首页|Optimizing the microstructure and properties of microfiltration carbon membranes enabled with wastewater
Optimizing the microstructure and properties of microfiltration carbon membranes enabled with wastewater
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Separation of oil-in-water emulsion is a formidable challenge for a large variety of aca-demia and industries involved in the fields of materials, environment, chemistry and resources. Here, microfiltration carbon membranes (MFCMs) were fabricated by the blending of polyacrylonitrile fibers (PANf) and phenolic resin as starting materials through the processes of shaping and pyrolysis. The functional groups, thermal stability, porous structure, microstructure, mechanical strength, morphology and hydrophilicity of the MFCMs were characterized by Fourier transform infrared spectrometer, thermogravimetric analyzer, bubble pressure method, X-ray diffraction, electronic universal tester, scanning electron microscope and water contact angle tester, respectively. The separation performance of MFCMs with respect to the removal of emulsified oil from wastewater was investigated by varying the PANf amount, reusability and antifouling ability. The results showed that the incorporation of PANf enhanced the thermal stability of the precursor membranes. As the PANf amount increases in precursor membranes, the average pore size and mechanical strength of MFCMs gradually decrease, together with the increment of porosity and hydrophilicity. The optimal oil rejection reaches to 94.2 %, along with the permeation flux of 15000 kg·m~(-2)·h~(-1)·MPa~(-1) for MFCMs made by PANf in a content of 3 %.
Liaoning Province Professional and Technical Innovation Center for Fine Chemical Engineering of Aromatics Downstream, School of Petrochemical Engineering, Shenyang University of Technology, 30 Guanghua Street, Liaoyang 111003, China
NSTL
