grafted polyacrylamide onto cotton cellulose using ceric ammonium sulphate as initiator and
studied the removal of Hg(II) from aqueous solution and achieved a Hg(II) uptake level of 12.5 mg g1.
In another study, Hashem (2006) grafted sunflower stalks with acrylonitrile using KMnO4/citric acid redox initiator system.
Amidoximation of the grafted stalks with hydroxylamine hydroxide in alkaline medium was carried
out.
The maximum uptake capacity of this adsorbent for Cu(II) was 39 mg g1.