TY - JOUR
T1 - Removal of perfluoroalkyl sulfonates (PFAS) from aqueous solution using permanently confined micelle arrays (PCMAs)
AU - Wang, Fei
AU - Lu, Xingwen
AU - Shih, Kaimin
AU - Wang, Peng
AU - Li, Xiaoyan
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We gratefully acknowledge the funding for this research provided by the Hong Kong General Research Fund (HKU 716809E) and Hong Kong Special Equipment Grant (SEG_HKU10).
PY - 2014/12
Y1 - 2014/12
N2 - One new sorbent with permanently confined micelle arrays (PCMAs) has been synthesized to remove PFAS compounds from aquatic solutions. The TEM and SEM studies showed that large particle sizes with lots of macro-pores and highly order hexagonal structure of cylindrical micelle had been formed in the sorbent. The FTIR spectrums demonstrated the formation of Si-O-Si covalent bond in the new material. The kinetic study showed that the sorption of PFOS, PFHxS, and PFBuS by PCMAs reached equilibrium within 5 min. The pH and salts in solution are found to have limited effects on sorption of PFOS on the new sorbent, and regeneration experiments revealed that PFAS removal efficiencies by the PCMAs did not decrease after 5 cycle regenerations. The high capabilities of PCMAs make it a potentially attractive sorbent for the removal of PFCs from aqueous solution.
AB - One new sorbent with permanently confined micelle arrays (PCMAs) has been synthesized to remove PFAS compounds from aquatic solutions. The TEM and SEM studies showed that large particle sizes with lots of macro-pores and highly order hexagonal structure of cylindrical micelle had been formed in the sorbent. The FTIR spectrums demonstrated the formation of Si-O-Si covalent bond in the new material. The kinetic study showed that the sorption of PFOS, PFHxS, and PFBuS by PCMAs reached equilibrium within 5 min. The pH and salts in solution are found to have limited effects on sorption of PFOS on the new sorbent, and regeneration experiments revealed that PFAS removal efficiencies by the PCMAs did not decrease after 5 cycle regenerations. The high capabilities of PCMAs make it a potentially attractive sorbent for the removal of PFCs from aqueous solution.
UR - http://hdl.handle.net/10754/563893
UR - https://linkinghub.elsevier.com/retrieve/pii/S1383586614006091
UR - http://www.scopus.com/inward/record.url?scp=84908553982&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2014.09.037
DO - 10.1016/j.seppur.2014.09.037
M3 - Article
SN - 1383-5866
VL - 138
SP - 7
EP - 12
JO - Separation and Purification Technology
JF - Separation and Purification Technology
ER -