陕西科技大学学报（自然科学版）Issue(2)：27-33,7.
双酚A在不同碳材料上的吸附热力学与动力学研究
Study on adsorption thermodynamics and kinetic of bisphenol A on different carbon materials
摘要
Abstract
In the study ,the bisphenol A (BPA) adsorption behavior onto multi‐walled carbon nanotubes (MWCNT) ,activated carbon (AC) and graphite (G) was conducted .The thermo‐dynamics and dynamics for BPA adsorption onto adsorbent were also studied ,and adsorption mechanism was discussed .Adsorption experiments results showed that the adsorption ca‐pacity of BPA onto AC was highest 527 .03 mg/g ,and the amount of BPA adsorption onto G was only 14 .32 mg/g .The adsorption amount of BPA was reduced with an increase of tem‐perature ,indicating of an exothermic reaction .Adsorption isotherm of BPA onto adsorbent could be well fitted by langmuir model ,and BPA adsorption was an advantageous adsorption . The pseudo‐second‐order kinetics could fit BPA adsorption onto MWCNT and AC very well ,w hile BPA adsorption onto G could be described with pseudo‐first‐order kinetic model and the adsorption process was affected by boundary diffusion .No obvious change of BPA ad‐sorption onto adsorbent was observed at pH below 8 ,while BPA adsorption onto adsorbent was decreased with the increased pH at pH above 8 .关键词
双酚A/碳材料/吸附/热力学/动力学Key words
bisphenol A/carbon materials/adsorption/thermodynamics/kinetics分类
环境科学引用本文复制引用
王家宏,尹小龙..双酚A在不同碳材料上的吸附热力学与动力学研究[J].陕西科技大学学报（自然科学版）,2015,(2):27-33,7.基金项目
国家自然科学基金项目（21107065）；陕西省科技厅自然科学基金青年项目（2012JQ2003）；陕西省科技厅社会发展科技攻关项目 （）
