Table 2 Comparison of adsorption capacity of the biosynthetic ZnP-nanosheets against various adsorbent
Dye | Adsorbent | qm (mg/g) | Isotherm | Kinetic | Reuse | Reference |
|---|---|---|---|---|---|---|
A. Cationic dye | ||||||
MB | Zinc phospahate nanosheets | 178.25 | L | PSO |  +  | Current study |
Fe2O3/SiO2 nanocomposite | 116.09 | L | PSO |  +  | Chen et al. 2016 [47] | |
Co3O4/SiO2 nanocomposite | 53.87 | L | PSO |  +  | Abdel Ghafar et al. 2015 [51] | |
Phosphoric acid based geopolymers | 4.2 | L | PSO |  +  | Khan et al. 2015 [50] | |
B. Anionic dye | ||||||
|  | Zinc phospahate nanosheets | 50.1 | L | PSO |  +  | Current study |
MO | TiO2 nanocomposite | 42.85 | L | PSO |  +  | Ahmad et al. 2017 [52] |
Ferric oxide–biochar nano-composites | 20.53 | L | PSO |  +  | Chaukura et al. 2017 [53] | |
iron oxide/carbon nanocomposites | 32.63 | L | PSO |  +  | Istratie et al. 2019 [54] | |