期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 32, 页码 17947-17953出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04648
关键词
polyvinylidene fluoride; sulfonated polyandine; zwitterionic surface; antifouling; membrane fouling
资金
- National Science Foundation of China [21174027]
- Program for New Century Excellent Talents in University [NCET-12-0827]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
- Innovation Funds for PhD Students of Donghua University [CUSF-DH-D-2015027]
On the basis of the excellent fouling resistance of zwitterionic materials, the super antifouling polyvinylidene fluoride (PVDF) membrane was efficiently prepared though one-step sulfonation of PVDF and polyaniline blend membrane in situ. The self-doped sulfonated polyaniline (SPANI) was generated as a novel zwitterionic polymer to improve the antifouling property of PVDF ultrafiltration membrane used in sewage treatment. Surface attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, surface zeta potential, and water contact angle demonstrated the successful fabrication of zwitterionic interface by convenient sulfonation modification. The static adsorption fouling test showed the quantified adsorption mass of bovine serum albumin (BSA) pollutant on the PVDF/SPANI membrane surface decreases to 3 (+/- 2) mu g/cm(2), and the water flux recovery ratio (FRR) values were no less than 95% for the three model pollutants of BSA, sodium alginate (SA), and humic acid (HA), which were corresponding hydrophobic, hydrophilic, and natural pollutants in sewage, respectively. This Research Article demonstrated the antifouling advantages of zwitterionic SP.ANI and aimed to provide a simple method for the large scale preparation of zwitterionic antifouling ultrafiltration membranes.
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