School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
J Colloid Interface Sci. 2021 Oct;599:178-189. doi: 10.1016/j.jcis.2021.04.082. Epub 2021 Apr 20.
Photocatalytic materials can be used as self-cleaning functional materials to alleviate the irreversible fouling of ultrafiltration membranes. In this work, the small size g-CN/BiMoO (SCB) blended polysulfone (PSF) ultrafiltration membranes was fabricated by hydrothermal and phase inversion methods. As a functional filler of ultrafiltration membranes, the small size g-CN nanosheet decorated on the surface of BiMoO can enhance the photocatalytic performance for bovine serum albumin (BSA) degradation, and remove irreversible fouling under visible light irradiation. In addition, the introduction of SCB microspheres into PSF matrix obviously increased the porosity of ultrafiltration membranes. Therefore, the SCB-PSF ultrafiltration membranes displayed excellent antifouling performance (flux recovery ratio is 82.53%) and BSA rejection rates (94.77%). SCB-PSF also had high photocatalytic self-cleaning activity, indicating excellent application prospects in organic wastewater treatment.
光催化材料可用作自清洁功能材料，以减轻超滤膜的不可逆污染。在这项工作中，通过水热法和相转化法制备了小尺寸 g-CN/BiMoO（SCB）共混聚砜（PSF）超滤膜。作为超滤膜的功能填充剂，表面修饰有 g-CN 纳米片的小尺寸 BiMoO 可以增强对牛血清白蛋白（BSA）的光催化降解性能，并在可见光照射下去除不可逆污染。此外，SCB 微球的引入明显增加了超滤膜的孔隙率。因此，SCB-PSF 超滤膜表现出优异的抗污染性能（通量恢复率为 82.53%）和 BSA 截留率（94.77%）。SCB-PSF 还具有高的光催化自清洁活性，表明其在有机废水处理方面具有广阔的应用前景。
