Recent advances in functional materials for rare earth recovery: A review

Sustainable materials and technologies, Год журнала: 2023, Номер 37, С. e00681 - e00681

Опубликована: Авг. 6, 2023

Rare Earth elements (REEs) were considered as one of the 14 critical mineral raw materials that are a crucial part high-tech and everyday consumer products. The demand for REEs has rapidly grown in recent years since they used sustainable technologies such high-performance magnets, rechargeable batteries, low-energy fluorescent lamps. Due to latest political tensions low substitutability mining technology, world market is at risk. One concepts industrial strategy reduce supply risks related increase their recycling. Among others, end-of-life electronic equipment mobile phones, lamps, computer hard drives (e-waste) can be promising source REE recovery. Critical parameters adsorptive recovery from e-wastes selectivity provided by functionalization adsorbent surface. scope this review an insight into current achievements solutions with high content transition heavy metals. covers resent advances synthesis application metal chelating, ion imprinted porous polymers; silica-based adsorbents covalently non-covalently attached ligands; magnetic green adsorbents; metal-organic frameworks carbon-based nanomaterials recuperation. Special attention was paid emerging materials, hybrid containing carbon nanoparticles. adsorbents' efficiency, selectivity, peculiarities revealed analysis essential conditions rare earth experiment. Different experimental revealing efficiency optimal pH working range, adsorption capacity, kinetic data, design experiment, effect coexisting ions, degree, presented review. Advances drawbacks each class highlighted review, well modern tendencies developing adsorbents.

Язык: Английский

---

Advances on carbon nanomaterials and their applications in medical diagnosis and drug delivery

Colloids and Surfaces B Biointerfaces, Год журнала: 2024, Номер 241, С. 114032 - 114032

Опубликована: Июнь 13, 2024

Язык: Английский

---

Eco-friendly Coccinia Grandis-derived excitation-dependent fluorescence of carbon dots for In-Vivo bioimaging and fluorescent ink applications

Materials Science and Engineering B, Год журнала: 2024, Номер 303, С. 117300 - 117300

Опубликована: Март 6, 2024

Язык: Английский

---

Environmental applications of carbon dots: Addressing microplastics, air and water pollution

Journal of Hazardous Materials Advances, Год журнала: 2025, Номер 17, С. 100591 - 100591

Опубликована: Янв. 5, 2025

Язык: Английский

---

Synthesis of iron nanoparticles on lemon peel carbon dots (LP-CDs@Fe3O4) applied in Photo-Catalysis, Antioxidant, Antidiabetic, and hemolytic activity

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 113960 - 113960

Опубликована: Янв. 1, 2025

Язык: Английский

---

Large Scale Synthesis of Carbon Dots and Their Applications: A Review

Molecules, Год журнала: 2025, Номер 30(4), С. 774 - 774

Опубликована: Фев. 7, 2025

Carbon dots (CDs), a versatile class of fluorescent carbon-based nanomaterials, have attracted widespread attention due to their exceptional optical properties, biocompatibility, and cost-effectiveness. Their applications span biomedicine, optoelectronics, smart food packaging, yet large-scale synthesis remains significant challenge. This review categorizes methods into liquid-phase (hydrothermal/solvothermal, microwave-assisted, magnetic hyperthermia, aldol condensation polymerization), gas-phase (plasma synthesis), solid-phase (pyrolysis, oxidation/carbonization, ball milling), emerging techniques (microfluidic, ultrasonic, molten-salt). Notably, microwave-assisted solid-state show promise for industrial production scalability efficiency. Despite these advances, challenges persist in optimizing reproducibility, reducing energy consumption, developing purification quality control strategies. Addressing issues will be critical transitioning CDs from laboratory research real-world applications.

Язык: Английский

---

Sour whey-derived carbon dots; synthesis, characterization, antioxidant activity and antimicrobial performance on foodborne pathogens

LWT, Год журнала: 2023, Номер 184, С. 114978 - 114978

Опубликована: Июнь 11, 2023

Zero-dimensional carbon nanomaterials, known as dots (CDs), have become increasingly popular nanostructures for food preservation due to their antimicrobial and antioxidant properties. In this study, heteroatom-doped CDs were effectively synthesized from sour whey using a hydrothermal method. The size, chemical, structural composition, well the optical spectral properties of CDs, thoroughly characterized. Furthermore, study also investigated antimicrobial, antioxidant, cytotoxic CDs. Semi-spherical N- P-doped with size less than 7.8 nm synthesized. results cytotoxicity test suggested that are low-toxic nanomaterial. susceptibility Salmonella Typhimurium was found be higher Listeria monocytogenes, minimum inhibitory concentration (MIC) bactericidal (MBC) 500 μL/mL 1000 μL/mL, respectively. Based on SEM observations, it observed derived mainly targeted bacterial cell wall. modeling kinetics, Weibull model provided strong fit (R2 > 0.9), particularly inactivation kinetics S. Typhimurium. produced abundant whey, which is sustainable, inexpensive, eco-friendly source, exhibited important characteristics such low capabilities. potential or agents in formulations, UV-blockers nanofillers development composite polymers packaging.

Язык: Английский

---

Emerging trends in green carbon dots coated with molecularly imprinted polymers for sensor platforms

TrAC Trends in Analytical Chemistry, Год журнала: 2023, Номер 166, С. 117205 - 117205

Опубликована: Июль 25, 2023

Язык: Английский

---

Voltammetric Sensor Based on Waste‐Derived Carbon Nanodots for Enhanced Detection of Nitrobenzene

ChemElectroChem, Год журнала: 2023, Номер 10(13)

Опубликована: Март 10, 2023

Abstract Carbon dots (CDs) samples were synthesized from orange peel waste (OPW) via a simple and eco‐friendly hydrothermal carbonization (HTC) electrochemical (EC) bottom‐up synthesis integrated approach. The comprehensive chemical‐physical characterization of CDs samples, carried out by various techniques such as TEM, EDX, XRD, FT‐IR, underlined their morphological microstructural features. exhibited attractive properties, thus an sensor modifying screen printed carbon electrode (CDs/SPCE) for the detection nitrobenzene (NB) in water was developed. Electroanalytical performances CDs/SPCE using differential pulse voltammetry (DPV) demonstrated its high sensitivity (9.36 μA μM −1 cm −2 ) towards NB wide linear dynamic range (0.1–2000 μM) low limit (LOD=13 nM). also shown selectivity, long‐term stability, repeatability. This paper might open way to new synergistic HTC‐EC approach biomass material advanced application highly efficient sensors.

Язык: Английский

---

Recent advances of biomass-derived carbon dots with room temperature phosphorescence characteristics

Nano Today, Год журнала: 2024, Номер 56, С. 102257 - 102257

Опубликована: Апрель 13, 2024

Язык: Английский

---