Photodegradation of alachlor with the TiO2 film immobilised on the glass tube in aqueous solution

摘要: Abstract Alachlor photodegradation was performed using TiO 2 , which synthesized by a modified sol–gel method. The thickness of film immobilised 5-time dip-coating 174 nm and the average diameter particles about 10–15 in SEM images. crystal structure calcinated at 300 °C for 1 h observed as typical anatase type. stability method 4% better than removal rate alachlor with both Fe 3+ UV radiation absence 0.28 mg/l/h 10 /UV presence 0.32 g/l/h, higher 14% that system. TOC concentration during degradation added decreased from 100%, through 81% 51%, to 44% time elapses 4, 8, h, respectively, while 100% 70% h.