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The present study intends to prepare nanofibers mat of polyacrylonitrile by electrospinning technique
and investigates their adsorption capacity to Congo red dye from the aqueous solution, after characterize
it by different techniques such as FTIR, SEM, EDA, XRD and BET. The influence factors on adsorption
were studied including adsorbent dosage, initial concentration, contact time, pH and ionic strength. The
results confirmed that the increasing in pH decreases the adsorption capacity. So, the optimum
adsorbent dosage, initial concentration and contact time were 0.006 g, 25 mg/L and 150 min respectively.
The isotherm models of Freundlich and Langmuir were applied on the experimental adsorption data to
evaluate the maximum capacity and ener
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