Removal of Basic Blue 3 by sorption onto a weak acid acrylic resin

Abstract

A weak acid acrylic resin was used as an adsorbent for the investigation of Basic Blue 3 (BB3) adsorption kinetics, isotherms, and thermodynamic parameters. Batch adsorption studies were carried out to evaluate the effect of pH, contact time, initial concentration (28-100 mg/ g), adsorbent dose (0.05-0.3 g), and temperature (290-323 K) on the removal of BB3. The adsorption equilibrium data were analyzed by the Langmuir, Temkin, and Freundlich isotherm models, with the best fitting being the first one. The adsorption capacity (Q o ) increased with increasing initial dye concentration, adsorbent dose, and temperature; the highest maximum Q o (59.53 mg/g) was obtained at 323 K. Pseudo-first-order and pseudo-second-order kinetic models and intraparticle diffusion models were used to analyze the kinetic data; good agreement between the experimental and calculated amounts of dye adsorbed at equilibrium were obtained for the pseudo-second-order kinetic models for the entire investigated concentrations domain. Various thermodynamic parameters, such as standard enthalpy of adsorption (DH o ¼ 88.817 kJ/mol), standard entropy of adsorption (DS o ¼ 0.307 kJ mol À1 K À1 ), and Gibbs free energy (DG o < 0, for all temperatures investigated), were evaluated and revealed that the adsorption process was endothermic and favorable.

Synthesis of monolith silica anchored graphene oxide composite with enhanced adsorption capacities for carbofuran and imidacloprid

“… Adsorbent Adsorbate Adsorbate (ppm) Adsorbent (mg) Adsorption capacity (mg-g −1 ) References Chitosan-based Basic blue 3 dye 20 40 166.5 65 Durian husk Basic blue 3 50 100 49.5 66 Coconut charcoal Monocrotophos (pesticide) 10 200 103.9 67 Ac. carbon of hyacinth Glyphosate (pesticide) 100 3 240.8 68 Chitin Atrazine 20 20 113.23 69 Acrylic resin Basic blue 3 100 50 46.95 70 Peat Basic dyes 200 4 41.00 71 Silica anchored GO Imidacloprid 30 4 342.46 Current study Silica anchored GO Carbofuran 10 ...…”

Iron-Impregnated Weakly Basic Resin for the Removal of 2-Naphthalenesulfonic Acid from Aqueous Solution

“…To describe the thermodynamic behavior of adsorption of 2-NSA onto Fe-D301, the thermodynamic parameters free energy, Δ G 0 , enthalpy change, Δ H 0 , and entropy change, Δ S 0 , were calculated for the adsorption process using the following equations: normalΔ italicG 0 = normalΔ H 0 − T normalΔ S 0 ln ( q e C e ) = normalΔ S 0 R − normalΔ H 0 R T where q e / C e is the adsorption affinity and is a ratio of q e to C e . The values of Δ H 0 and Δ S 0 were determined from the slope and the intercept of the plots of ln( q e / C e ) versus 1/ T (Figure ).…”

Environmental Bioremediation: A Low Cost Nature’s Natural Biotechnology for Environmental Clean-up

“…Greluk and Hubicki recommended the adsorption/ion exchange as an alternative method for the removal of reactive dyes. The applicability of ion exchange resin containing acrylic matrix for removing other classes of dyes were well documented by Bayramoglu et al [30], Dulman et al [31], Wawrzkiewicz and Hubicki [32] and Barsanescu et al [33]. Thus Acrylic anion exchangers is more advantage than styrenics by exhibiting high efficiency of anion exchange capacities and polluting less.…”