Iodine number is milligrams adsorbed of iodine (mg) per 1g of adsorbent.
It gives an information for the micropores content on the surface (values > 0 to 20 Å, or up to 2nm) 27. The iodine number of SVTPUP@ZnONPs is 3.62 mmol/g (459.05 mg/g). The high value of iodine number shows more ability for removing the small sized contaminates (
