TiO2 nanotube arrays grown in ionic liquids: high-efficiency in photocatalysis and pore-widening

Abstract

Debris-free, long, well-separated TiO2 nanotube arrays were obtained using an ionic liquid (IL) as electrolyte. The high conductivity of IL resulted in fast pore widening and few contaminants from electrolyte decomposition leading to high photocatalytic efficiency in water splitting.