当前位置: X-MOL 学术Korean J. Chem. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Integrating advanced Keggin-structure polyoxometalate into polymeric membrane to enhance photocatalytic self-cleaning and antifouling functionalities
Korean Journal of Chemical Engineering ( IF 2.9 ) Pub Date : 2022-01-09 , DOI: 10.1007/s11814-021-0945-7
Daniel Chin Hao Koo 1 , Nee Nee Tan 1 , Qi Hwa Ng 1, 2 , Siti Kartini Enche Ab Rahim 1, 2 , Ryan Yow Zhong Yeo 1 , Siew Chun Low 3
Affiliation  

The high photocatalytic activity of environmentally benign Keggin-type polyoxometalate (POM) was introduced into polyethersulfone (PES) membrane to promote membrane anti-fouling and self-cleaning functionality. Neat PES and POM/PES hybrid membranes were synthesized via phase inversion method. X-ray diffraction (XRD) and attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy proved the success of synthesizing Keggin-type POM. The traits of the membranes were evaluated using scanning electron microscopy (SEM), ATR-FTIR, contact angle measurement, porosity and porometer. The hydrophilicity of all the POM/PES hybrid membranes was enhanced and resulted in the reduction of contact angle of the membrane (52.21±0.1101°, 45.11±0.6657° and 50.30±0.1054°) for 0.025, 0.05 and 0.1 wt% POM/PES hybrid membranes, respectively, compared to that of the neat PES membrane (57.30±0.0817°). Additionally, all the POM/PES hybrid membranes showed excellent anti-fouling and self-cleaning characteristics as compared to that of the neat PES membrane. 0.05 wt% POM/PES hybrid membrane outstood all the other membranes, which marks the HA rejection at 77.12% and was able to achieve flux recovery ratio (FRR) of 111.34% with temporal superhydrophilicity effect in just merely 150 seconds at 254 nm UV irradiation.



中文翻译:

将先进的 Keggin 结构多金属氧酸盐集成到聚合物膜中以增强光催化自清洁和防污功能

将环境友好型 Keggin 型多金属氧酸盐 (POM) 的高光催化活性引入聚醚砜 (PES) 膜中,以促进膜的防污和自清洁功能。Neat PES 和 POM/PES 杂化膜通过相转化法合成。X射线衍射(XRD)和衰减全反射-傅里叶变换红外(ATR-FTIR)光谱证明合成Keggin型聚甲醛是成功的。使用扫描电子显微镜 (SEM)、ATR-FTIR、接触角测量、孔隙率和孔隙率计评估膜的特性。所有 POM/PES 杂化膜的亲水性均增强,导致膜的接触角降低(52.21±0.1101°、45.11±0.6657° 和 50.30±0.1054°),分别为 0.025、0.05 和 0.1 wt% POM/PES混合膜,分别,与纯PES膜相比(57.30±0.0817°)。此外,与纯 PES 膜相比,所有 POM/PES 杂化膜都表现出优异的防污和自清洁特性。0.05 wt% POM/PES 杂化膜优于所有其他膜,这标志着 HA 排斥率为 77.12%,在 254 nm 紫外线照射下仅 150 秒即可实现 111.34% 的通量恢复率 (FRR) 和瞬时超亲水性效应.

更新日期:2022-01-09
down
wechat
bug