TY - JOUR
T1 - Effect of mixed SiO2 nanoparticle/TiO2 sol on structure and performance of PVDF composite membranes
AU - Zhao, Changwei
AU - Yan, Yong
AU - Zeng, Chuyi
AU - Zhao, Hong
AU - Wang, Tao
AU - Luan, Zhaokun
PY - 2012
Y1 - 2012
N2 - Mixed TiO2 sol and SiO2 nanoparticles in different proportions were added into PVDF membrane, and their effects on pure water flux, retention rate and mechanical properties of PVDF membrane were discussed. The SiO2-TiO2/PVDF membrane surface and section structures were characterized by SEM, FT-IR, and XRD analyses. In addition, membrane mechanical properties and hydrophilicity were tested. The results indicated that mixed TiO2 sol and SiO2 nanoparticles could increase both hydro-philic and mechanical strength of PVDF membrane. When the SiO 2/TiO2 mixed ratio was 3:10, membrane performance was optimized (porosity 81%, flux 13.9 L-m2·h -1·KPa, retention rate 78%, tensile strength maximum loading 50N, tensile stress 3.18MPa, tensile strain 18%).
AB - Mixed TiO2 sol and SiO2 nanoparticles in different proportions were added into PVDF membrane, and their effects on pure water flux, retention rate and mechanical properties of PVDF membrane were discussed. The SiO2-TiO2/PVDF membrane surface and section structures were characterized by SEM, FT-IR, and XRD analyses. In addition, membrane mechanical properties and hydrophilicity were tested. The results indicated that mixed TiO2 sol and SiO2 nanoparticles could increase both hydro-philic and mechanical strength of PVDF membrane. When the SiO 2/TiO2 mixed ratio was 3:10, membrane performance was optimized (porosity 81%, flux 13.9 L-m2·h -1·KPa, retention rate 78%, tensile strength maximum loading 50N, tensile stress 3.18MPa, tensile strain 18%).
KW - Membrane performance
KW - Membrane structure
KW - Polyvinylidene fluoride (PVDF)
KW - SiO nanoparticles
KW - TiO sol
UR - https://www.scopus.com/pages/publications/84871211655
M3 - Article
AN - SCOPUS:84871211655
SN - 1018-4619
VL - 21
SP - 2859
EP - 2865
JO - Fresenius Environmental Bulletin
JF - Fresenius Environmental Bulletin
IS - 10
ER -