Activated Carbon-Fly Ash-Nanometal Oxide Composite Materials: Preparation, Characterization, and Tributyltin Removal Efficiency

Table 1

BET result of activated carbon-fly ash-nano metal oxide composite materials.

Samples	BET surface area	Micropore volume	Micropore area	External surface area	Average pore diameter
	m²/g	cm³/g	m²/g	m²/g	Å
Ac	1156 ± 8.69	0.182	442.75	713.89	48.89
Fly ash	1.06 ± 0.003	0.0001	0.38	0.68	89.43
nFe3O4	37 ± 0.19	0.002	3.98	33.19	217.42
nSiO2	217 ± 1.76	0.006	16.13	201.49	88.08
nZnO	14 ± 0.039	0.001	3.18	11.23	98.50
Ac-fly ash	5.3 ± 0.027	0.00002	0.19	5.11	210.01
Ac-fly ash-nFe3O4	299 ± 1.09	0.048	118.89	180.86	63.55
Ac-fly ash-nSiO2	352 ± 1.013	0.063	154.21	198.41	64.78
Ac-fly ash-nZnO	240 ± 1.15	0.033	82.17	158.64	51.84

Ac: Activated carbon.