Table 2.

XPS-derived elemental contents (wt%) of the AHC.

Sample Names	C1s	N1s	S2p	O1s	B1s
AHC-CL-AS	72.60	2.54	0.72	24.14
AHC-CL-TU	68.91	3.2	3.73	24.16
AHC-CL-AS-BA	68.98	3.33	4.10	23.19	0.39
AHC-CL-TU-BA	70.49	4.33	0.93	23.44	0.80