Comparative approach towards the adsorption of Reactive Black 5 and methylene blue by n-layer graphene oxide and its amino-functionalized derivative

Fraga, Tiago José Marques; Souza, Ziani Santana Bandeira de; Fraga, Daysianne Mikaella dos Santos Marques; Carvalho, Mário de Faria; Freire, Eleonora Maria Pereira de Luna; Ghislandi, Marcos Gomes; Sobrinho, Maurı́cio Alves da Motta

doi:10.1007/s10450-019-00156-9

Cited by 33 publications

(10 citation statements)

References 46 publications

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“…This remarkable stability makes the sorbent very promising for MB recovery (as an example of cationic dyes); although it would be necessary to evaluate this performance with complex effluents (which composition could involve the progressive poisoning of the sorbent with competitor solutes, including molecules poorly desorbable). Similar remarkable stability was also reported for sorbents such as n-layer aminated graphene oxide [72] (for 10 cycles) or Saudi red clay [82].…”

Section: Dye Desorption and Sorbent Recyclingsupporting

confidence: 81%

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2-Mercaptobenzimidazole-functionalized chitosan for enhanced removal of methylene blue: Batch and column studies

Elwakeel

Elgarahy

Al‐Bogami

et al. 2021

Journal of Environmental Chemical Engineering

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Section: Dye Desorption and Sorbent Recyclingsupporting

confidence: 81%

“…The enthalpy changes for gellan-pullulan nanogels were reported around 5 kJ mol −1 [2]. On the opposite hand, the sorption of MB onto silica-based sorbents [10] and n-layer aminated graphene oxide [72] shows higher values for the entropy change and high negative values for the enthalpy change.…”

Section: Sorption Isotherms and Thermodynamic Parametersmentioning

confidence: 99%

2-Mercaptobenzimidazole-functionalized chitosan for enhanced removal of methylene blue: Batch and column studies

Elwakeel

Elgarahy

Al‐Bogami

et al. 2021

Journal of Environmental Chemical Engineering

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“…Moreover, the calculated Q e values ( Q e,cal = 3.71, 3.62) based on the PSO model were in good agreement with the experimental values ( Q e,exp = 3.69, 3.59). These results suggest that the adsorption is mainly dependent on the adsorption capacity of the surface sites on GO@PAA@Fe 3 O 4 at equilibrium. , …”

Section: Resultsmentioning

confidence: 81%

“…These results suggest that the adsorption is mainly dependent on the adsorption capacity of the surface sites on GO@PAA@Fe 3 O 4 at equilibrium. 32,33 Measurement of Adsorption Isotherm. The adsorption isotherms of IAA and IPA on GO@PAA@Fe 3 O 4 were determined at 35 °C, at pH 4.0, in solutions with the concentrations of the two target indolic derivatives ranging from 5.0 to 200.0 mg/L.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Polyamine-Modified Magnetic Graphene Oxide Nanocomposites and HPLC-MS/MS Allow the Determination of Two Indolic Derivatives in Strong-Aroma Types of Base Baijiu

Dong

Guo

Lin

et al. 2020

J. Agric. Food Chem.

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Simultaneous detection of 3-indoleacetic acid (IAA) and 3-indolepropionic acid (IPA) in strong-aroma types of base Baijiu (base SAB) is crucial for elucidating the metabolic pathway of 3-methylindole during the base SAB brewing. Herein, a novel magnetic poly(allylamine)-modified graphene oxide (GO@PAA@Fe3O4) was synthesized as extraction sorbent, followed by high performance liquid chromatography mass spectrometry HPLC-MS/MS. As a surface modifier of GO, the introduction of PAA and Fe3O4 provided more adsorption sites for IAA and IPA, mainly through the generation of H-bonding sites. Moreover, modified by an activation step, the capacity of the activated GO@PAA@Fe3O4 for the adsorption of IAA and IPA was 2.1–3.4 times higher than that of unactivated material. The adsorptions of IAA and IPA on GO@PAA@Fe3O4 were fitted to the pseudo-second-order kinetic model and Langmuir isotherm, respectively. Under the optimal conditions, IAA and IPA were determined in 16-base SAB for the first time, and their concentrations ranged from 0.6 to 11.3 and 0.7 to 18.7 μg/L, respectively.

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“… 9 − 12 On the contrary, the adsorption process, which is widely used, has been shown to be highly effective and more economical. 13 , 14 Numerous materials have been used as adsorbents. Among them, magnetic zero-valent-based bimetallic nanoparticles (NPs) have attracted growing interest owing to their promising features.…”

Section: Introductionmentioning

confidence: 99%

One-Step Room-Temperature Synthesis of Bimetallic Nanoscale Zero-Valent FeCo by Hydrazine Reduction: Effect of Metal Salts and Application in Contaminated Water Treatment

et al. 2022

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The effect of initial salt composition on the formation of zero-valent bimetallic FeCo was investigated in this work. Pure crystalline zero-valent FeCo nanoparticles (NPs) were obtained using either chloride or nitrate salts of both metals. Smaller NPs can be obtained using nitrate salts. Comparing the features of the FeCo prepared at room temperature and the solvothermal method revealed that both materials are almost identical. However, the room-temperature method is simpler, quicker, and saves energy. Energy-dispersive X-ray (EDX) analysis of the FeCo NPs prepared using nitrate salts at room temperature demonstrated the absence of oxygen and the presence and uniform distribution of Fe and Co within the structure with the atomic ratio very close to the initially planned one. The particles were sphere-like with a mean particle size of 7 nm, saturation magnetization of 173.32 emu/g, and surface area of 30 m 2 /g. The removal of Cu 2+ and reactive blue 5 (RB5) by FeCo in a single-component system was conformed to the pseudo-first-order and pseudo-second-order models, respectively. The isotherm study confirmed the ability of FeCo for the simultaneous removal of Cu 2+ and RB5 with more selectivity toward Cu 2+ . The RB5 has a synergistic effect on Cu 2+ removal, while Cu 2+ has an antagonistic effect on RB5 removal.

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Comparative approach towards the adsorption of Reactive Black 5 and methylene blue by n-layer graphene oxide and its amino-functionalized derivative

Cited by 33 publications

References 46 publications

2-Mercaptobenzimidazole-functionalized chitosan for enhanced removal of methylene blue: Batch and column studies

2-Mercaptobenzimidazole-functionalized chitosan for enhanced removal of methylene blue: Batch and column studies

Polyamine-Modified Magnetic Graphene Oxide Nanocomposites and HPLC-MS/MS Allow the Determination of Two Indolic Derivatives in Strong-Aroma Types of Base Baijiu

One-Step Room-Temperature Synthesis of Bimetallic Nanoscale Zero-Valent FeCo by Hydrazine Reduction: Effect of Metal Salts and Application in Contaminated Water Treatment

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