In this work, at the first step hardwood pulp was modified by the maleic anhydride; and then electrospinning of modified solution was carried out under different voltages. At last, obtained fibres was washed with water and aqueous 70% (w/w) ethanol and prepared to use as a nano absorbent. The synthesized absorbent was characterized by SEM and FTIR. The degree of substitution of modification reaction is 1-1.8 by titration method. The effect of other parameters like pH, contact time and temperature on removal was studied. The results show that the modified CNF has a great capacity of absorption for Hg(II).

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