Zhou, C.; Zhang, J.; Fu, Y.; Wu, M.; Zhang, H.; Shi, Q.; Dai, Y.; Zhao, H. High-Value Oil–Water Separation Materials Prepared from Waste Polyethylene Terephthalate. Molecules2023, 28, 7503.
Zhou, C.; Zhang, J.; Fu, Y.; Wu, M.; Zhang, H.; Shi, Q.; Dai, Y.; Zhao, H. High-Value Oil–Water Separation Materials Prepared from Waste Polyethylene Terephthalate. Molecules 2023, 28, 7503.
Zhou, C.; Zhang, J.; Fu, Y.; Wu, M.; Zhang, H.; Shi, Q.; Dai, Y.; Zhao, H. High-Value Oil–Water Separation Materials Prepared from Waste Polyethylene Terephthalate. Molecules2023, 28, 7503.
Zhou, C.; Zhang, J.; Fu, Y.; Wu, M.; Zhang, H.; Shi, Q.; Dai, Y.; Zhao, H. High-Value Oil–Water Separation Materials Prepared from Waste Polyethylene Terephthalate. Molecules 2023, 28, 7503.
Abstract
As one of the important wastes, waste PET pollutes human living and natural environment seriously. PET is an important solid waste that needs to be recycled at present. The complete degradation of PET was realized at low temperature. The lipophilic hydrophobic membrane was formed on the surface of stainless steel mesh (SSM) by a simple dip coating method, and the oil-water separation material was successfully prepared. Due to the load of degradation products, the surface roughness of SSM increased from 19.09 μm increased to 62.33 μm. The surface changed from hydrophilic to hydrophobic, and the water contact angle increased to 123o. The oil-water separation flux of modified SSM is 9825 L/(m2·h) and the separation efficiency is 98.99%. The modified SSM has good reuse performance. This hydrophobic modification method can also be used to modify other porous substrates, such as activated carbon, filter paper, foam, and other materials. In this study, the porous substrate modified by the degradation product of waste PET was used to prepare oil-water separation materials, which not only solved the problem of white pollution, but also reduced the dependence on non renewable resources in the conventional preparation methods of oil-water separation materials. The research provided new raw materials and methods for the industrial production of oil-water separation materials, and had important application prospects.
Keywords
waste PET; recycle; water/oil separation; high value reuse
Subject
Chemistry and Materials Science, Polymers and Plastics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
