From: A critical study on efficiency of different materials for fluoride removal from aqueous media
Adsorbent
AC (mg/g)
CR (mg/L)
pH
Ref.
Neodymium-modified chitosan
22.4
10-100
7.0
[81]
PANi/Ch, PPy/Ch
5.9, 6.7
2-10
[82]
Lanthanum incorporated chitosan beads
4.7
5.34
5.0
[83]
Chitin
3.4
1-100
4.8
[85]
Rice husk ash (RHA) by coating Al(OH)3
9-10
10-60
5
[86]