Adsorption Treatment of Phenol Wastewater by β-Cyclodextrin Carbon Material
The[3-cyclodextrin carbon materials were prepared by using[3-cyclodextrin as the raw material and phosphoric acid as the activator.The effects of single-factor conditions(activation temperature,activation time,and impregnation ra-tio)on the product properties of the prepared carbon materials were investigated.The optimal process conditions for the preparation of activated carbon by the phosphoric acid activation method were obtained,i.e.,the impregnation ratio of 1∶2,the time of 3 h,and the temperature of 500℃.The carbon material was adsorbed to the phenol solution under the optimal process conditions.The adsorption performance of β-cyclodextrin carbon materials on phenol solution under the optimal process conditions was determined,and the effects of one-factor conditions(initial concentration,adsorption time,and amount of carbon injected)on the adsorption of phenol by the carbon materials were investigated,and three optimal optimi-zation conditions for the adsorption of phenol by β-cyclodextrin carbon materials were obtained,i.e,an initial concentra-tion of 40 mg·L-1 of phenol solution,an adsorption time of 30 min,and an amount of carbon injected of 0.09 g.Phosphoric acid activation method for the process of preparing β-cyclodextrin carbon material and its adsorption performance can be a practical reference for the pretreatment of phenol wastewater to realize the recycling of water resources.
NETL
NSTL
万方数据
