ABSTRACT
ABSTRACT: To improve visible-light photocatalytic activity of nano TiO2, N,W-codoped TiO2 nanorods were prepared by hydrothermal method. The prepared samples were characterized by SEM, XRD, and TEM. The results showed that the N,W-codoped TiO2 nanorods exhibited a higher photocatalytic activity under visible-light irradiation compared with undoped TiO2, because the codoping of N and W ions extended the visible-light absorption.
