With the economic development and social progress of China, water pollution problem is a major social concern environmental issue and has become increasingly prominent. Photocatalytic degradation with nano-TiO2 is a potential effective technology to degrade wastewater, and has received much attention in recent years because of its advantages such as low cost, mild reaction condition and high degradation effect. In previous, people have mostly researched degradation of wastewater by undoped TiO2. In ...