Currently, the world faces difficulties related to the quantity and quality of water due to industrial expansion, population growth, and intensification of urbanization. Toxic metals are widely used in various industrial activities and are frequently found in wastewater. The presence of these metals in water resources is related to risks to human health and the environment. Applying unconventional adsorbents, such as starch/microcellulose -based porous biodegradable hydrogels, may be an alternative to increase the adsorption capacity of these metals.This study investigated the use of hydrogels based on corn starch reinforced with microcellulose (MC) prepared from eucalyptus sawdust wastes to remove potentially toxic metals (PTMs), such as copper (Cu2+), zinc (Zn2+), nickel (Ni2+), manganese (Mn2+), cadmium (Cd2+), and hexavalent chromium (Cr6+) from the adsorption process. The MC presented the following metallic affinity order: Cu2+ > Mn6+ > Ni2+ > Zn2+ > Cd2+ > Cr6+. Besides, incorporating MC fibers contributes to increased physicochemical properties with good interaction with corn starch. Cu2+ removal increased with high MC concentration in the starch hydrogel. The adsorption affinity of Cu2+ has followed the order: MC > starch/MC-5% > starch/MC-3% > starch/MC-1% > starch/MC-0%. Thus, starch-containing cellulose microstructures are efficient alternatives to treat contaminated waters.
Bem-vindo(a) aos Anais do VII NanoMat, evento organizado pela Pós-graduação em Nanociências e Materiais Avançados da Universidade Federal do ABC (UFABC) com o intuito de reunir e debater trabalhos desenvolvidos por alunos e pós-doutorandos em Materiais e áreas afins.
Comissão Organizadora
Pedro Alves da Silva Autreto
Andre Luiz Martins de Freitas
Aryane Tofanello
Comissão Científica
Ferramenta completa de submissão, avaliação e publicação de anais para eventos científicos.
