Zeolite incorporated iron oxide nanoparticle composites for enhanced congo red dye removal

Singh, N. Joseph; Wareppam, Boris; Kumar, Anil; Singh, K. Priyananda; Garg, V. K.; Oliveira, Aylson Costa; Singh, L. Herojit

doi:10.1557/s43578-022-00859-w

Cited by 6 publications

(6 citation statements)

References 47 publications

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“…where m (g) is the adsorbent weight, V (L) is the volume of MB solution, Co (mg L -1 ) and Ct (mg L -1 ) are the initial concentration of MB solution and the concentration of MB solution at time t, respectively. The experimental data were matched with first-pseudoorder and pseudo-second-order kinetic models to understand the mechanism of MB adsorption on Fe3O4/ thiamine [22] and these mathematical models are presented in Eq. 3 and Eq.…”

Section: ) Adsorption Experimentsmentioning

confidence: 99%

“…3) 4) where qe (mg g -1 ) and qt (mg g -1 ) are the adsorption capacity at equilibrium and the adsorption capacity at time t, respectively; k1 (min -1 ) and k 2 (g mg -1 min -1 ) are the rate constants of pseudo-first-order model and pseudo-second-order model, respectively; and t (min) is the contact time. Adsorption isotherm models including Langmuir, Freundlich and Dubinin-Radushkevich were also explored by fitting the experimental data to the models at different MB concentrations (10,20,30,40,50 and 60 mg L -1 ) [22][23]. The linear mathematical models (Langmuir, Freundlich and Dubinin-Radushkevich models) are expressed in Eq.…”

Section: ) Adsorption Experimentsmentioning

confidence: 99%

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Application of Fe3O4/thiamine Magnetic Particles in the Removal of Methylene Blue

Tran-Nguyen,

Mai-Thi-Thu,

Nguyen

et al. 2023

App. Envi. Res.

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Fe3O4/thiamine particles were prepared in this work via precipitation method. The synthesis method is based on the principle of precipitation of Fe3O4 particles in the presence of thiamine coating agent. Also, the potential application of Fe3O4/ thiamine in the removal of methylene blue (MB) was investigated. Several factors that affect the synthesis of Fe3O4/thiamine such as base concentration, mass ratio of FeCl2 to thiamine, reaction temperature, and reaction time were determined. Optimal conditions for preparing Fe3O4/thiamine are NH4OH concentration = 10%, mass ratio of FeCl2:thiamine = 5:1 (g g-1), reaction temperature = 30 °C, reaction time = 120 min. The average particle size of Fe3O4/thiamine is 293.7 nm while the specific surface area, pore diameter, and magnetization of the obtained Fe3O4/ thiamine particles are 57 m2 g-1, 192.67 Å, and 2.4 emu g-1, respectively. The interesting point of this work is to obtain the Fe3O4/thiamine at low temperature with less amount of NH4OH used. Furthermore, 79.08% of MB could be removed using Fe3O4/thiamine as an adsorbent, with a maximum adsorption capacity of 31.63 mg g-1 at pH of 10, a MB concentration of 50 mg L-1, and an adsorption time of 15 min. Adsorption kinetics studies showed that the pseudo-second-order model fitted the experimental data better than the pseudo-first-order and the adsorption process is physical adsorption following the Freundlich adsorption isotherm model. An adsorption mechanism of MB onto Fe3O4/thiamine was also suggested. The synthesized Fe3O4/ thiamine particles could be a potential material for treating wastewater.

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Section: ) Adsorption Experimentsmentioning

confidence: 99%

Section: ) Adsorption Experimentsmentioning

confidence: 99%

Application of Fe3O4/thiamine Magnetic Particles in the Removal of Methylene Blue

Tran-Nguyen,

Mai-Thi-Thu,

Nguyen

et al. 2023

App. Envi. Res.

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“…The removal efficiency of the dye was found to be around 99%. 26 Zonato et al utilized solid residue (eggshells) as an adsorbent for dyes, achieving removal efficiencies of 92% for the dyes. 27 The novelty of this work resides in the investigation of the preparation and characterization of ZSM-5 zeolite, which was impregnated in three different proportions with chitosan and eggshell.…”

Section: Introductionmentioning

confidence: 99%

“…In 2023, a study was conducted to examine the effectiveness of zeolite and iron oxide composites in removing Congo red dye. The removal efficiency of the dye was found to be around 99% 26 . Zonato et al utilized solid residue (eggshells) as an adsorbent for dyes, achieving removal efficiencies of 92% for the dyes 27 …”

Section: Introductionmentioning

confidence: 99%

Development of chitosan by using a zeolite‐supported CaO derived from waste chicken eggshell to remove Acid Red 1 dye from the aqueous solution

