• 文献标题:   Hydrophobic, superabsorbing materials from reduced graphene oxide/MoS2 polyurethane foam as a promising sorbent for oil and organic solvents
  • 文献类型:   Article
  • 作  者:   JOY J, ABRAHAM J, SUNNY J, MATHEW J, GEORGE SC
  • 作者关键词:   hybrid pu foam, water contact angle, selectivity, recyclability, sorption capacity
  • 出版物名称:   POLYMER TESTING
  • ISSN:   0142-9418 EI 1873-2348
  • 通讯作者地址:   Amal Jyothi Coll Engn
  • 被引频次:   2
  • DOI:   10.1016/j.polymertesting.2020.106429
  • 出版年:   2020

▎ 摘  要

This study illustrates the preparation of robust superhydrophobic and superoleophilic reduced graphene oxide (rGO) and MoS2 nanoparticles incorporated polyurethane (PU) foam by in-situ polymerization via the one-shot method. Spectroscopic analyses confirmed the successful formation of nanoparticles and also the development of the hybrid PU material. The sponges were evaluated based on hydrophobicity and oil absorbance capacities and the modified foam exhibits the water contact angle of 151 degrees. The pore size of the foam analyzed using an optical microscope and the effect on the density and porosity were also analyzed. The oil absorption capacity of the foam was studied using standard sorption testing. The oil and organic solvent selectivity and recyclability of hybrid PU foam were performed to estimate whether the foams could be recycled and reused. The modified system shows very high selectivity (83-94%). The recyclability of the foam was about 35 cycles without much reduction in its own weight and after 55 cycles more than 80% of the oil absorption capacity was conserved. The resulting hybrid PU material is highly efficient, porous, ultralight, hydrophobic and reusable sorbent material and displays great potential for versatile environmental remediation.