Polymer electrospun fibers are potential candidates for use as ionic dye adsorbents, due to its low cost and massive production provided by a simple nanofabrication method. The optimization in the processing variables for development of more efficient adsorbents revealed a strong dependence between the fiber diameter and the adsorption capacity of fibers, which was measured as a function of dye concentration, pH, adsorbent amount and contact time. The available active sites on electrospun fibers favor the efficient dye removal and easy desorption, allowing the successive reuse of electrospun fibers, preserving typical adsorption capacity of 135.37 mg center dot g(-1) in association with fast desorption at acidic condition, allowing successive reuses of adsorbents.