PREPARAÇÃO E CARACTERIZAÇÃO DE MEMBRANAS DE CELULOSE REGENERADA A PARTIR DA CELULOSE EXTRAÍDA DE RESÍDUOS AGROINDUSTRIAIS PARA APLICAÇÃO EM PROCESSOS DE SEPARAÇÃO

Química Nova

Edmar Eustáquio De Souza¹  Rayane Da Silva Vale¹  Júlia Graciele Vieira¹  Sabrina Dias Ribeiro¹  Guimes Rodrigues Filho¹  Fabiana Aparecida Marques¹  Rosana Maria Nascimento De Assunção¹  Carla Da Silva Meireles¹  Hernane Da Silva Barud¹ 

关键词: regenerated cellulose;    agroindustrial residues;    separation process;    membranes;   

DOI  :  10.5935/0100-4042.20140299

来源: SciELO

【 摘 要 】

The aim of this study was to produce membranes using the adapted cuprammonium method. The cellulose utilized was obtained from recycled agroindustrial residues: sugarcane bagasse, corn stover and soybean hulls. The levels of Cu (II) ions in regenerated cellulose membranes produced with cellulose from bagasse, corn stover and soybean hulls were 0.0236 wt%, 0.0255 wt% and 0.0268 wt%, respectively. These levels were approximately 15 times lower than those observed in previous studies (0.3634 wt%). Cellular viability data show that membranes produced from bagasse cellulose do not present toxicity to the cellular cultures studied. These results demonstrate an evolution in production of regenerated cellulose membranes from agroindustrial residues mainly due to a decrease in the Cu (II) ions level, showing the possibility of application of these systems with improved membranes processing.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License