Abstract

The search for new technologies and eco-sustainable materials for wastewater treatment has been increasing, and adsorption technology stands out because of its simple and low-cost process. This review discuss adsorbents based on lignocellulosic biomass (LB) because of their availability in nature, attractive chemical composition (lignin, cellulose and hemicellulose) and structural composition (various functional groups capable of capturing molecules of organic dyes in aqueous solution). LB allows for the elaboration of a diverse range of efficient, reusable, economical and environmentally friendly lignocellulosic materials (LM) that may present competitive dye adsorption abilities.