Synthesis and application of nano-hematite on the removal of carcinogenic textile remazol red dye from aqueous solution
El_Molla, Sahar; Ibrahim, Shaimaa; Mona A.Naghmash;
Abstract
Four nano-hematite adsorbents (α-Fe2O3:Fe-P-T, Fe-W-3w, Fe-W-3d, Fe-A-3) were prepared via
precipitation and/or dispersion–precipitation methods. The prepared adsorbents were characterized
by X-ray diffraction, Fourier transforms infrared, high-resolution transmission electron microscopy
and specific surface area analysis. These newly prepared adsorbents were applied for the removal of
Remazol Red (RB-133) dye from aqueous solutions. Fe-W-3w adsorbent showed superior dye removal
efficiency (100%), which may be attributed to its small crystal size and high surface area. Pseudosecond
order and Langmuir equations describe perfectly the adsorption kinetics and isotherms for the
investigated system. The factors affecting Remazol Red (RB-133) adsorption mechanism are discussed.
precipitation and/or dispersion–precipitation methods. The prepared adsorbents were characterized
by X-ray diffraction, Fourier transforms infrared, high-resolution transmission electron microscopy
and specific surface area analysis. These newly prepared adsorbents were applied for the removal of
Remazol Red (RB-133) dye from aqueous solutions. Fe-W-3w adsorbent showed superior dye removal
efficiency (100%), which may be attributed to its small crystal size and high surface area. Pseudosecond
order and Langmuir equations describe perfectly the adsorption kinetics and isotherms for the
investigated system. The factors affecting Remazol Red (RB-133) adsorption mechanism are discussed.
Other data
| Title | Synthesis and application of nano-hematite on the removal of carcinogenic textile remazol red dye from aqueous solution | Authors | El_Molla, Sahar ; Ibrahim, Shaimaa ; Mona A.Naghmash | Keywords | Nano-hematite;Remazol Red (RB-133);Adsorption;Dispersion–precipitation method | Issue Date | 22-Mar-2020 | Publisher | DESALINATION PUBL | Journal | Desalination and Water Treatment | Volume | 180 | Start page | 370 | End page | 386 | ISSN | 19443994 | DOI | doi: 10.5004/dwt.2020.25063 | Scopus ID | 2-s2.0-85098757669 | Web of science ID | WOS:000545003000039 |
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