Facile Preparation of Biocomposite from Prawn Shell Derived Chitosan and Kaolinite-Rich Locally Available Clay

Table 2

Elemental analysis of raw clay, purified clay, and modified clay.

Elements	Raw clay (%)	Purified clay (%)	Modified clay (MC) (%)
Silicon (Si)	69.9	76.4	77.0
Aluminum (Al)	14.5	10.8	10.8
Potassium (K)	3.72	4.04	4.16
Titanium (Ti)	4.03	3.77	3.65
Iron (Fe)	5.38	3.01	2.87
Calcium (Ca)	0.56	0.29	0.22
Others	2.05	1.74	1.72