Utilization of Sn/Nb2O5 composite for the removal of methylene blue

Quimica nova

Oliveira, Luiz Carlos Alves¹  Cantão, Fabiane de Oliveira¹  Melo, Walclée de Carvalho¹  Silva, Adilson Cândido da¹  Passos, Aline Ribeiro¹ 

[1] Universidade Federal de Lavras, Lavras, Brasil

关键词: niobium oxide;    tin;    organic dye.;   

DOI  :  10.1590/S0100-40422010000300007

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this work, theoxidation of methylene blue textile dye in the presence of hydrogen peroxide,using niobium oxide impregnated with different proportions of tin (1, 5 and10% in mass) as catalyst was studied. The materials were characterized by TPR,XPS, XRD and FTIR. The oxidation tests monitored by ESI-MS showed that the compositecontaining the higher amount of tin was the most efficient in the removal ofthe dye. The XRD, XPS, and TPR data presented evidence of the formation of thetin-niobium oxide composite containing Sn0 and supported SnO2.

【 授权许可】

CC BY