Author/Authors :
Li، نويسنده , , Yanhui and Du، نويسنده , , Qiuju and Liu، نويسنده , , Tonghao and Sun، نويسنده , , Jiankun and Jiao، نويسنده , , Yuqin and Xia، نويسنده , , Yanzhi and Xia، نويسنده , , Linhua and Wang، نويسنده , , Zonghua and Zhang، نويسنده , , Wei and Wang، نويسنده , , Kunlin and Zhu، نويسنده , , Hongwei and Wu، نويسنده , , Dehai، نويسنده ,
Abstract :
Graphene, a new member of carbon family, has been prepared, characterized and used as adsorbent to remove phenol from aqueous solution. The effect parameters including pH, dosage, contact time, and temperature on the adsorption properties of phenol onto graphene were investigated. The results showed that the maximum adsorption capacity can reach 28.26 mg/g at the conditions of initial phenol concentration of 50 mg/L, pH 6.3 and 285 K. Adsorption data were well described by both Freundlich and Langmuir models. The kinetic study illustrated that the adsorption of phenol onto graphene fit the pseudo second-order model. The thermodynamic parameters indicated that the adsorption of phenol onto graphene was endothermic and spontaneous.
