TY - JOUR
T1 - Hollow mesoporous silica spheres/polyethersulfone composite ultrafiltration membrane with enhanced antifouling property
AU - Li, Qian
AU - Pan, Shunlong
AU - Li, Xin
AU - Liu, Chao
AU - Li, Jiansheng
AU - Sun, Xiuyun
AU - Shen, Jinyou
AU - Han, Weiqing
AU - Wang, Lianjun
N1 - Publisher Copyright:
© 2015 Elsevier B.V..
PY - 2015/12/20
Y1 - 2015/12/20
N2 - The growing attention to ultrafiltration (UF) processes from drinking water treatment raises the development of restrain strategy for membrane fouling. In this study, a simple method for fabricating fouling-resistant polyethersulfone (PES) UF membranes is described. The hydrophilic hollow mesoporous silica sphere (HMSS) prepared via surfactant-assembly sol-gel route were blended into PES membranes to enhance the filtration property and fouling resistance. The hydrophilicity of the membrane surface was improved by the integration of HMSS, leading to a reduction in membrane contact angle. When incorporating 1.5% HMSS into the casting solution, the pure water flux reached the maximum (195.7L/m2h) under 0.1MPa while still remained the high rejection to BSA (92.6%). Furthermore, the fouling resistance, especially the irreversible fouling resistance was improved for membrane with 1.5% HMSS compared with the pristine PES membrane using BSA as the model foulant. However, as continue to increase the concentration of HMSS up to 2%, no benefit was brought to the PES membrane owing to particle agglomeration and pore blockage. Furthermore, the UF experiment confirmed that the unique hollow structure of HMSS endowed the UF membrane with improved pure water permeability, comparing with the mesoporous silica spheres (MSS) with solid cores. These characteristics provided the further wide application of composite UF membrane in the drinking water treatment area.
AB - The growing attention to ultrafiltration (UF) processes from drinking water treatment raises the development of restrain strategy for membrane fouling. In this study, a simple method for fabricating fouling-resistant polyethersulfone (PES) UF membranes is described. The hydrophilic hollow mesoporous silica sphere (HMSS) prepared via surfactant-assembly sol-gel route were blended into PES membranes to enhance the filtration property and fouling resistance. The hydrophilicity of the membrane surface was improved by the integration of HMSS, leading to a reduction in membrane contact angle. When incorporating 1.5% HMSS into the casting solution, the pure water flux reached the maximum (195.7L/m2h) under 0.1MPa while still remained the high rejection to BSA (92.6%). Furthermore, the fouling resistance, especially the irreversible fouling resistance was improved for membrane with 1.5% HMSS compared with the pristine PES membrane using BSA as the model foulant. However, as continue to increase the concentration of HMSS up to 2%, no benefit was brought to the PES membrane owing to particle agglomeration and pore blockage. Furthermore, the UF experiment confirmed that the unique hollow structure of HMSS endowed the UF membrane with improved pure water permeability, comparing with the mesoporous silica spheres (MSS) with solid cores. These characteristics provided the further wide application of composite UF membrane in the drinking water treatment area.
KW - Antifouling
KW - Composite membrane
KW - Hollow mesoporous silica
KW - Ultrafiltration
UR - https://www.scopus.com/pages/publications/84944055621
U2 - 10.1016/j.colsurfa.2015.09.070
DO - 10.1016/j.colsurfa.2015.09.070
M3 - 文章
AN - SCOPUS:84944055621
SN - 0927-7757
VL - 487
SP - 180
EP - 189
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
ER -