Adsorption study of the surfactant in inorganics matrices

Quimica nova

Pereira, Paulo Henrique Fernandes¹  Silva, Maria Lucia C. P. da¹ 

[1] Universidade de São Paulo, Lorena, Brasil

关键词: Langmuir isotherm;    Freundlich isotherm;    hydrous niobium phosphate.;   

DOI  :  10.1590/S0100-40422009000100002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This work describes the study the adsorption of a cationic surfactant, cetyl trimethyl ammonium bromide (CTAB) in the hydrous niobium phosphate matrix. The matrix was characterized by powder X-ray diffraction (DRX), thermal analysis (TG), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and surface area measurements (BET). The Langmuir and Freundlich isothermal models were used in the CTAB adsorption study. The adsorption process wasn`t favorable for the NbOPO4.nH2O in both studied models.

【 授权许可】

CC BY