Study On Photocatalytic Degradation Of Phenon Solution With T_iO₂ Photocatalyst Coated On Activited Carbon

Phenol wastewater is one of key controlling objects,which does great harm to environment and becomes a serious problem in environmental treatment, Photocatalytic oxidation of water contaminants is a new method for wastewater treatment.It is widely and deeply studied by researcher for its high photo-degradation efficiency,simple technical equipment,operating controlling easily,none secondary pollution caused.The T_iO₂ and the T_iO₂ photocatalyst coated on activated carbon was prepared with Tetrabutyl titanate which are mostly material in the Sol-gel process,the using experiment of phenon photocatalyst degradation,factors,such as initial solution, quantity of H₂O₂ being affiliated,reation time,illumination intension,times of T_iO₂ photocatalyst coated on activated carbon,quantity of cativator being affiliated, reaction method,ect.impacting on phenol photodegradation ratio were studied.Results indicate that:(1) using of T_iO₂:phenol photodegradation ratio decreases with increasing of initial concentration of phenol;pH value effects obviously on phenol photodegradation ratio;under the whole feeble acidity condition,phenol photodegradation ratio is higher in feeble alkalescence condition;phenol photo degradation ratio decreases with the increase of quantity of T_iO₂ being affiliated;none of T_iO₂,phenol photodegradation ratio is 11.8%;none of H₂O₂,phenol photodegradation ratio is 30.2%;when the best quantity of H₂O₂ being affiliated is 3.5 mL,phenol photodegradation ratio is 44.8%.(2) using of T_iO₂/AC:with increasing of initial concentration of phenol,phenol photodegradation ratio increases firstly,and then it decreases;under acidity condition and alkalescence condition,pH value of the solution is propitious to phenol photodegradation;phenol photodegradation ratio can go a little lower with the increase of using times of activator;the best quantity of H₂O₂ being affiliated is 0.3 mol/L;phenol photodegradation ratio is 28.9%in quiescency reaction,48.7%in magnetic force whisk,and 43.6%in aeration plump,disposing effect of using magnetic force whisk is higher than using quiescency reaction and aeration plump.(3) using T_iO₂/AC photodegradation phenol wastewater is also stuidied in the experiment and the conclusion shows that phenol photodegradation ratio of pharmacy factory,coal factory and coking factory are 68.9%,49.7%and 62.3%.