Table 1.
Examples of functionalized porous cellulose absorbents for oil-water treatment.
| Cellulose Source | Modification Type | Absorbed Substance | Absorption Capacity, g/g | Cycles | Contact Angle | Reference |
|---|---|---|---|---|---|---|
| Coir fibers | Trimethylchlorosilane, Hexamethyldisilazane | Lubricant oil | 10 | N/A | 148°, 140° | [195] |
| Mango wood scraps | CNF; CNF/PVA composite aerogel, esterification with stearic acid chloride | Various oils, organic solvents | 58–65 35–95 |
15 | 159° | [190] |
| Bark of Abutilon theophrasti | CNF, Chitin, Cationic guar gums; Methyltrichlorosilane | Corn oil, organic solvents |
6.8 9.4–21.9 |
>10 | 155° | [199] |
| Sisal leaves | In-situ Cu nanoparticles | Various oils, organic solvents |
92–100 67.8–164.5 |
>10 | 150.3° | [191] |
| Cotton cellulose | Esterification with octanoyl chloride; crosslinking with hexamethylene-diisocyanate | Various oils, organic solvents | 49.9–55.8, 40.8–48.7 | N/A | 138.7° | [192] |
| Hardwood cellulose pulp | 1,4-butanediol diglycidyl ether, epoxidized soybean oil | Crude oil, Engine oil, Pump oil | 37, 30, 28 | 30 | 132.6° | [193] |
| Canola straw | Hexadecyltrimethoxysilane | Motor oil, Sunflower oil | 79, 162 | 20 | 139° | [198] |
| Paper waste; cotton fibers | Methyltrimethoxysilane | Various oils, organic solvents | 68–78, 40–94 |
5 | 142.8° | [197] |
| Pinus elliottii | Methyltrimethoxysilane | Petroleum | 68.4 | N/A | 119.85° | [196] |