Study on the influence factors on phenol photocatalytic degradation using TiO_2 film catalyst supported on quartz rod
Online published: 2010-10-01
Titanium dioxide photocatalytic film supported on the surface of quartz rod is made by the method of dip coating-calcination. This catalyst is used to treat phenol solution and different reaction conditions which influence the phen ol removal rate have been investigate. Results show that the phenol rate with ae ration is remarkably better than that without aeration. When the circulation flo w rate is ranged from 1.05 to 8.28 L/h, it is found that the higher the flow rat e, the higher the phenol removal rate. When the circulation flow rate reaches 5. 04 L/h, outer diffusion no longer become the reaction restriction factor. 80% of ethanol is used to eliminate radicals. When the dosage of ethanol solution are 0,1 mL and 10 mL, the phenol removal rate are 94.10%,73.03% and 65.83% respectiv ely. When the dosage of H2O2 ranged is from 0.05 to 5 mL/L, the phenol removal is improved because of higher amount of H2O2. When the H2O2 dosage reaches 0.1 mL, the phenol removal rate gets stable.
Key words: photocatalysis; quartz rod; titanium dioxide film; phenol
Qiu Yanling, Li Tian, Ma Junhua, Zhao Jianfu . Study on the influence factors on phenol photocatalytic degradation using TiO_2 film catalyst supported on quartz rod[J]. Industrial Water Treatment, 2005 , 25(4) : 53 -55,58 . DOI: 10.11894/1005-829x.2005.25(4).53
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