. Author manuscript; available in PMC: 2013 Dec 15.

Published in final edited form as: J Colloid Interface Sci. 2011 Apr 27;360(2):10.1016/j.jcis.2011.04.065. doi: 10.1016/j.jcis.2011.04.065

Table 3.

Composition, grafting %, and C/O and C/N ratios of polymer-grafted RH surfaces

Rice Husk	Elemental surface composition % and Grafting %									Elemental ratio
Rice Husk	Elemental surface composition % and Grafting %									Observed		Theoretical
	C 1s	N 1s	O 1s	F 1s	Si 2p	Cl 2p	Cu 2p	Br 3d	G%	C/O	C/N	C/O	C/N
RH-g-PMMA	65.9	4.9	23.7	-	2.0	1.9	0.1	1.5	7	2.78	-	2.5	-
RH-g-PAN	72.9	18.2	7.0	0.8	1.2	-	-	0.2	16	-	4	-	3
RH-g-PMMA-b-PAN	74.3	19.5	4.8	0.7	0.5	-	0.3	-	22	-	3.8	-	3