• 文献标题:   Silk fibroin-graphene oxide functionalized melamine sponge for efficient oil absorption and oil/water separation
  • 文献类型:   Article
  • 作  者:   ZHOU J, ZHANG Y, YANG YQ, CHEN ZF, JIA GW, ZHANG L
  • 作者关键词:   graphene oxide, silk fibroin, oil/water separation, hydrophobic, melamine sponge
  • 出版物名称:   APPLIED SURFACE SCIENCE
  • ISSN:   0169-4332 EI 1873-5584
  • 通讯作者地址:   Shanghai Univ Engn Sci
  • 被引频次:   6
  • DOI:   10.1016/j.apsusc.2019.143762
  • 出版年:   2019

▎ 摘  要

Various oil and organic solvent spill accidents have resulted in severe environmental issues. Thus, hydrophobic sorbents have drawn much attention for oil spill cleanup. An oil/water separation material with robust mechanical properties was developed by modifying melamine sponge with silk fibroin-graphene oxide (SGMS). Here, silk fibroin was used as a molecular binder to combine graphene oxide and the melamine sponge. After modification, the surface of the sponge became hydrophobic. The SGMS exhibited excellent oil adsorption capacity (up to 76 times its own weight), efficient oil-water separation, good mechanical properties (100 cycles), and superior recyclability (50 times). Moreover, SGMS can be used in the separation of surfactant-stabilized oil/water emulsions with excellent separation efficiency and for the continuous separation of oil/water in a pumping state. These excellent properties indicate that SGMS can be industrially produced and is suitable for the adsorption of organic pollutants under realistic conditions.