Facile Hydrothermal Procedure for the Synthesis of Sodium Aluminum Silicate Hydrate/Analcime and Analcime for Effective Removal of Manganese(II) Ions From Aqueous Solutions

Transformation of Glass Fiber Waste into Mesoporous Zeolite-Like Nanomaterials with Efficient Adsorption of Methylene Blue

“…This was mainly contributed from the capillary condensation in mesoporous structure [42,43], which could benefit and provide a large surface area of the adsorption for dye macromolecules. Hence, the specific surface area increased from 11.2 m 2 g −1 of the original GFW material to 166 m 2 g −1 for MZN after the alkaline activation (Table S5, Supplementary data) higher than the report result of analcime zeolite [44]. Nasser et al [45] fabricated the analcime phase zeolite of aluminum isopropoxide, using the hydrothermal method, by sodium hydroxide and aluminum sources.…”

Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles

“…The optimal temperature, which will be considered for subsequent impacts, is therefore 298 K. The thermodynamic parameters, for example, change in free energy (Δ G o ), change in enthalpy (Δ H o ), and change in the entropy (Δ S o ) were determined using eqn (4) & (5). 21–26 Δ G o = Δ H o − T Δ S o where, T (K), K T (L g −1 ), and R (kJ mol −1 K −1 ) are the temperature, distribution constant, and gas constant, respectively. The distribution constant ( K T ) was determined utilizing eqn (6).…”

“…It was found that % R decreases whereas Q increases with the increase in the initial concentration of Cu( ii ) or Cd( ii ) ions. 21–26 The concentration-related results were studied by two equilibrium isotherms, namely: Langmuir (eqn (7)) and Freundlich (eqn (8)). 21–26 where, Q m (mg g −1 ) is the maximum adsorption capacity of the N 1 and N 2 nanocomposites.…”

“…The adsorption method is familiar as an efficient and simple method for removing and preconcentrating heavy metals from water. [20][21][22][23][24][25][26] The adsorption mechanism is typically dependent on the chemical or physical interaction between the adsorbate and the surface of the adsorbent involving complexation reaction, surface adsorption, cation exchange, and electrostatic attraction. 27 Bandara et al used biochar adsorbent, which was derived from agricultural wastes, to remove Cd(II) and Cu(II) ions from aqueous media.…”

“…Besides, Fig.11A-Bdepicts the plot of the initial concentration of Cd(II) ions versus % R and Q, respectively. It was found that % R decreases whereas Q increases with the increase in the initial concentration of Cu(II) or Cd(II) ions [21][22][23][24][25][26].…”