Katowah,

Alzahrani

2024

Polymers for Advanced Techs

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ZSM‐5 zeolite modified with acetic acid eggshell and chitosan was impregnated in three distinct proportions. As nanocomposites (NCs), the purpose of the composites was to adsorb Acid Red 1 dye (AR‐1) from an aqueous solution. The characterization of chitosan@CaO/zeolite NCs included (CHT)1@(CaO/ZT)1, (CHT)1.5@(CaO/ZT)1, and (CHT)1@(CaO/ZT)1.5, as determined by FTIR, XRD, EDX, BET, TGA, and UV–Visible absorption spectroscopy. In a bulk system, the adsorption of the AR‐1 dye onto (CHT)1@(CaO/ZT)1.5 was analyzed in terms of solution temperature, pH, contact time, and NCs dosage. The most favorable parameters for achieving efficient dye adsorption were: a pH of 2, an adsorbent dosage of 0.05 g/25 mL of dye solution, and 20 mg/L of dye concentration at 22°C temperature. The reaction reached equilibrium after 120 min. The estimated adsorption efficiency of the AR‐1 dye by the prepared NCs is 99.70%. The mechanism by which the dye was sequestered onto (CHT)1@(CaO/ZT)1.5 was exothermic. The correlation coefficient (R2) for the pseudo‐second‐order adsorption kinetic model held true at different temperatures with a value of 0.99, indicating that the model accurately described the chemical interaction between the adsorbent and Acid Red (AR‐1). Adsorption processes are characterized as exothermic, feasible, and spontaneous when the Gibbs free energy (ΔG°) and enthalpy (ΔH°) changes have negative values, respectively. It was determined that the Langmuir model best described the isotherm behavior of AR‐1 dye adsorption onto (CHT)1@ (CaO/ZT)1.5. Under ideal conditions, the surface was found to be homogeneous and had a maximum adsorption capacity (qm) of 84.03 mg/g.

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“…[15] To tackle these challenges, surface coating of these NPs with polymers, carbon layers and organic ligands is one of the probable solutions in addition to enhancing the surface reactivity and adsorption capacity further. [16][17][18][19] The strong bonding between the embedded NPs and graphene oxide and the possible coexistence of hematite and magnetite were proposed to be beneficial for dye removal applications. [20] The enhanced dye adsorption by carbon compounds, however, has an inherent limitation of carbon, being nonmagnetic and not suitable for separation for reusability.…”

mentioning

confidence: 99%

Heterophase Grain Boundary‐Rich Superparamagnetic Iron Oxides/Carbon Composite for Cationic Crystal Violet and Anionic Congo Red Dye Removal

Singh,

Wareppam,

Raghavendra

et al. 2023

Adv Eng Mater

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Iron oxide‐based nanostructures receive significant attention as efficient adsorbents for organic dye removal applications. Herein, iron oxide/carbon composite with well‐defined heterophase grain boundaries is synthesized by a simple precipitation method and followed by calcination. The local structure, spin dynamics, and magnetic properties of heterophase iron oxides/carbon composite are thoroughly investigated to explore its cationic and anionic dye removal capability. To validate the effectivity of the presence of heterogeneous grain boundaries, iron oxide/carbon nanocomposite with homogeneous grain boundaries is also examined. For an initial dye concentration of 50 mg L−1, pH 7, and adsorbent dose of 0.2 g L−1, the hetero‐IOCC exhibits a removal capacity of 71.63 and 140.19 mg g−1 for the cationic crystal violet and the anionic Congo red dyes, respectively. These values are significantly greater than those exhibited by as‐synthesized imidazole‐capped superparamagnetic α‐Fe2O3, 48.15 and 53.19 mg g−1; and homophase iron oxide/carbon nanocomposite, 12.51 and 17.95 mg g−1, respectively. Adsorption isotherms and kinetic studies indicate that the Langmuir isotherm model is found to be an appropriate model following the Elovich kinetic model. A detailed dye adsorption investigation on the pH effect, thermodynamic parameters, coexisting ionic effect, and reusability is also carried out.

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Zeolite incorporated iron oxide nanoparticle composites for enhanced congo red dye removal

Cited by 6 publications

References 47 publications

Application of Fe3O4/thiamine Magnetic Particles in the Removal of Methylene Blue

Application of Fe3O4/thiamine Magnetic Particles in the Removal of Methylene Blue

Development of chitosan by using a zeolite‐supported CaO derived from waste chicken eggshell to remove Acid Red 1 dye from the aqueous solution

Heterophase Grain Boundary‐Rich Superparamagnetic Iron Oxides/Carbon Composite for Cationic Crystal Violet and Anionic Congo Red Dye Removal

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