Figure 6 | Scientific Reports

Figure 6

From: Novel fabrication of hydrophobic/oleophilic human hair fiber for efficient oil/water separation through one-pot dip-coating synthesis route

Figure 6

After immersion in pH 2, 7 (3.5 wt% NaCl solution) and 10 for 4 h, the morphology of HHF-PODS was almost unchanged, and a dense coating of PODS on the HHF-PODS surface was preserved, while intact fibrosis also verified the excellent resistance. (a–c) Reusability experiments of HHF-PODS for separating oil/water mixtures. The light oil (toluene)/water mixture was separated 10 times (d). The heavy oil (CCl4)/water mixture was separated 10 times (e), with an oil/water mixture separation efficiency higher than 99.0%. The WCA of HHF-PODS and separation ability after the 10 successive reusability tests with sand paper (f).

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