摘要
利用葫芦[8]脲实现了对水中活性蓝19染料的吸附,探讨了吸附时间,温度,p H等对吸附的影响,研究了吸附过程的吸附等温线、吸附动力学并通过TG探讨了吸附机理。实验发现温度升高不利于吸附,中性或碱性条件更有利于吸附反应的进行;葫芦[8]脲对活性蓝19的吸附符合Langmuir吸附等温方程和准二级吸附速率方程,吸附过程以化学吸附为主。TG分析表明葫芦[8]脲对活性蓝19的吸附源于主-客体包合作用。
The adsorption behavior and mechanism of reactive blue 19（RB19） on cucurbit[8]uril（CB[8]） were investigated. The influence of adsorption time, temperature and p H were disscussed. The adsorption isotherms data obtained at different temperatures were fitted well to the Langmuir isotherm, and according to this model. The kinetics of the adsorption process was determined to follow the pseudo second-order rate equation indicating the chemisorption dominates the adsorption process. TG revealed that the formation of inclusion complex was the main driven force of adsorption.
出处
《广东化工》
CAS
2016年第6期18-20,共3页
Guangdong Chemical Industry
基金
湖北省教育厅重点项目D20131605
关键词
脲]
活性蓝19染料
吸附
cucurbit[8]uril（CB[8]）
reactive blue 19（RB19）
adsorption
