Adsorption of phenol with the grafted polymer of p(mma-mah)- pegme in aqueous solution
1 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
2 School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China
3 Institute of Blood Transfusion, Chinese Academy of Medical Sciences, Chengdu, 610052, China
4 School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China
5 Chengdu Huaqi Houpu Machine Electricity Technology Co., Ltd., Chengdu, 610100, China
2 School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China
3 Institute of Blood Transfusion, Chinese Academy of Medical Sciences, Chengdu, 610052, China
4 School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China
5 Chengdu Huaqi Houpu Machine Electricity Technology Co., Ltd., Chengdu, 610100, China
Abstract
The grafted polymer of P(MMA-MAh)- PEGME synthesized was used as adsorbent to remove phenol in aqueous solution. Through the adsorption research of phenol, it was found the removal percentage (%) of phenol was promising when pH was less than 6. With the adsorbent dose increasing, the removal percentage increased, meanwhile the adsorption amount qe (mg g-1) correspondingly decreased. It was taken 35h for the phenol adsorption with the grafted polymer to reach the equilibrium. The study results indicated that the adsorption process was carried out spontaneously; the process was exothermic in nature; the adsorption kinetic of phenol belonged to the Lagergren relation; the adsorption mechanism was well represented with Freundlich isotherm model.
Keywords
adsorption kinetic; adsorption isotherm; grafted polymer; phenol