REACTIONS OF SOLID DIOXIDE WITH (ANTIMONY) STIBIUM S AND ITS DETERMINATION PHOTOCATALYTIC ACTIVITY