Core–shell magnetic nanocomposite of Fe3O4@SiO2@NH2 as an efficient and highly recyclable adsorbent of methyl red dye from aqueous environments

Ghorbani, Farshid; Kamari, Soran

doi:10.1016/j.eti.2019.100333

Cited by 68 publications

(28 citation statements)

References 80 publications

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“…This approach could contribute to minimize waste and to apply more economic methods. For instance, silica were obtained from rice husk by calcination and acid leaching and with microwave assistance [45,46]. Additionally, solid waste coal gasification fine slag as the silica source successfully produced mesoporous glass microspheres with a specific surface area of 364 m 2 g −1 and an adsorption capacity of 140.57 mg g −1 in methylene blue removal [47].…”

Section: Silica-based Materialsmentioning

confidence: 99%

“…Additionally, solid waste coal gasification fine slag as the silica source successfully produced mesoporous glass microspheres with a specific surface area of 364 m 2 g −1 and an adsorption capacity of 140.57 mg g −1 in methylene blue removal [47]. Recently, silica obtained from rice husk has been used to incorporate an amorphous silica shell onto magnetite obtaining core-shell nanoparticles [45]. These particles were then amino-functionalized with (3-aminopropyl)trimethoxysilane (APTMS) and tested in the adsorption of methylene red dye.…”

Section: Silica-based Materialsmentioning

confidence: 99%

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Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

et al. 2020

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Water quality has become one of the most critical issue of concern worldwide. The main challenge of the scientific community is to develop innovative and sustainable water treatment technologies with high efficiencies and low production costs. In recent years, the use of nanomaterials with magnetic properties used as adsorbents in the water decontamination process has received considerable attention since they can be easily separated and reused. This review focuses on the state-of-art of magnetic core–shell nanoparticles and nanocomposites developed for the adsorption of organic pollutants from water. Special attention is paid to magnetic nanoadsorbents based on silica, clay composites, carbonaceous materials, polymers and wastes. Furthermore, we compare different synthesis approaches and adsorption performance of every nanomaterials. The data gathered in this review will provide information for the further development of new efficient water treatment technologies.

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Section: Silica-based Materialsmentioning

confidence: 99%

Section: Silica-based Materialsmentioning

confidence: 99%

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

et al. 2020

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“…The focus of most of the current efforts is to have a smart synthesis of nanomaterials with high quality structures and distinctive features (e.g., magnetic, optical, catalytic, antimicrobial activities, etc.). These features would improve crucial characteristics such as permeability, hydrophilicity, selectivity, and mechanical properties, expanding the potential applications of nanomaterials in several fields [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…A special attention has been paid toward magnetic nanoparticles (mNPs), where their unique magnetic features, low toxicity and hence reasonable biocompatibility, diffusibility, easy recovery, and high surface area, would open realms of applications [ 3 , 4 ]. Iron oxides-based mNPs (hematite α-Fe 2 O 3 , maghemite γ-Fe 2 O 3 , and magnetite Fe 3 O 4 ) are among the most investigated nanosystems for wastewater treatment [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Smart Synthesis of Trimethyl Ethoxysilane (TMS) Functionalized Core–Shell Magnetic Nanosorbents Fe3O4@SiO2: Process Optimization and Application for Extraction of Pesticides

et al. 2020

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In the current study, a smart approach for synthesizing trimethyl ethoxysilane–decorated magnetic-core silica-nanoparticles (TMS-mcSNPs) and its effectiveness as nanosorbents have been exploited. While the magnetite core was synthesized using the modified Mössbauer method, Stöber method was employed to coat the magnetic particles. The objective of this work is to maximize the magnetic properties and to minimize both particle size (PS) and particle size distribution (PSD). Using a full factorial design (2k-FFD), the influences of four factors on the coating process was assessed by optimizing the three responses (magnetic properties, PS, and PSD). These four factors were: (1) concentration of tetraethyl-orthosilicate (TEOS); (2) concentration of ammonia; (3) dose of magnetite (Fe3O4); and (4) addition mode. Magnetic properties were calculated as the attraction weight. Scanning electron microscopy (SEM) was used to determine PS, and standard deviation (±SD) was calculated to determine the PSD. Composite desirability function (D) was used to consolidate the multiple responses into a single performance characteristic. Pareto chart of standardized effects together with analysis of variance (ANOVA) at 95.0 confidence interval (CI) were used to determine statistically significant variable(s). Trimethyl ethoxysilane–functionalized mcSNPs were further applied as nanosorbents for magnetic solid phase extraction (TMS-MSPE) of organophosphorus and carbamate pesticides.

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“…Another approach for the development of the nextgeneration adsorbents is represented by the core-shell nanostructures, having as main advantage the possibility to be applied in industrial application, as well as their facile removal, after their utilization, by applying an external magnetic field. The approach was used by several authors for developing core-shell structures applied in adsorption studies of different types of pollutants (Fe 3 O 4 /SiO 2 for the adsorption of dyes [12] or insecticides [13] or á-Fe/EDTA for the adsorption of metallic ions [14]).…”

mentioning

confidence: 99%

Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites I. Synthesis and characterization of the adsorbent material

Fierăscu¹,

Şomoghi²,

Nicolae³

et al. 2019

Rev.Chim.

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An inorganic/organic magnetic nanocomposite was synthesized and analytically characterized using X-ray fluorescence, X-ray diffraction, transmission electron microscopy and thermal analysis. The evaluation of the magnetic properties revealed that both the magnetite and the magnetite/chitosan nanocomposite are superparamagnetic with a paramagnetic component, having the saturation magnetization values of 48.04 emu/g, and 41.3 emu/g, respectively. The synthesized material is indented for the adsorption of two known commercial-available pesticides (active ingredients deltamethrin and thiamethoxam, respectively) from aqueous solutions.

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Core–shell magnetic nanocomposite of Fe3O4@SiO2@NH2 as an efficient and highly recyclable adsorbent of methyl red dye from aqueous environments

Cited by 68 publications

References 80 publications

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

Smart Synthesis of Trimethyl Ethoxysilane (TMS) Functionalized Core–Shell Magnetic Nanosorbents Fe3O4@SiO2: Process Optimization and Application for Extraction of Pesticides

Facile Removal of Pesticides from Aqueous Solutions Using Magnetic Nanocomposites I. Synthesis and characterization of the adsorbent material

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