Abstract
AbstractTo effectively remove the toxic dyes from wastewater, sodium alginate (SA)/β‐cyclodextrin(β‐CD) nanofibrous composite membranes with average fiber diameters of 167–174 nm are obtained by an electrospinning method. The adsorption capacity of the SA/β‐CD membrane for methylene blue is 2776 mg g–1, much higher than that of a pure SA membrane (1780 mg g–1). The incorporation of β‐CD also improves the adsorption rate significantly. The adsorption mechanism is mainly the synergy of the electrostatic attraction of SA and the host–guest interaction of β‐CD. Meanwhile, the SA/β‐CD nanofibrous membranes can be used in a wide pH range, and maintain excellent adsorption capacity after four cycles. The rapid adsorption efficiency and excellent adsorption capacity of SA/β‐CD nanofibrous membrane endows great potential in the field of wastewater treatment.
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