Review Article
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 (Fe0) | — | Cr(VI) | — | — | — | 72.97% | — | — | [95] | P. aeruginosa immobilized (Fe0) | — | 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] |
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