High adsorption capacity of V-doped TiO2 for decolorization of methylene blue

► TiO2 is applied widely in environment because of its advantage. ► However, adsorption capacity of TiO2 is low for most adsorbates. ► Improving performance of TiO2, V-doped TiO2 was fabricated by new sol-gel method. ► Adsorption capacity of V-doped TiO2 was increased significantly to 11.36 times.