Enhanced &amp; effective phosphate recovery from water by indium fumarate &amp; zirconium fumarate metal-organic frameworks: Synthesis, characterization, adsorption, kinetic and isotherm studies

Özçelik, Gülsüm; Çavuşoğlu, Ferda Civan; Özkara-Aydınoğlu, Şeyma; Bayazit, Şahika Sena

doi:10.1016/j.surfin.2021.101719

Cited by 5 publications

(2 citation statements)

References 53 publications

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“…The peaks at 1652 and 1210 cm –1 refer to strong CO and C–O stretching vibrations, respectively. The bend around 1566 cm –1 refers to either resembling the N–H bending of amine or strong N–O stretching of the nitro compound . The presence of alkane in the material reflects the medium C–H bending at 1390, 983, and 796 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

Cerium-Based Nanoporous Metal–Organic Frameworks Incorporated with Different Metals for the Remediation of Fluoride Ions from Water

Sikha,

Mandal

2024

ACS Appl. Nano Mater.

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The adsorption capacity (AC) of the material can be significantly enhanced by the composite synergy between various metals, which in turn modifies the morphology, structure, and functional groups of the material. In this view, the nanoporous bimetal metal−organic frameworks (MOFs) using metals (Ce, Fe, Al, and La), namely, Ce@Fe1:1, Ce@Al1:1, and Ce@La1:1, were synthesized via a one-pot method. The nanoporous bimetal MOFs applied to remove F − ions from drinking water followed the order of Ce@Fe1:1 > Ce@Al1:1 > Ce@La1:1. Based on the above findings, Ce@Fe1:1 was further synthesized using cerium and iron at different molar ratios to optimize the best possible compositions, namely, Ce-Fu, Ce@Fe2:1, Ce@Fe1:1, Ce@Fe1:2, and Fe-Fu. These nanoporous bimetal MOF composites were applied to remediate the F − ion from wastewater and Ce@Fe1:1 exhibited the maximum AC of 84.4 mg g −1 at 288 K. It is worth mentioning that the utilization of ultrasonication as a mediator for the adsorption study over the conventional method gives excellent relaxation in time as it enhances the reaction kinetics. As a result, the study demonstrated rapid adsorption kinetics, which follows the pseudosecond-order (PSO) model. Moreover, coexisting ions such as NO 3 − , Cl − , HCO 3 − , and SO 4 2− had less effect on the adsorption of fluoride. The adsorption mechanism of Ce@Fe1:1 bimetal MOFs supports the electrostatic attraction and ligand exchange processes, which were confirmed using characterization instruments, such as X-ray photoelectron spectroscopy (XPS) and zeta potential.

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Section: Resultsmentioning

confidence: 99%

Cerium-Based Nanoporous Metal–Organic Frameworks Incorporated with Different Metals for the Remediation of Fluoride Ions from Water

Sikha,

Mandal

2024

ACS Appl. Nano Mater.

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“…The Temkin isotherm reflects the distribution of the binding energies during the adsorption process. The Sips model is a hybrid model that incorporates characteristics of both the Langmuir and Freundlich models [67].…”

Section: Adsorption Isotherm Studymentioning

confidence: 99%

Phosphogypsum-Modified Vinasse Shell Biochar as a Novel Low-Cost Material for High-Efficiency Fluoride Removal

Liu,

Zhang,

Mou

2023

Molecules

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In this study, vinasse shell biochar (VS) was easily modified with phosphogypsum to produce a low-cost and novel adsorbent (MVS) with excellent fluoride adsorption performance. The physicochemical features of the fabricated materials were studied in detail using SEM, EDS, BET, XRD, FTIR, and XPS techniques. The adsorption experiments demonstrated that the adsorption capacity of fluoride by MVS was greatly enhanced compared with VS, and the adsorption capacity increased with the pyrolysis temperature, dosage, and contact time. In comparison to chloride and nitrate ions, sulfate ions significantly affected adsorption capacity. The fluoride adsorption capacity increased first and then decreased with increasing pH in the range of 3–12. The fluoride adsorption could be perfectly fitted to the pseudo-second-order model. Adsorption isotherms matched Freundlich and Sips isotherm models well, giving 290.9 mg/g as the maximum adsorption capacity. Additionally, a thermodynamic analysis was indicative of spontaneous and endothermic processes. Based on characterization and experiment results, the plausible mechanism of fluoride adsorption onto MVS was proposed, mainly including electrostatic interactions, ion exchange, precipitation, and hydrogen bonds. This study showed that MVS could be used for the highly efficient removal of fluoride and was compatible with practical applications.

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Enhanced phosphate adsorption studies on several metal-modified aluminum sludge: preparation optimization, adsorption behavior, and mechanistic insight

Chen

Guan

Hu³

et al. 2023

Environ Sci Pollut Res

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Enhanced & effective phosphate recovery from water by indium fumarate & zirconium fumarate metal-organic frameworks: Synthesis, characterization, adsorption, kinetic and isotherm studies

Cited by 5 publications

References 53 publications

Cerium-Based Nanoporous Metal–Organic Frameworks Incorporated with Different Metals for the Remediation of Fluoride Ions from Water

Cerium-Based Nanoporous Metal–Organic Frameworks Incorporated with Different Metals for the Remediation of Fluoride Ions from Water

Phosphogypsum-Modified Vinasse Shell Biochar as a Novel Low-Cost Material for High-Efficiency Fluoride Removal

Enhanced phosphate adsorption studies on several metal-modified aluminum sludge: preparation optimization, adsorption behavior, and mechanistic insight

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