Preparation of Copper Nanoparticles/Diatomite Nanocomposite for Improvement in Water Quality of Fishponds

Table 2

The antibacterial activity of CuNP/DA against A. hydrophila and Ed. ictaluri.

	0 h	3 h	24 h
Aeromonas hydrophila (CFU/ml)
Control	3,0 × 10^3	3,5 × 10^3	4,5 × 10^8
DA	3,0 × 10^3	3,3 × 10^3	4,1 × 10^8
CuNPs/DA1	3,0 × 10^3	ND	ND
CuNPs/DA2	3,0 × 10^3	ND	ND
Edwardsiella ictaluri (CFU/ml)
Control	2,7 × 10^3	3,0 × 10^3	3,3 × 10^7
DA	2,7 × 10^3	2,7 × 10^3	3,0 × 10^7
CuNPs/DA1	2,7 × 10^3	ND	ND
CuNPs/DA2	2,7 × 10^3	ND	ND

Note. CuNPs/DA1 and CuNPs/DA2, nanocomposite of CuNPs/DA with 1 and 2% APTES binder, respectively. ND, not detected.