Table 11 Adsorption capacities (AC) and other parameters for the removal of fluoride by Apatite and hydroxyapatite
From: A critical study on efficiency of different materials for fluoride removal from aqueous media
Adsorbent | AC (mg/g) | AD (g/L) | CR (mg/L) | pH | Ref. |
|---|---|---|---|---|---|
Synthetic nano hydroxyapatite | 4.575 | 4 | 3-80 | 5-6 | [113] |
Biogenic apatite | 4.99 | Â | Â | Â | Â |
Treated biogenic apatite | 6.849 | Â | Â | Â | Â |
Geogenic apatite | 0.014 | Â | Â | Â | Â |
Hydroxyapatite | 1.432 | 20 | 3-80 | 5 | [114] |
Nano sized hydroxyapatite | 3.44 | 0.2 | 50 | 5 | [116] |
Cellulose@hydroxyapatite nanocomposites | 4.2 | 4 | 10 | 6.5 | [117] |
Al-modified hydroxyapatite (Al-HAP) | 32.57 | 0.5 | 5-50 | 7 | [118] |
nHAp derived from PG | 19.74-40.81 | 1 | 10-50 | 2-11 | [119] |