Table 7.
Products and conditions of textile recycling using hydrothermal methods.
| Feedstock | Reactor | Catalyst | Time, h | Temperature, °C | Major Product | Yield, % | Ref. |
|---|---|---|---|---|---|---|---|
| A blue cotton/polyester, | Batch | Hydrochloric acid | 3 | 150 | Cellulose powder | 49.3 | [205] |
| Waste cotton fabrics | Batch | Hydrochloric acid | 1.6 | 150 | Microcrystalline cellulose | 85.5 | [206] |
| Cotton/synthetic fibers, | Autoclave | NA | 90 | 280 | Volatile compound (CH4, C2H4) | 98.0 | [207] |
| Waste cottons | Hydrothermal reactor | β-cyclodextrin | 3 | 250 | Activated carbon | NA | [208] |
| Cotton textile waste | Tubular | Ferric chloride | 1 | 700 | Nanopowder | 32.6 | [209] |
| Waste cotton woven | Tubular | Ferric chloride | 1.5 | 700 | Activated carbon | NA | [210] |
| Light blue and white uniform with polyester/cotton, | Hydrothermal reactor | Citric acid | 1 | 225 | 5′-hydroxymethylfurfural | 12.5 | [211] |
| Cotton | Semi-batch | Formic acid | 1 | 250 | Glucose | 83.8 | [212] |