Facile synthesis of magnetic and porous zeolite/SnFe2O4 nanocomposite for cationic and anionic dyes deterioration

Aboelfetoh, Eman F.; El‐Attar, Heba G.; Okba, Ehab A.

doi:10.1016/j.micromeso.2023.112611

Cited by 7 publications

(1 citation statement)

References 31 publications

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“…Adsorption is commonly used to remove organic pollutants and dyes from wastewater. Although there are many methods for treating wastewater, including oxidation, flocculation, coagulation, membrane filtration, chemical precipitation, ion exchange, and biological treatment 4 – 7 , adsorption is widely regarded as a straightforward, low-cost, risk-free, and effective method for removing dyes. Bentonite 8 , clay minerals 9 and agricultural waste-based adsorbents 10 are only a few of the adsorbents that have been used for dye removal from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Design of silver-zinc-nickel spinel-ferrite mesoporous silica as a powerful and simply separable adsorbent for some textile dye removal

Okba,

Rabea,

El-Sheikh

et al. 2024

Sci Rep

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Silver-zinc-nickel spinel ferrite was prepared by the co-precipitation procedure with the precise composition Ag0.1Zn0.4Ni0.5Fe2O4 for bolstering pollutant removal effectiveness while upholding magnetic properties and then coated with a mesoporous silica layer. The surface characteristics and composition of Ag0.1Zn0.4Ni0.5Fe2O4@mSiO2 were confirmed using EDX, FT-IR, VSM, XRD, TEM, SEM, and BET methods. The surface modification of Ag-Zn-Ni ferrite with a silica layer improves the texture properties, where the specific surface area and average pore size of the spinel ferrite rose to 180 m2/g and 3.15 nm, respectively. The prepared spinel ferrite@mSiO2 has been utilized as an efficient adsorbent for eliminating methyl green (MG) and indigo carmine (IC) as models of cationic and anionic dyes from wastewater, respectively. Studying pH, Pzc, adsorbent dosage, dye concentration, and temperature showed that efficient removal of MG was carried out in alkaline media (pH = 12), while the acid medium (pH = 2) was effective for IC removal. Langmuir isotherm and pseudo-second-order kinetics were found to be good fits for the adsorption data. Both dyes were adsorbed in a spontaneous, endothermic process. A possible mechanism for dye removal has been proposed. The adsorbent was effectively recovered and reused.

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