Study of Modern Nano Enhanced Techniques for Removal of Dyes and Metals

Table 2

Bio-nanocatalysts to remove heavy metals and organic contaminants.

Bionanocatalysts	Organic compounds	Heavy metals	Initial concentration of bionanocatalysts (ppm/mg L^−)	Initial concentration of heavy metals (mg l^−)	Maximum reduction (%)		Time for maximum reduction (min/h)		References
					O.C.	Heavy metals	O.C.	Heavy metals
[Bio-Pd(0) NMs] Pd(0) precipitated on C. pasteurianum	Methyl orange (MO)	—	10 ppm	—	100%	—	7 min	—	[29]
Pd(0) precipitated on C. pasteurianum	Evan’s blue (EB)	—	5 ppm	—	100%	—	7 min	—	[29]
Bio-Pd(0) NMs	PCBs	—	50 mg L^−	—	27%	—	—	—	[92]
P. aeruginosa immobilized (Fe^0)	—	Cr(VI)	—	—	—	72.97%	—	—	[95]
P. aeruginosa immobilized (Fe^0)	—	Cd(II)	—	—	—	87.63%	—	—	[92]
S. cerevisiae immobilized on chitosan-coated magnetic nanoparticles	—	Cu(II)	—	60 mg L^−	—	96.8%	—	1 h	[95]
P. aeruginosaimmobilized on multiwalled carbon nanotubes	—	Cr(VI)	—	80 mg L^−	—	50%	—	84 h	[95]