Table 6.
Comparison of the adsorption of organic dyes with other adsorbent materials.
| Ref. | qe (mg g−1) |
Contact Time (min) | pH | Organic Dyes | Adsorptions |
|---|---|---|---|---|---|
| [66] | 116.29 | 4 | Ay 199 | ZnO-NPs-AC | |
| [19] | 66.66 | 120 | 9 | methylene blue | AC–ZnO |
| [67] | 9.7 | 180 | 7 | indigo carmine | Charcoal from rice bran |
| [68] | 30 | 1200 | - | indigo carmine | Charcoal from extracted residue of coffee beans |
| [69] | 55.25 | 5 | 4 | Titan yellow | Aloe vera |
| [70] | 312.5 | 60–120 | 7.5 | methylene blue | Arthrospira platensis biomass |
| [71] | 2.13 | 480 | 4.9 | tartrazine | Cellulose extracted from wheat residue |
| Current study | 59.88 | 60–120 | 2 | Ismate violet 2R (IV2R) | Green ZnO-NPs (prepared from red seaweed (Pterocladia Capillacea)) |