Synthesis and Characterization of Hydroxyapatite- (HAP-) Clay Composites and Adsorption Studies on Methylene Blue for Water Treatment

Table 1

Experimental batches for HAP-clay mixtures.

Mass of HAP (mg)	Mass of each clay mineral (mg)
	1st set: 20% HAP mass	2nd set: 15% HAP mass	3rd set: 10% HAP mass
20.0	4	3	2
30.0	6	4.5	3
40.0	8	6	4
50.0	10	7.5	5
60.0	12	9	6
70.0	14	10.5	7
80.0	16	12	8
90.0	18	13.5	9
100.0	20	15	10