Effect of electrokinetic property membrane on bovine serum of charged polyether sulfone albumin fouling behavior
Effect of electrokinetic property membrane on bovine serum of charged polyether sulfone albumin fouling behavior作者机构：School of Science Xi'an University of Architecture and Technology Xi'an 710055 China School of Environmental & Municipal Engineering Xi'an University of Architecture and Technology Xi'an 710055 China
出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)
年 卷 期：2017年第11卷第2期
页 面：43-54页
核心收录：
学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学]
基 金：Acknowledgements This research was supported by Innovative Research Team of Xi'an University of Architecture and Technology the National Natural Science Foundation of China (Grant Nos. 51178378 and 51278408) and the Youth Science Foundation Project (No. 21607118)
主 题：Charged PES UF membraneBSAElectrokinetic characterizationAdhesion forceJump distance
摘 要：Negatively charged carboxymethylated polyethersulfone （CMPES） and positively charged quater- nized polyethersulfone （QAPES） ultrafiltration （UF） membranes were prepared by bulk chemical modification and non-solvent induced phase separation method. The effects of PES membrane interracial electrokinetic property on the bovine serum albumin （BSA） membrane fouling behavior were studied with the aid of the membrane-modified colloidal atomic force microscopy （AFM） probe. Electrokinetic test results indicated that the streaming potential （AE） of QAPES membrane was not consistent with its expected 1EC value, however, within the pH range of 3-10, the ζpotentials of two charged-modified PES membranes were more stable than the unmodified membrane. When pH value was 3, 4.7 or 9, the interaction behavior between charged PES membrane and BSA showed that there was significant linear correlation between the jump distance ro ofmembrane-BSA adhesion force （F/R） and the ~＂ potential absolute value. Charged modification significantly reduced the adhesion of PES membrane-BSA, and the adhesion data was good linear correlated with the flux decline rate in BSA filtration process, especially reflected in the CMPES membrane. The above experimental facts proved that the charged membrane interracial electric double layer structure and its electrokinetic property had strong ties with the protein membrane fouling behavior.
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