Abstract
Na‐Montmorillonite (Na‐MMT) was modified by cetyltrimethylammonium bromide first, then polyethersulfone (PES)‐MMT hybrid beads were prepared using a liquid‐liquid phase separation technique for the removal of bisphenol (BPA). The interlayer spacing of the MMT increased after the modification. Adsorption data showed that the modified MMT had excellent adsorption ability to BPA due to the hydrophobic interaction and large porosity. An adsorption dynamics model for the beads was constructed using concentration decrease data. Also, the experimental data of BPA adsorption were adequately fitted with both Langmuir and Freundlich equations. These results indicated that the PES‐MMT hybrid particles have the potential to be used in the environmental application.
ACKNOWLEDGMENT
This work was financially sponsored by the National Natural Science Foundation of China (No. 50403028, 50673064), State Education Ministry of China (Project‐sponsored by SRF for ROCS, No. 2004527‐16‐14, and Program for New Century Excellent Talents in University, NCET‐05‐0791) and Innovation Fund of Sichuan University (G2006004).