Influence of Dispersants on Dispersion Stability of TiO2 Suspensions

Yu Mou; Kun Miao Lü; Dong Mei Gao

doi:10.4028/www.scientific.net/AMR.356-360.476

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Influence of Dispersants on Dispersion Stability of TiO₂ Suspensions

Abstract:

TiO₂ nanoparticles are prone to aggregate in aqueous solution, which limits its extensive application. Several researches have been carried on the stability of TiO₂ suspensions. In this study, four common dispersants including ethanol, tetrahydrofuran (THF), polyvinylpyrrolidone (PVP), and sodium hexametaphosphate (SHMP) have been chosen to detect their effects on stability of TiO₂ aqueous suspensions. The experimental results showed that THF and SHMP were efficient dispersants for TiO₂ nanoparticles in aqueous solution.