Acid Blue 25 adsorption on base treated Shorea dasyphylla sawdust: Kinetic, isotherm, thermodynamic and spectroscopic analysis

Separation of acid blue 25 from aqueous solution using water lettuce and agro-wastes by batch adsorption studies

“…The q m of the WL, TP and CP are 24.5, 10.5, 21.2 mg g −1 , respectively, which are of similar levels with other adsorbents that were reported in the literature: diatomite (21.4) (Badii et al 2010) and wood dust (24.4 mg g −1 ) (Hanafiah et al 2012), but lower than soya bean waste (38.5 mg g −1 ) (Dahri et al 2016) and water fern (50.5 mg g −1 ) (Dahri et al 2016).…”

The adsorption of basic dye (Alizarin red S) from aqueous solution onto activated carbon/γ-Fe2O3 nano-composite: Kinetic and equilibrium studies

“…11, and the equilibrium adsorption data were analyzed by the wellknown Langmuir and Freundlich isotherm models. The Langmuir isotherm assumes that monolayer adsorption occur at binding sites with homogenous energy levels, no interactions between adsorbed molecules and no transmigration of adsorbed molecules on the adsorption surface [39]. The Langmuir equations can be expressed as: where C e is the equilibrium concentration of the ARS solution (mg L À 1 ), q e is the adsorption capacity at equilibrium (mg g À 1 ), k l is the constant related to free energy of adsorption (L mg À 1 ), and q m is the maximum adsorption capacity at monolayer coverage (mg g À 1 ).…”

Adsorption of Eriochrome Black T (EBT) dye using activated carbon prepared from waste rice hulls—Optimization, isotherm and kinetic studies

“…The Langmuir isotherm assumes that monolayer adsorption occur at binding sites with homogenous energy levels, no interactions between adsorbed molecules and no transmigration of adsorbed molecules on the adsorption surface [55]. The Langmuir equation is given as Eq.…”