Adsorption Characteristics and the Kinetics of the Cation Exchange of Rhodamine-6G with Na+-Montmorillonite

Synthesis, characterization and potential application of organobentonite in removing 2,4-DCP from industrial wastewater

“…Since the value of 1/n was less than 1, this suggested that the adsorption of 2,4-DCP on the DK3 was a physical process [24]. The values 1/n between 0.605 and 0.607 indicated favourable adsorption and a high affinity of DK3 for 2,4-DCP since the higher value of 1/n corresponded to greater heterogeneity of the adsorbent surface [25] which resulted from 2,4-DCP interactions with surfactant cations on the clay's surface as well as within the clay interlayer space [6,18]. Therefore, both the Freundlich and Langmuir models suggest that the adsorption capacity increased as the temperature fell, demonstrating that adsorption was exothermic [26] and both models as indicated by R 2 values (Table 2) fit the data well.…”

Potential of aqueous extract of Hibiscus sabdariffa leaves for inhibiting the corrosion of aluminum in alkaline solutions

“…D-RIM was used to distinguish between physical and chemical adsorption for the removal of some pollutants from aqueous solutions by adsorption on various adsorbents [27][28][29][30]. It can be expressed as:…”

Paper-like composites of cellulose acetate–organo-montmorillonite for removal of hazardous anionic dye in water

“…Adsorptive materials are particularly attractive in the removal of the colored, toxic organic compound from wastewater in dye industry [14,15]. Typically, the water containing Acid Scarlet G (ASG), a frequently used dye in industry, is not only harmful to the aquatic organisms and plants, but also is hazardous to human beings.…”