Effect of zirconia to silica ratio on methane reforming with CO2 was reported also
with high efficiency [22].
Chitosan (CS)is known as the most abundant natural
biopolymer after cellulose. It is a cationic polymer obtained
by partial N-deacetylation of chitin.
It has reactive hydroxyl
(OH) and amino(NH2) groups and exhibits unique adsorption
and chelating abilities for all heavy metal ions and for drug
delivery systems [26–29].