Abstract：Adsorption of p-chlorophenol by graphite and mechanisms was investigated by batch adsorption experiments. And the adsorption was decreased both below pH 3 and above pH 7. H+-π interaction between p-chlorophenol molecules and protons was the primary reason for the slight decrease in p-chlorophenol adsorption by graphite below pH 3. Dramatic decrease in p-chlorophenol adsorption above pH 7 was probably caused by its increased solubility in water and elevated electrostatic repulsion experienced by adsorbate molecules on graphite surfaces. Ionic strength did not have significant impact on the adsorption. The major driving force for adsorption of p-chlorophenol on graphite was suggested to stem from the π-π interaction between the aromatic rings of graphite and p-chlorophenol molecules.
陈建, 王静, 孙成. 对氯苯酚在石墨上的吸附行为及其机理研究[J]. 中国环境科学, 2009, 29(6): 636-639.
CHEN Jian, WANG Jing, SUN Cheng. Adsorption characteristics and mechanisms of p-chlorophenol by graphite. . CHINA ENVIRONMENTAL SCIENCECE, 2009, 29(6): 636-639.
