Research Article

Fabrication of Electrospun Polyamide-6/Chitosan Nanofibrous Membrane toward Anionic Dyes Removal

Table 1

Levels of different independent variables in coded and actual forms.

Independent variableRange and levels
α (−2)−10+1+α (+2)

A: solution pH 357911
B: initial dye concentration (mg/L) 255075100125
C: electrospinning time (hr) 12345
D: chitosan ratio (%)010203040