The rational design of 2D hybrid materials has gained substantial attention in the field of membrane-based water treatment. In this study, a hierarchical flower-like MoS/g-CN (Hf-MoCN) hybrid has been reported as a modifier for antifouling and performance enhancement of polysulfone (PSF) membranes. PSF membranes modified with 0.1, 0.3, and 0.5 wt% of Hf-MoCN were prepared by phase inversion technique. The prepared membranes were examined for their morphology, contact angle, pore size, and porosity. Further, the ultrafiltration performance and antifouling ability of the PSF/ Hf-MoCN were examined through BSA filtration studies. The contact angle dropped from 78° to 55° when 0.3 wt% of Hf-MoCN was incorporated into the PSF matrix. Moreover, the pure water and BSA fluxes of this modified membrane were improved by 2.1 and 3.6 folds, respectively, compared to the bare membrane. Besides, all Hf-MoCN modified membranes showed higher BSA rejection efficiency than the unmodified membrane. Flux recovery ratio studies showed that the membrane modified with 0.3 wt% of Hf-MoCN had better antifouling ability than the other membranes. Thus, the study showed that the incorporation of Hf-MoCN provided the membrane with a versatile transport pathway and desirable surface properties, thus improving its wettability, filtration performance and antifouling ability.

中文翻译：

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MoS2/g-C3N4 工程聚砜 (PSF) 膜的 2D/2D 纳米杂化物，具有增强的过滤和防污性能

二维杂化材料的合理设计在膜水处理领域引起了广泛关注。在这项研究中，一种分层花状 MoS2/g-CN (Hf-MoCN) 杂化物被报道为聚砜 (PSF) 膜防污和性能增强的改性剂。通过相转化技术制备了用 0.1、0.3 和 0.5 wt% Hf-MoCN 改性的 PSF 膜。检查制备的膜的形态、接触角、孔径和孔隙率。此外，通过 BSA 过滤研究检验了 PSF/ Hf-MoCN 的超滤性能和防污能力。当 PSF 基质中加入 0.3 wt% 的 Hf-MoCN 时，接触角从 78° 下降到 55°。此外，与裸膜相比，这种改性膜的纯水和BSA通量分别提高了2.1和3.6倍。此外，所有 Hf-MoCN 修饰膜均表现出比未修饰膜更高的 BSA 截留效率。通量回收率研究表明，0.3 wt% Hf-MoCN 改性的膜比其他膜具有更好的防污能力。因此，研究表明，Hf-MoCN的掺入为膜提供了多功能的传输途径和理想的表面性能，从而提高了其润湿性、过滤性能和防污能力。