[Adsorption characteristics of phenol compounds in water by activated carbon fiber].
The adsorption characteristics of phenol, p-chlorophenol and p-nitrophenol in wastewater by activated carbon fiber (ACF) were studied. The surface properties of ACF were characterized by scanning electron microscopy (SEM). The thermodynamic characteristics and mechanism of phenol, p-chlorophenol and p-nitrophenol adsorption on ACF were investigated by using the bottle-point technique. The results showed that the adsorption speed was fast, and ACF had good adsorption properties when pH < 7. On the same condition, the order of removal efficiency were: phenol (87%) < p-chlorophenol (96%) < p-nitrophenol (99%). All the adsorptions are physical adsorption, and the adsorption process were spontaneous exothermic reaction. All the adsorption isotherms can be well represented by Dubinin-Radushkevich equation and the sorption process were spontaneous exothermic reaction.
Yue
Qin-Yan
QY
School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China. qyyue@sdu.edu.cn
Yang
Jing
J
Gao
Bao-Yu
BY
Li
Ren-Bo
RB
Li
Ying
Y
Yu
Hui
H
D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D002733:Chlorophenols / Q000737:chemistry*; D009596:Nitrophenols / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D002733:Chlorophenols; D009596:Nitrophenols; D014874:Water Pollutants, Chemical; D002606:Charcoal; D019800:Phenol; C029107:4-chlorophenol; C024836:4-nitrophenol