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.

In addition, this review also discuss the stabilization of metallic nanoparticles or metallic oxides in lignocellulosic matrices or their derivatives and their ability to degrade the organic dyes previously adsorbed in the material has attracted considerable scientific attention due to their simplicity, reusability, and high catalytic activity and because they do not generate byproducts that pollute the environment.

对废水处理新技术和生态可持续材料的研究不断增加，吸附技术因其简单和低成本的过程而脱颖而出。本综述讨论了基于木质纤维素生物质 (LB) 的吸附剂，因为它们具有天然的可用性、有吸引力的化学组成（木质素、纤维素和半纤维素）和结构组成（能够捕获水溶液中有机染料分子的各种官能团）。LB 允许精心设计各种高效、可重复使用、经济且环保的木质纤维素材料 (LM)，这些材料可能具有具有竞争力的染料吸附能力。

此外，本综述还讨论了木质纤维素基质或其衍生物中金属纳米粒子或金属氧化物的稳定性，以及它们降解先前吸附在材料中的有机染料的能力，因其简单、可重复使用和高催化活性而引起了相当多的科学关注。并且因为它们不会产生污染环境的副产品。