Beschreibung:
Developing efficient semiconductor photocatalysis and understanding their underlying catalytic mechanism are of important significance for the high-performance organic waste disposal technologies. Here, the deep insights into photocatalysis are achieved via the catalytic oxidation of origin dyes over the WO 3 /TiO 2 heterojunction fabricated with solvothermal-sintering process. Tightly bonded bimetal centers and well-designed heterojunction lead to significantly reduced band gap of the semiconductor photocatalysis. Furthermore, significantly enhanced photocatalytic activity are achieved for degrading various organic dyes under visible light. In particular, the degradation rate of RhB with the heterojunction reaches 95.31% under visible light for 80 minutes, which is considerably higher than that of 34.81% with TiO 2 . Besides, WO 3 /TiO 2 heterojunction still maintains excellent photocatalytic activity after three cycles of degradation. This work proposes a simple, low-cost but effective route to fabricate WO 3 /TiO 2 heterojunction, which can be used for large-scale organic wastewater disposals across industrial circles