Table 2.
A comparison between the catalytic degradation efficiency of the optimized rGO and literature reported for methylene blue (MB)
| Catalyst | Dye concentration (mg L−1) | Degradation efficiency (%) | Time (min) | Ref. |
|---|---|---|---|---|
| nZVI- Fe3O4/rGO. | 50 | 98.00 | 60 | (Yang et al. 2015) |
| Mn/rGO nanocomposite | 50 | 70.40 | 30 | (Liu et al. 2018) |
| Mn-Co/rGO nanocomposite | ≃100 | |||
| rGO-stabilized MnO/N-doped carbon nanofibers | 20 | 100 | 180 | (Chen et al. 2017) |
| rGO/CoFe2O4 | 20 | 100 | 24 | (Wu et al. 2016) |
| (rGO-Ag) nanocomposite | – | 71.42 | 8 | (Sahu et al. 2019) |
| MoS2 | 200 | 98 | 30 | (Zou et al. 2019) |
| (MoS2-rGO) nanocomposite | 10 | |||
| rGO/Fe3O4 nanocomposite | 30 | 47.47 | 60 | (Vinothkannan et al. 2015) |
| Graphene/MnO2 hybrids | 50 | ≃100 | 5 | (Qu et al. 2014) |
| CoTPP/rGO/MWCNTs nanocomposite | 5 | 50.00 | 70 | (Kiran et al. 2020) |
| rGO-SiW nanocomposite | 35 | ≃100 | 34 | (Ucar et al. 2017) |
| rGO | 5 | ≃100 | Instantaneously | The current work |
| 10 | 73.55 | |||
| 15 | 65.10 |