Influence of Dispersed TiO<sub>2</sub> Nanoparticles via Steric Interaction on the Antifouling Performance of PVDF/TiO<sub>2</sub> Composite Membranes
Jie Zhang,
Zicong Jian,
Minmin Jiang,
Bo Peng,
Yuanyuan Zhang,
Zhichao Wu,
Junjian Zheng
Affiliations
Jie Zhang
School of Chemistry and Materials Engineering, Huizhou University, 46 Yanda Road, Huizhou 516007, China
Zicong Jian
School of Chemistry and Materials Engineering, Huizhou University, 46 Yanda Road, Huizhou 516007, China
Minmin Jiang
College of Life and Environmental Science, Guilin University of Electronic Technology, 1 Jinji Road, Guilin 541004, China
Bo Peng
School of Chemistry and Materials Engineering, Huizhou University, 46 Yanda Road, Huizhou 516007, China
Yuanyuan Zhang
College of Life and Environmental Science, Guilin University of Electronic Technology, 1 Jinji Road, Guilin 541004, China
Zhichao Wu
State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
Junjian Zheng
College of Life and Environmental Science, Guilin University of Electronic Technology, 1 Jinji Road, Guilin 541004, China
Herein, the influence of various contents of polyethylene glycol (PEG) on the dispersion of TiO2 nanoparticles and the comprehensive properties of PVDF/TiO2 composite membranes via the steric hindrance interaction was systematically explored. Hydrophilic PEG was employed as a dispersing surfactant of TiO2 nanoparticles in the pre-dispersion process and as a pore-forming additive in the following membrane preparation process. The slight overlap shown in the TEM image and low TSI value (2), a higher interaction energy barrier (0.65 KT) and low flux declination during the filtration process. The high critical flux and low fouling rate both in winter and summer as well as the long-term running operation in A/O-MBR firmly supported the elevated antifouling performance, which implies a promising application in the municipal sewage treatment field.
