Lignin Microsphere/TiO 2 Composite-Based Melamine Sponge with Superhydrophobic and Photothermal Properties for Oil/Water Separation and Anti-Icing

Frequent oil spills and the discharge of oily wastewaters have caused a serious threat to the environment, ecological systems, and the health of human beings. Herein, a durable photothermal and superhydrophobic melamine sponge has been prepared by decorating lignin microspheres (LMs) and TiO2 nanoparticles via the self-polymerization of dopamine. The superhydrophobic sponge shows excellent chemical stability, thermal stability, mechanical durability, and recyclability. The adsorption capacities of the superhydrophobic sponge for oils and organic solvents range from 22.4 to 84.2 g/g, showing high separation efficiencies larger than 98.6% after 15 cyclic tests. Due to the photothermal effect, the maximum surface…

• NN
  National Natural Science Foundation of China

  Award: 51803043
• HD
  Hangzhou Dianzi University

  Award: TKYZ203718039