Environmentally stable adsorbent of tetrahedral silica and non-tetrahedral alumina for removal and recovery of malachite green dye from aqueous solution

Malachite green “a cationic dye” and its removal from aqueous solution by adsorption

“…Cationic and nonionic surfactants adsorb on silica surface involving hydrogen bonding (Parida et al 2006). Kannan et al (2008) utilized tetrahedral silica for the adsorption of MG. The adsorbent was characterized by Fourier transformed infrared spectroscopy (FT-IR) to confirm the tetrahedral framework of silica.…”

Dye Waste Treatment

“…From the results obtained, the equilibrium data was well represented by Langmuir and Freundlich isotherms as well as a pseudo-second-order kinetic model. The experiment on the removal and recovery of Malachite Green dye from aqueous solution using environmentally stable adsorbent of tetrahedral silica and non-tetrahedral alumina was attempted [52]. Fourier transform-infrared spectroscopy (FT-IR) was used to determine the tetrahedral framework of silica and non-tetrahedral framework of alumina.…”

Adsorption kinetics and thermodynamics of azo-dye Orange II onto highly porous titania aerogel

“…The physical adsorption process at solid-liquid interface is known to be a powerful method for decreasing the concentration of soluble dyes in effluents and has the advantage of being efficient and economic. A large number of adsorbing materials for soluble dyes have been studied such as activated carbon [12], alumina [13], clay [14], silica xerogel [15], titania [16], titania-silica mesoporous materials [17], waste materials [18][19][20] and many other materials. In this study we investigate for the first time the adsorption kinetics and thermodynamics of dyes from aqueous solutions onto highly porous titania aerogels.…”