摘要
为改善PVDF-g-PSSA膜性能,探索应用于微生物燃料电池(MFC)的廉价高效,耐污染的质子交换膜。将磺化纳米Si O_2和Si O_2-SO_3H与PVDF-g-PSSS颗粒共混成膜,对其进行了表征,研究了主要性能及抗污染机制。结果表明,当Si O_2-SO_3H添加质量分数达5%时,改性膜的含水率(41.02%)、离子交换容量(3.18 mmol/g)、质子传导率(54.1 m S/cm)达到最优。在超纯水和50 mmol/L的磷酸盐缓冲溶液中,该膜较未改性前膜表面的蛋白质吸附量降低,吸附层更为疏松,有更低的负ζ电位,抗污染性较好。
In order to improve the performance of PVDF-g-PSSA membrane,explore a cheap,efficient and fouling resistant proton exchange membrane for microbial fuel cell（MFC）.Sulfonated Si O2/Si O2-SO3H nanoparticles and PVDF-g-PSSS particles were blended into membranes.Membrane was characterized to study the main performance and anti-fouling mechanism of the membrane.The results showed that,when the mass fraction of SiO2-SO3H dosage was 5%,the performance of modified membrane was optimized,the moisture content,ion exchange capacity and proton conductivity was 41.02%,3.18mmol/g and 54.1 mS/cm respectively.In ultrapure water and 50 mmol/L phosphate buffered solution,the protein adsorption capacity of the membrane was lower than that of the unmodified membrane,and the adsorption layer was more porous,with lower negativeζpotential and better anti-fouling performance.
作者
李广远
王磊
李陈
王旭东
李脆脆
许岐斌
LI Guangyuan;WANG Lei;LI Chen;WANG Xudong;LI Cuicui;XU Qibin(School of Environmental and Municipal Engineering, Xi＇an University of Architecture and Technology, Key Loboratory of Membrane Separation of Shaanxi Province, Research Institute of Membrane Separation Technology of Shaanxi Province,Xi＇an 710055, China)
出处
《水处理技术》
CAS
CSCD
北大核心
2018年第5期38-42,共5页
Technology of Water Treatment
基金
陕西省重点科技创新团队计划(2017KCT-19-01)
作者简介
李广远（1993-），男，硕士研究生，研究方向为微生物燃料电池离子交换膜联系电话：15109235381；电子邮件：648843089@qq．com;联系作者：王磊，教授；电子邮件：wl0178@126．com
