TY - JOUR
TI - A superhydrophobic nanofiber membrane and its application to dye filtration using membrane distillation
AU - Zhao Lei
AU - Wang Qianwen
AU - Wei Li
AU - Zhu Ting
AU - Zhao Jumei
JN - Thermal Science
PY - 2024
VL - 28
IS - 3
SP - 2241
EP - 2250
PT - Article
AB - Direct contact membrane distillation tests are carried out on four kinds of  dye solutions using the superhydrophobic polyvinylidene  difluron-copolymerized hexafluoro-propylene nanofiber membrane (PH-E) and  its modification coated with polydime-thylsiloxane (PDMS) nanoparticles  (PDMS-PH-E membrane). The test results show that PDMS-PH-E membrane has  higher water flux, and the removal efficiency of four dyes reaches 100%.  While the removal efficiency of the PH-E membrane reaches 100% only for two  dyes. The loosely absorbed dye structure on PDMS-PH-E membrane roughens the  surface, and stimulates the negatively charged droplets to bounce, resulting  in an effective anti-fouling and self-cleaning effect and a long-term  scaling prevention.