Recycling waste sources into nanocomposites of graphene materials: Overview from an energy-focused perspective

Ikram, Rabia; Jan, Badrul Mohamed; Nagy, Péter B.; Szabó, Tamás

doi:10.1515/ntrev-2022-0512

Cited by 18 publications

(5 citation statements)

References 351 publications

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“…Nowadays, this topic is still relevant; therefore, incessant improvement in waste management procedures is vital. It is confirmed in scientific articles, for instance, recycling materials into nanocomposites with graphene addition was lately summarized in a review paper, 20 nanocomposites containing recycled components, and dedicated to different applications were presented, 21−23 as examples. Narrowing down to nanoand microcomposites directed to γ and X-ray protection, and the authors also use recycled ingredients; 24−26 however, the possible step of separating the ingredients for their reuse is not encountered in experimental papers.…”

Section: ■ Introductionmentioning

confidence: 87%

Shape-Controlled Iron–Paraffin Composites as γ- and X-ray Shielding Materials Formable by Warmth-of-Hands-Derived Plasticity

Sobczak,

Truszkiewicz,

Korczeniewski

et al. 2023

ACS Appl. Eng. Mater.

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The design of shielding materials against ionizing radiation while simultaneously displaying enhanced multifunctional characteristics remains challenging. Here, for the first time, we present moldable paraffin-based iron nano-and microcomposites attenuating γand X-radiation. The moldability was gained by the warmth-of-hands-driven plasticity, which allowed for obtaining a specific shape of the composites at room temperature. The manufactured composites contained iron particles of various sizes, ranging from 22 nm to 63 μm. The target materials were widely characterized using XRD, NMR, Raman, TGA, SEM, and EDX. In the case of microcomposites, the shielding properties were developed at two concentrations: 10 and 50 wt %. The statistically significant results indicate that the iron particle size has a negligible effect on the shielding properties of the nano-and microcomposites. On the other hand, the higher iron particle contents significantly affected the attenuating ability, which emerged even as superior to the elemental aluminum in the X-ray range: at a 70 kV anode voltage, the half value layer was 6.689, 1.882, and 0.462 cm for aluminum, paraffin + 10 wt % Fe 3.5−6.5 μm, and paraffin + 50 wt % Fe 3.5−6.5 μm microcomposites, respectively. Importantly, the elaborated methodology�in situ cross-verified in the hospital studies recording real-life sampling�opens the pathway to high-performance, eco-friendly, lightweight, and recyclable shields manufactured via fully reproducible and scalable protocols.

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Section: ■ Introductionmentioning

confidence: 87%

Shape-Controlled Iron–Paraffin Composites as γ- and X-ray Shielding Materials Formable by Warmth-of-Hands-Derived Plasticity

Sobczak,

Truszkiewicz,

Korczeniewski

et al. 2023

ACS Appl. Eng. Mater.

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“…In the meantime, heat treatment readily converts soft carbon into graphite. In spite of the way that the properties of the converted carbon structures are similar to graphene, they are not unmodified graphene because of the presence of extra carbon components [ 24 ].…”

Section: Synthesis Of Waste Into Graphene Derivativesmentioning

confidence: 99%

An Overview of Recycling Wastes into Graphene Derivatives Using Microwave Synthesis; Trends and Prospects

Balqis,

Mohamed Jan,

Simon Cornelis Metselaar

et al. 2023

Materials

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It is no secret that graphene, a two-dimensional single-layered carbon atom crystal lattice, has drawn tremendous attention due to its distinct electronic, surface, mechanical, and optoelectronic properties. Graphene also has opened up new possibilities for future systems and devices due to its distinct structure and characteristics which has increased its demand in a variety of applications. However, scaling up graphene production is still a difficult, daunting, and challenging task. Although there is a vast body of literature reported on the synthesis of graphene through conventional and eco-friendly methods, viable processes for mass graphene production are still lacking. This review focuses on the variety of unwanted waste materials, such as biowastes, coal, and industrial wastes, for producing graphene and its potential derivatives. Among the synthetic routes, the main emphasis relies on microwave-assisted production of graphene derivatives. In addition, a detailed analysis of the characterization of graphene-based materials is presented. This paper also highlights the current advances and applications through the recycling of waste-derived graphene materials using microwave-assisted technology. In the end, it would alleviate the current challenges and forecast the specific direction of waste-derived graphene future prospects and developments.

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“…In particular, in [19], the use of nanocomposites in the field of intelligent optoelectronics is investigated. In [20], the problem of nanoprocessing of graphene waste in the energy sector, etc. is raised.…”

Section: The Object Of Research Is the Relationship Between The Proce...mentioning

confidence: 99%

Determining the impact of global-local transformations of property on the formation of nanoeconomics

Артьомова

Остапенко

Брітченко

2023

EEJET

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The object of research is the relationship between the processes of formation of the information-network society and the global-local transformation of property relations at the turn of the XX–XXI centuries. The problem has been identified that the limitations of theoretical approaches to explain the content and interrelation of property relations and the social meaning of high-tech development have led to an increase in general socio-economic instability. To solve the problem, the definition of the institution of property as an economic good is provided. A three-level traditional model of public management has been highlighted. It is shown that the existing triple structure of the public sector of economy should acquire a different value content. The new model in the dynamic unity of markets of pure public benefits, public goods, private goods harmonizes public interests, strengthens relations of trust. This model forms the foundations for the formation of nanoeconomics in a broad sense as the forerunner of harmonious institutional architectonics of the economy. Nanoeconomics, as part of baby economics, human economics, and economics of nanotechnology, is based on the principles of rational behavior in making economic decisions within the limits of power. In the depths of baby economics, skills and competencies are formed in handling property. The human economy ensures the proper implementation of property functions. Within the experimental part of the study, a mathematical model of multifactor regression is constructed. The model confirmed the presence of dense dependence (0.9076) of the growth of GDP per capita on the state of distribution of property rights in the national economy. The area of practical use of the results is the post-war reconstruction of Ukraine's economy through the activation of its domestic business potential.

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Recycling waste sources into nanocomposites of graphene materials: Overview from an energy-focused perspective

Cited by 18 publications

References 351 publications

Shape-Controlled Iron–Paraffin Composites as γ- and X-ray Shielding Materials Formable by Warmth-of-Hands-Derived Plasticity

Shape-Controlled Iron–Paraffin Composites as γ- and X-ray Shielding Materials Formable by Warmth-of-Hands-Derived Plasticity

An Overview of Recycling Wastes into Graphene Derivatives Using Microwave Synthesis; Trends and Prospects

Determining the impact of global-local transformations of property on the formation of nanoeconomics

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