Синтез наноразмерного диоксида титана с высокой сорбционной способностью по отношению к ионам галлия

Abstract

Titanium dioxide (TiO2) with high adsorptive ability to gallium ions was synthesized by sol-gel method at different values of pH = 1, 2, 4, 6, 8, and 10. The synthesized powders were different in the average size of the nanoparticles (from 10 to 50 nm), the specific surface area (from 100 to 136 m2/g) and the energy band gap (from 3.1 to 3.4 eV). The adsorption degree of Ga ions from aqueous solutions was determined to vary from 40 to even 90%.