Effects of KBr and KI on Photocatalytic Degradation of Dye W-7G with Nano-TiO₂ as Catalyst

Figure 1

Schematic diagram of annular BFBPR. ((1) Sample solution inlet; (2) Catalyst particles; (3) Sample reservoir; (4) Sample solution outlet; (5) Solution circulation pump; (6) Pipe-type gas distributor; (7) Nylon mesh; (8) Reaction pool; (9) Synthetic glass tube; (10) Pyrex glass tube; (11) UV-light; (12) Gas pump; (13) Sampling pore and pH Detector; (14) Electrical source).