Research Article
MnOx-Coffea arabica Husk and Catha edulis Leftover Biochar Nanocomposites for Removal of Methylene Blue from Wastewater
Table 4
Comparison of the MB removal efficiency of some adsorbents from aqueous solution.
| | Adsorbent | (mg·L−1) | (mL) | m (g) | (mg·g−1) | %R | Reference |
| | Fe3O4/SDB nanocomposite | 30.00 | 30.00 | 0.25 | 25.33 | 75.00 | [3] | | H3PO4-treated Beli biochar | 10.00 | 50.00 | 0.30 | 12.32 | 90.00 | [10] | | Torrefied-Acacia nilotica biochar | 50.00 | 50.00 | 2.00 | 158.30 | ND | [10] | | Acacia nilotica biochar | 50.00 | 50.00 | 2.00 | 85.68 | ND | [10] | | Fe3O4@C core-shell comp | 20.00 | 40.00 | 0.20 | 42.11 | ND | [19] | | NaOH-treated banana stem | 25.00 | 50.00 | 0.80 | 0.47 | 96.59 | [58] | | NaOH-treated coffee husk | 37.78 | 50.00 | 0.74 | 200.00 | 93.52 | [65] | | Fe3O4 nanopowder | 20.00 | 25.00 | 2.00 | 25.54 | 99.69 | [66] | | Wheat straw-biochar | 100.00 | 10.00 | 0.60 | 12.03 | ND | [67] | | KOH-activated CHBC | 50.00 | 500.00 | 0.50 | 357.38 | ND | [68] | | MnOx-CHBNC | 20.00 | 20.00 | 0.20 | 39.52 | 99.26 | This study | | MnOx-KLBNC | 20.00 | 20.00 | 0.15 | 43.47 | 98.20 | This study |
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