Effects of cationic and anionic surfactants on the adsorption of toluidine blue onto fly ash

The adsorption kinetics and removal of cationic dye, Toluidine Blue O, from aqueous solution with Turkish zeolite

“…Therefore, a clinoptilolite particle size of <45 m was employed for other experiments. [23], and approximately similar to another report [28].…”

“…Activated carbon is the most popular adsorbent and widely used [2,3]; on the other hand, due to its expensive cost and necessity of regeneration, many new approaches have been developed. In the recent years, for the removal of different type of substances from wastewaters, several materials have been evaluated as adsorbents like silicagel [4], clay [5], perlite [6][7][8][9], zeolite [10][11][12][13][14][15][16][17][18], hydroxyapatite [19], fly ash [20][21][22][23], unburned carbon [24,25], coir pith carbon [26,27], pulp fibers [28], shale oil ash [29], silkworm pupa [30], etc. * Corresponding author.…”

Optimization of process parameters for acrylonitrile removal by a low-cost adsorbent using Box–Behnken design

“…After the first degree of saturation of the surface, further adsorption takes place on new surface only. This kind of two-step isotherm is well explained by Giles [30] and other investigators [31][32][33]. Such twostep isotherms are well represented by Langmuir isotherm equation for each step separately.…”

Amphiphilic invertible polymers for adsolubilization on hydrophilic and hydrophobized silica nanoparticles

“…Adsolubilization characteristics have been reviewed previously [17] as a function of the chemical structure of surfactants used as an adsorbate [6,18,19], a nature of substrate [20,21], a type of solute [7,18,22,23], temperature [24,25], and pH [8,22,26].…”