Efficiency of Sawdust as Low-Cost Adsorbent for Dyes Removal

Table 7

Various kinetic and isotherm studies for dye adsorption by various sawdust.

Sawdust	Dye	Kinetic model	Isotherm model	Reference
Pine sawdust	Malachite green	Pseudo-second-order	Langmuir	[74]
Rattan sawdust	Methylene blue	Pseudo-second order	Langmuir	[76]
Wood sawdust	Basic blue 69	Pseudo-second-order	Langmuir	[89]
Wood sawdust	Acid blue 25	Pseudo-second-order	Langmuir	[89]
Neem sawdust	Crystal violet	Pseudo-first-order	Langmuir	[90]
Neem sawdust	Malachite green	Pseudo-first-order	Langmuir	[90]
Bamboo sawdust	Methylene blue	Pseudo-first-order	Langmuir	[91]
Mahogany sawdust	Acid yellow 36	Pseudo-first-order	Freundlich and Langmuir	[93]
Mahogany sawdust	Direct blue 2B	Pseudo-second-order	Langmuir	[72]
Mahogany sawdust	Direct green B	Pseudo-second-order	Langmuir	[72]
Raw beech sawdust	Methylene blue	Pseudo-first-order	Freundlich	[94]
Beech sawdust	Methylene blue	Pseudo-first-order	Freundlich	[94]
Beech sawdust	Red basic 22	Pseudo-first-order	Freundlich	[94]
Cedar sawdust	Methylene blue	Pseudo-second-order	Langmuir	[97]
Walnut sawdust	Methylene blue	Pseudo-second-order	Langmuir	[88]
Walnut sawdust	Acid blue 25	Pseudo-second-order	Langmuir	[88]
Cherry sawdust	Methylene blue	Pseudo-second-order	Langmuir	[88]
Cherry sawdust	Acid blue 25	Pseudo-second-order	Langmuir	[88]
Oak sawdust	Methylene blue	Pseudo-second-order	Langmuir	[88]
Oak sawdust	Acid blue 25	Pseudo-second-order	Langmuir	[88]
Pitch-pine sawdust	Methylene blue	Pseudo-second-order	Langmuir	[88]
Pitch-pine sawdust	Acid blue 25	Pseudo-second-order	Langmuir	[88]
Beech wood sawdust	Direct orange 26	Pseudo-first-order	Langmuir	[98]
Beech wood sawdust	Acid green 20	Pseudo-first-order	Langmuir	[98]
Beech wood sawdust	Acid orange 7	Pseudo-first-order	Langmuir	[98]
Crude sawdust	Methylene blue	Pseudo-first-order	Langmuir	[99]
Functionalized sawdust	Methylene blue	Pseudo-first-order	Langmuir	[99]
Meranti sawdust	Methylene blue	Pseudo-second-order	Langmuir	[100]
Beech wood sawdust	Basic blue 86	Pseudo-second-order	Langmuir	[102]
Beech wood sawdust	Direct brown	Pseudo-second-order	Langmuir	[102]
Beech wood sawdust	Direct brown 2	Pseudo-second-order	Langmuir	[102]
Eucalyptus wood sawdust	Congo red	Pseudo-second-order	Redlich and Peterson (R-P)	[105]
Modified pine sawdust	Methylene blue	Elovich model	Langmuir	[106]
Fugas sawdust	Maxilon blue dye	—	Langmuir	[107]
Rattan sawdust	Methylene blue	Pseudo-second-order	Langmuir	[108]
Bamboo sawdust	Congo red	Pseudo-second-order	Freundlich	[109]
Acacia nilotica sawdust	Crystal violet	Pseudo-second-order	Redlich and Peterson (R-P)	[110]