(1. 中南大学 冶金科学与工程学院，长沙 410017；
2. 中南大学 国家重金属污染防治工程技术研究中心，长沙 410017；
3. 湖南省环境保护科学研究院，长沙 410004；4. 长沙市审计局，长沙 410013；
5. 中机国际工程设计研究院有限责任公司，长沙 410007)
摘 要:
关键字: 苯酚；活性炭；吸附模型
（1. School of Metallurgical Science and Engineering, Central South University, Changsha 410017, China;
2. National Engineering Research Center for Pollution Control of Heavy Metals, Central South University,
Changsha 410017, China;
3. Hunan Research Academy of Environmental Sciences, Changsha 410004, China;
4. Changsha Municipal Audit Bureau, Changsha 410013, China;
5. China Machinery International Engineering Design & Research Institute Co., Ltd., Changsha 410007, China）
Abstract:The dynamics and thermodynamics of activated carbon adsorbing phenol were investigated by static adsorption experiments. The adsorption process obeys the second-level dynamic equation, where the pretreatment activated carbon is used to adsorb phenol. The maximum adsorption capacity is 0.276 1 g/g. The experimental results deduced from the adsorption thermodynamics computation and the infrared spectrogram shows that the adsorption heat is −33.046 kJ/mol, the adsorption bond strength is small, and a phenol molecule adsorbs on two active points of activated carbon surface via hydrogen bond. With the increase of phenol dosage, the infrared spectrum broadens gradually on 3 432 cm−1 hydroxyl spectral line, the dissemination spectrum occurs, which indicates that phenol associates through hydrogen bond on hydroxyl. Adsorption model being built based to the obtained data could be used to explain the related experiment phenomena.
Key words: phenol; activated carbon; adsorption model
