Efficiency of Sawdust as Low-Cost Adsorbent for Dyes Removal

Table 1

Examples of dyes and their main chemical characteristics [5, 17].

Dye	Molecular formula	Molecular structure	Class
Reactive black 5	C26H21N5Na4O19S6		Azo dyes
Reactive blue 4	C23H14Cl2N6O8S2		Anthraquinone dyes
Vat blue 35	C16H8Br2N2O2		Indigoid dyes
Malachite green	C23H25ClN2		Triarylmethane dyes
Acid yellow 1	C10H4N2Na2O8S		Nitro dyes
Acid green 1	C30H15FeN3Na3O15S3		Nitroso dyes