Synthesizing and Playing with Magnetic Nanoparticles: A Comprehensive Approach to Amazing Magnetic Materials

Dalverny, Anne-Laure; Leyral, Géraldine; Rouessac, Florence Bosc; Bernaud, Laurent; Filhol, Jean‐Sébastien

doi:10.1021/acs.jchemed.7b00277

Cited by 12 publications

(9 citation statements)

References 16 publications

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“…Then five laboratory sessions (3 h each, weeks 5–9) follow, including the syntheses of ferrofluids, superconductors, phosphorescent materials, rubies, and opals. Parts of the protocol materials have been published in the Journal of Chemical Education . − Table contains a brief description of the synthesis of each of the materials (see the Supporting Information also). These laboratory sessions were chosen to illustrate key concepts, to see things for real, to search for the relevant synthesis protocol in the literature, to introduce new equipment or methodologies to the students, to train them in specific practical skills, to manage safety issues, to teach experimental design, and, finally, to develop collaborative, logical reasoning and interpretative skills …”

Section: Chemistry: Magical Sciencementioning

confidence: 99%

Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

2020

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An original integrated course called “Chemistry: Magical Science” at Montpellier University (France) is presented. This approach mixes tutorials and practical work by using the pretext of high-tech materials synthesis to teach students knowledge, skills, and practical techniques. It also educates students about chemical risks and bibliographic research and trains them for oral presentations. The practical work is partly directed and partly autonomous. This work involves a description of this course and its evaluation.

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Section: Chemistry: Magical Sciencementioning

confidence: 99%

Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

2020

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“…With the aim of the education of a young scientist in magnetic materials, several papers have been published ranging from the focus on Hund's rule in lathanide(III) containing complexes 5 to the synthesis of magnetic nanoparticles of iron oxides for, e.g., ferrofluids or ferrogels. 6 The aim is giving the students an understanding of how magnets work and how they can be used. Permanent magnets, which is the topic in this paper, often depend on the ability to create magnetic nanoparticles, which subsequently are compacted into a bulk magnet.…”

Section: ■ Introduction and Backgroundmentioning

confidence: 99%

Synthesis and Characterization of a Magnetic Ceramic Using an Easily Accessible Scale Setup

et al. 2021

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In this experiment, students explore the synthesis and physical property characterization of the magnetic material strontium hexaferrite (SrFe 12 O 19 ). SrFe 12 O 19 crystallites are prepared by a simple but fascinating sol−gel autocombustion synthesis. The prepared powder is compacted into pellets and sintered. With variation of the sintering temperature, it is possible to modify the magnetic properties. The structural properties of the samples are analyzed by powder X-ray diffraction. A tutorial demonstrates for the students how powder X-ray diffraction data from the sample combined with Rietveld refinement can extract phase purity and crystallite size. The magnetic properties are measured using a simple setup with a scale and a strong neodymium magnet; this gives an intuitive understanding of magnetism and how to measure magnetic properties. Additionally, the magnetic properties are measured with a vibrating sample magnetometer and compared to the results obtained using the simple scale method. The lab exercise can be adapted to different levels of education based on the background of the students and the equipment available in the laboratory.

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“…19 In a laboratory experiment, magnetic iron oxide nanoparticles (MNPs) have been produced and stabilized using ammonium cations or poly(vinyl alcohol) to form various versatile magnetic materials such as ferrofluids and ferromagnetic inks. 11 Very recently, MNPs have also been synthesized via coprecipitation method using razor blades as iron source, which were further utilized to remove contaminants from water. 12 Another example describes the preparation of a magnetiteactivated carbon nanocomposite by chemically incorporating MNPs into activated carbon which showed high removal efficiency for an aspirin metabolite.…”

Section: ■ Introductionmentioning

confidence: 99%

Synthesis of Magnetic Nanoparticles Using Potato Extract for Dye Degradation: A Green Chemistry Experiment

et al. 2019

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Systems thinking is highly desirable for re-imagining chemistry education, which will help in the development of an integrated and sustainable approach that takes into account the interdependence of a system under study with other components of the ecosystem rather than practicing a fragmented approach. Thus, to develop a systems' perspective into the minds of early researchers, we propose a safe, convenient, and reliable two sessions laboratory experiment in which students synthesize magnetic nanoparticles (MNPs) using plant-derived potato extract as a green reaction medium and as both reducing and stabilizing agent. The synthesized MNPs are effectively utilized in the degradation of rhodamine B dye under ultrasonic radiation and using H 2 O 2 as an oxidant. Further, the recyclability of MNPs was tested in successive runs. The described experiment has also been performed by numerous undergraduate students and is well appreciated by them. The former synthetic experiment gives students an introduction and hands on experience to nanotechnology through nanoparticle synthesis. While the later describes practical applications of nanotechnology in wastewater treatment, thereby reinforcing basic chemical principles and instrumentation techniques (such as FT-IR and UV−vis spectrophotometry) through environmental remediation. To foster students' higher order thinking skills, a systems thinking hierarchical model has also been proposed. It is believed that this context-based learning approach opens a door for re-imagining chemistry education and will help educate students and society in a more effective manner.

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Synthesizing and Playing with Magnetic Nanoparticles: A Comprehensive Approach to Amazing Magnetic Materials

Cited by 12 publications

References 16 publications

Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

Synthesis and Characterization of a Magnetic Ceramic Using an Easily Accessible Scale Setup

Synthesis of Magnetic Nanoparticles Using Potato Extract for Dye Degradation: A Green Chemistry Experiment

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