Adsorption and intercalation of anionic surfactants onto layered double hydroxides�?�XRD study

Bulletin of materials science

W D Lee²  S S Im²  R Anbarasan¹ 

[1] Department of Polymer Technology, Kamaraj College of Engineering and Technology, Virudhunagar 626 001, India$$Department of Polymer Technology, Kamaraj College of Engineering and Technology, Virudhunagar 626 001, IndiaDepartment of Polymer Technology, Kamaraj College of Engineering and Technology, Virudhunagar 626 001, India$$;Department of Fibre and Polymer Engineering, Hanyang University, Seoul, South Korea$$Department of Fibre and Polymer Engineering, Hanyang University, Seoul, South KoreaDepartment of Fibre and Polymer Engineering, Hanyang University, Seoul, South Korea$$

关键词: LDH;    ion-exchange;    anionic surfactants;    XRD;    FTIR spectroscopy;    TGA.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Layered double hydroxides (LDH) with brucite like structure was modified with various anionic surfactants containing sulfonate, carboxyl, phosphonate and sulfate end group through ion-exchange method. XRD reports indicated that the sulfonate group containing surfactants led to an adsorption process whereas the sulfate, carboxyl and phosphonate group containing surfactant led to an intercalation process. This can be evidenced from the change in basal spacing of LDH. The presence of anionic surfactants in the LDH was supported by FTIR spectroscopy. The FTIR spectrum indicated that complete removal of carbonate anion from the inter layer space of LDH is very difficult. The phosphonate intercalated HT showed less thermal stability than pristine LDH.

【 授权许可】

Unknown