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首页> 外文期刊>Separation and Purification Technology >Photo-Fenton assisted self-cleaning hybrid ultrafiltration membranes with high-efficient flux recovery for wastewater remediation
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Photo-Fenton assisted self-cleaning hybrid ultrafiltration membranes with high-efficient flux recovery for wastewater remediation

机译：光芬顿辅助自清洁混合杂交超滤膜，具有高效的污水恢复，用于废水修复

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Membrane fouling problems severely hindered the integrated development of membrane technology. Currently, construction of a fouling-resistance membrane was an everlasting and ubiquitous research focus. In this study, beta-FeOOH nanorods were anchored onto commercial polysulfone (PSF) ultrafiltration (UF) membranes surface via in-situ mineralization to fabricate an anti-fouling UF membrane for organic and dyes wastewater treatment. The ion-dipole interaction and pi-cation interaction between Fe3+ and PSF chains guaranteed beta-FeOOH nanorods attaching onto the surface without an intermediate layer. A satisfying flux recovery ratio (93.6% and 94.3%) and a low irreversible fouling ratio (6.4% and 5.9%) for bovine albumin (BSA) and sodium alginate (SA) solutions, respectively, were acquired on account of the photo-Fenton catalytic property and hydrophilicity of nanorods without sacrificing the permeation flux sharply. Importantly, the resultant membrane exhibited a desirable separation performance for various dyes solutions, with high permeation flux (53.6-100.0 L.m(-2).h(-1).bar(-1)) and appropriate rejection rates (60.9-92.6%). This work not only improved the anti-organic fouling performance extensively, but also provided a novel insight to decorate the conventional UF membrane surface straightforward without an intermediate layer.
机译：膜污染问题严重阻碍了膜技术的综合发展。目前，建设污垢抗性膜是永恒和普遍存在的研究重点。在本研究中，通过原位矿化将β-FeOOH纳米棒锚定到商业聚砜（PSF）超滤（UF）膜表面上，以制造用于有机和染料废水处理的防污染UF膜。 Fe3 +和PSF链之间的离子偶极相互作用和PI-阳离子相互作用保证了β-FeOOH纳米棒，其在没有中间层的情况下将其附着到表面上。在储顿的情况下，分别在牛白蛋白（BSA）和藻酸钠（SA）溶液中令人满意的助焊剂回收率（93.6％和94.3％）和低不可逆转的污垢比（6.4％和5.9％）纳米棒的催化性质和亲水性而不急剧地牺牲渗透助焊剂。重要的是，所得膜表现出各种染料溶液的理想分离性能，具有高渗透通量（53.6-100.0 LM（-2）.h（-1）.bar（-1））和适当的拒绝率（60.9-92.6％ ）。这项工作不仅可以广泛改善了抗有机污垢性能，而且还提供了一种新颖的洞察力，可以在没有中间层的情况下直接地装饰传统的UF膜表面。

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