Porous material based on modified carbon and the effect of pore size distribution on the adsorption of methylene blue dye from an aqueous solution

Memetova, A. E.; Tyagi, Inderjeet; Suhas, .; Singh, Pratibha; Mkrtchyan, É. S.; Burakova, I. V.; Burakov, Alexander E.; Memetov, N. R.; Gerasimova, A. V.; Shigabaeva, Gulnara; Galunin, Evgeny; Kumar, Ajay

doi:10.1007/s11356-022-23486-8

Cited by 2 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Boyd model was used to explain the contribution of film resistivity to CR and TFT adsorption kinetics. The Boyd model assumes that the main diffusion resistance lies in the boundary layer surrounding the adsorbent particle [64,65] . The Bt‐t diagram shows a particle diffusion mechanism if it is a straight line through the origin; otherwise, it is a case of film diffusion.…”

Section: Resultsmentioning

confidence: 99%

“…The Boyd model assumes that the main diffusion resistance lies in the boundary layer surrounding the adsorbent particle. [64,65] The Bt-t diagram shows a particle diffusion mechanism if it is a straight line through the origin; otherwise, it is a case of film diffusion. the graphs were found to be almost linear and the graphs did not pass.…”

Section: Chemistryselectmentioning

confidence: 99%

See 1 more Smart Citation

Superior Adsorption Efficiency of MIL‐101 (Cr) and Nano‐MIL‐101 (Cr) in Anionic and Cationic Dye Removal from Aqueous Solution

Söğüt

2023

ChemistrySelect

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) as adsorbent have received considerable attention due to their remarkably high porosity, adjustable pore shape/size, and surface functionality. This study focusses on the adsorption performance and mechanism of two different typological and structural MOFs as superior adsorbents for the efficient removal of anionic and cationic dyes in an aqueous solution. MIL‐101(Cr) and nano‐MIL‐101(Cr) were successfully synthesized by the hydrothermal method using two different protocols and both materials were confirmed by XRD, TG‐DTA‐DTG, FTIR and SEM analyses. The adsorption kinetics and isotherms were determined from the experimental data obtained under optimal conditions. The adsorption kinetics suggests the adsorption process of Congo Red (CR) and Thioflavin T (TFT) onto MIL‐101 (Cr) and nano‐MIL‐101(Cr) conformed to the pseudo‐second‐order kinetic model. The Langmuir isotherm agrees well with the experimental data, and the adsorption capacities for MIL‐101 (Cr) and nano‐MIL‐101 (Cr) were found to be 986 mg g−1 (CR) and 863 mg g−1 (TFT), 1004 mg g−1 (TFT), respectively. The adsorption mechanism is to be related to π–π stacking, hydrogen bonding, pore filling, electrostatic interaction, and partial chemical interaction. This study demonstrates that MIL‐101 (Cr) and nano‐MIL‐101 (Cr) are promising reusable adsorbents with high adsorption capacity for removing dyes from aqueous solutions.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Chemistryselectmentioning

confidence: 99%