Synthesis of vanadiummodified rutile TiO2 nanoparticle by ...
· Rutile TiO 2 was synthesized by sol–gel method. Vanadiumdoped rutile TiO 2 nanoparticle was obtained by reactive grinding method. The photoalytic activity was evaluated by the degradation of methylene blue () under solar light at room temperature. The results show that after 4 h of milling the particle size of rutile decreased from 130 to 14 nm and the Brunauer–Emmet–Teller .