Synthesis and Characterization of New Ferrite-Lignin Hybrids

Spiridon, Iuliana; Dascalu, Andrei; Coroabă, Adina; Apostol, Irina; Palamaru, Mircea Nicolae; Iordan, Alexandra Raluca; Borhan, Adrian Iulian

doi:10.3390/polym13152495

Cited by 5 publications

(5 citation statements)

References 51 publications

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“…The XPS analysis provided evidence about the composition of the trimetallic CuZnCo nanoparticles by revealing the presence of copper, zinc, and cobalt ( Figure 3 ). The high-resolution spectrum of Co 2p ( Figure 3 A) was analyzed and resolved into three signals: metallic Co at 777.9 eV, Co 2+ at 782.3 eV, and a Co 2+ shake-up satellite at 786.3 eV [ 52 ]. The Cu 2p signal is shown in Figure 3 B, displaying two distinct peaks at 933.1 eV and 934.9 eV.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

Arvinte,

Lungoci,

Coroaba

et al. 2023

Molecules

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The superior properties of electrodeposited trimetallic CuZnCo nanoparticles, arising from the synergistic effect of combining the unique features of metallic components, were confirmed using voltametric measurements. The surface morphology and structure of the as-prepared electrocatalysts were determined using scanning electron microscopy, energy-dispersive X-ray, and X-ray photoelectron spectroscopy techniques. Here, the trimetallic CuZnCo nanoparticles were synthesized as a powerful redox probe and highly efficient signal amplifier for the electrochemical oxidation of tryptophan. Differential pulse voltammetry studies showed a linear relationship with a tryptophan concentration of 5–230 μM, and the low detection limit was identified at 1.1 μM with a sensitivity of 0.1831 μA μM−1 cm−2.

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Section: Resultsmentioning

confidence: 99%

Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

Arvinte,

Lungoci,

Coroaba

et al. 2023

Molecules

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“…The 2θ values of 20, 30, 35, 37, 43, 55, 56, and 62, corresponding to the reflection plans (111), (220), (311), (222), (400), (422), (551), and (440), confirm the spinel structure of CF. [ 45 ] Also, the amorphous structure of xanthan was evidenced. [ 46 ] XGCF and XGACCF spectra present a diffraction peak at 2θ = 35°, which confirms the presence of the CF in the organic matrix.…”

Section: Resultsmentioning

confidence: 99%

“…The quantity of adsorbed water in monolayer reduced by about 43% and an increase in the dyes retained through hydrophobic interactions between the vinylic groups and 222), (400), ( 422), (551), and (440), confirm the spinel structure of CF. [45] Also, the amorphous structure of xanthan was evidenced. [46] XGCF and XGACCF spectra present a diffraction peak at 2θ = 35 , which confirms the presence of the CF in the organic matrix.…”

Section: Characterization Of Adsorbentsmentioning

confidence: 97%

Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Spiridon¹,

Apostol²,

Anghel³

et al. 2022

Applied Organom Chemis

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The present work is focused on developing new eco-friendly materials based on xanthan gum (XG) and cobalt ferrite (CF) nanoparticles with adsorptive properties. CF powder was prepared by the co-precipitation method. Esterification of XG was performed in order to improve its hydrophobic character, resulting in xanthan acrylate (XGAC). Thin films were prepared and characterized. The influence of pH and materials' composition on their water uptake capacity was investigated. Batch adsorption experiments were performed to evaluate the dye adsorption capacity of the materials. Materials comprising CF showed the highest values of dye removal percentage (up to 83%). The adsorption capacity of XGACCF for Methyl Blue (MB) was 65.56 mg g À1 , while the same material retained 63.35 mg g À1 of Basic Fuchsine (BF) dye solution. Equilibrium adsorption data were well fitted to two (Langmuir and Dubinin-Radushkevich) isotherm models. The adsorption kinetics were analyzed by the pseudo-first-order model, pseudo-second-order model, and Elovich model. A spontaneous endothermic physisorption process was recorded for MB adsorption, while BF retention was evaluated as an exothermic process.

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“…Lignin is a well-branched phenol polymer and accounts for about 15–20% of the total weight of LCBM [ 43 ]. Based on its molecular structure, lignin is made up of three main components that are connected by a variety of bonds [ 29 ]. As per the nature of LCBM, the structure of lignin is also variable, and the process of degradation powerfully dependent on its constitution.…”

Section: Structure and Biosynthesis Of Ligninmentioning

confidence: 99%

“…Further, the authors investigated the synthesized material by using Fourier-transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS) and vibrating sample magnetometer system (VSM) for magnetic properties. This particular hybrid had a spinel structure whose crystal size increased with greater calcination temperature [ 29 ]. Kumar et al, 2021 has used LiG particles for gene/drug delivery and for tissue-engineering applications [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Synthesis and Degradation of Lignin and Lignin Nanoparticles and Their Emerging Applications in Nanotechnology

Yadav¹,

Gupta

Kumar

et al. 2022

Materials

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Lignin is an important commercially produced polymeric material. It is used extensively in both industrial and agricultural activities. Recently, it has drawn much attention from the scientific community. It is abundantly present in nature and has significant application in the production of biodegradable materials. Its wide usage includes drug delivery, polymers and several forms of emerging lignin nanoparticles. The synthesis of lignin nanoparticles is carried out in a controlled manner. The traditional manufacturing techniques are costly and often toxic and hazardous to the environment. This review article highlights simple, safe, climate-friendly and ecological approaches to the synthesis of lignin nanoparticles. The changeable, complex structure and recalcitrant nature of lignin makes it challenging to degrade. Researchers have discovered a small number of microorganisms that have developed enzymatic and non-enzymatic metabolic pathways to use lignin as a carbon source. These microbes show promising potential for the biodegradation of lignin. The degradation pathways of these microbes are also described, which makes the study of biological synthesis much easier. However, surface modification of lignin nanoparticles is something that is yet to be explored. This review elucidates the recent advances in the biodegradation of lignin in the ecological system. It includes the current approaches, methods for modification, new applications and research for the synthesis of lignin and lignin nanoparticles. Additionally, the intricacy of lignin’s structure, along with its chemical nature, is well-described. This article will help increase the understanding of the utilization of lignin as an economical and alternative-resource material. It will also aid in the minimization of solid waste arising from lignin.

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Synthesis and Characterization of New Ferrite-Lignin Hybrids

Cited by 5 publications

References 51 publications

Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Recent Advances in Synthesis and Degradation of Lignin and Lignin Nanoparticles and Their Emerging Applications in Nanotechnology

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