Adsorption of phenolic compounds from aqueous solution onto a macroporous polymer and its aminated derivative: isotherm analysis.
Adsorption of phenolic compounds from aqueous solution to a macroporous polymeric adsorbent (CHA-111), its animated derivative (MCH-111) and a reference weakly anion exchanger (ND-900) was studied. Experimental results indicated that amino functional groups on the polymeric matrix play an important role in phenol adsorption by MCH-111 and ND-900, which was attributed to the formation of hydrogen bonding between the phenol molecule and the amino group on the polymeric matrix. The semi-empirical Freundlich isotherm equation and its reduced form were employed to interpret the adsorption behavior. A site energy distribution model based on the Polanyi adsorption potential theory can elucidate the adsorption mechanism reasonably.
Pan
B C
BC
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China. bcpan@nju.edu.cn
Zhang
X
X
Zhang
W M
WM
Zheng
J Z
JZ
Pan
B J
BJ
Chen
J L
JL
Zhang
Q X
QX
D000327:Adsorption; D000588:Amines; D008956:Models, Chemical; D010636:Phenols / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D014877:Water Pollution, Chemical / Q000517:prevention & control*
D000588:Amines; D010636:Phenols; D011108:Polymers; D012996:Solutions; D014874:Water Pollutants, Chemical