Adsorption of Bisphenol A Based on Synergy between Hydrogen Bonding and Hydrophobic Interaction

被引：111
作者：
Zhou, Xiangyu [1 ,2 ,3 ]
Wei, Junfu [1 ,2 ]
Liu, Kai [1 ,2 ]
Liu, Nana [1 ,2 ]
Zhou, Bin [1 ,3 ]
机构：
[1] Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Proc, Tianjin 300387, Peoples R China
[2] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
[3] Tianjin Polytech Univ, Sch Mat Sci & Engn, Tianjin 300387, Peoples R China
来源：
LANGMUIR | 2014年 / 30卷 / 46期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
POLYPROPYLENE NONWOVEN; POLYMERIC ADSORBENTS; PHENOLIC-COMPOUNDS; AQUEOUS-SOLUTIONS; PHTHALATE-ESTERS; CARBON; DESORPTION; MECHANISMS; SEPARATION;
D O I：
10.1021/la502816m
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The study mainly investigated the synergetic adsorption of hydrogen bonding and hydrophobic interaction. To simplify the adsorption driving forces and binding sites, the hydrophilic and hydrophobic microdomain was introduced onto polypropylene (PP) nonwoven. The amphiphilic structure was constructed for the adsorption of bisphenol A (BPA). A solvent shielding experiment was conducted to calculate the contributions of diverse interactions. Also, a specific structure without hydrophilic microdomain was constructed as comparison to determine the adsorption rate and quantify the diffusion behaviors. On the basis of double-exponential model, the adsorption process can be distinctly divided into three stages, namely film diffusion stage, intralayer diffusion stage, and dynamic equilibrium stage. The adsorption rate was dramatically improved due to the influence of hydrophilic microdomain and participation of hydrogen bonding adsorption. Discussions on adsorption priority were also proposed. The results of surface energy heterogeneity revealed that the hydrophilic microdomain or the hydrogen bonding site was occupied preferentially.
引用
收藏
页码：13861 / 13868
页数：8
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