Efficient Photodegradation of Rhodamine B by Fiber-like Nitrogen-Doped TiO[sub.2]/Ni[sub.2] Nanocomposite under Visible Light Irradiation

N-TiO[sub.2]/Ni(OH)[sub.2] nanofiber was successfully prepared by combining the electrospinning and solvothermal method. It has been found that under visible light irradiation, the as-obtained nanofiber exhibits excellent activity for the photodegradation of rhodamine B, and the average degradation rate reaches 3.1%/min[sup.−1]. Further insight investigations reveal that such a high activity was mainly due to the heterostructure-induced increase in the charge transfer rate and separation efficiency.