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- W3138187859 abstract "The present investigation involves synthesis and characterization of MCM-41-AEAPTMS-Fe(iii)Cl using coordinated Fe(iii) on MCM-41-AEAPTMS for efficient removal of hazardous Cr(vi) ions from aqueous solution. The adsorbent MCM-41-AEAPTMS-Fe(iii)Cl was characterized using small-angle X-ray diffraction (SAX), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier-transform infrared (FT-IR) and Brunauer-Emmett-Teller (BET) surface analyzer techniques. The BET surface area was found to be 87.598 m2 g-1. The MCM-41-AEAPTMS-Fe(iii)Cl effectively adsorbs Cr(vi) with an adsorption capacity acquiring the maximum value of 84.9 mg g-1 at pH 3 at 298 K. The data followed pseudo-second-order kinetics and obeyed the Langmuir isotherm model. The thermodynamic data proved the exothermic and spontaneous nature of Cr(vi) ion adsorption on MCM-41-AEAPTMS-Fe(iii). Further, the higher value of ΔH° (-64.339 kJ mol-1) indicated that the adsorption was chemisorption in nature." @default.
- W3138187859 created "2021-03-29" @default.
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- W3138187859 date "2021-01-01" @default.
- W3138187859 modified "2023-09-27" @default.
- W3138187859 title "Efficient removal of chromate ions from aqueous solution using a highly cost-effective ferric coordinated [3-(2-aminoethylamino)propyl]trimethoxysilane–MCM-41 adsorbent" @default.
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- W3138187859 doi "https://doi.org/10.1039/d0ra07425j" @default.
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