Chemosphere, Год журнала: 2023, Номер 339, С. 139638 - 139638
Опубликована: Июль 29, 2023
Язык: Английский
Environmental Research, Год журнала: 2022, Номер 212, С. 113283 - 113283
Опубликована: Апрель 21, 2022
Язык: Английский
Процитировано
211
Chemical Reviews, Год журнала: 2023, Номер 123(18), С. 11047 - 11136
Опубликована: Сен. 7, 2023
Advances in nanotechnology and nanomaterials have attracted considerable interest play key roles scientific innovations diverse fields. In particular, increased attention has been focused on carbon-based exhibiting extended structures unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, nanodiamonds, dots, possess excellent bioaffinities superior fluorescence properties that make suitable for application to environmental biological sensing, imaging, therapeutics. This review provides a systematic overview of the classification structural properties, design principles preparation methods, optical sensing applications nanomaterials. Recent interesting breakthroughs sensitive selective imaging heavy metal pollutants, hazardous substances, bioactive molecules as well information encryption, super-resolution photoacoustic phototherapy nanomedicine delivery are main focus this review. Finally, future challenges prospects materials highlighted envisaged. presents comprehensive basis directions designing, developing, applying fascinating fluorescent sensors fabricated based specific requirements numerous research
Язык: Английский
Процитировано
130
Carbon Energy, Год журнала: 2023, Номер 5(9)
Опубликована: Фев. 1, 2023
Abstract Photocatalytic water splitting is beneficial for the effective mitigation of global energy and environmental crises. Owing to multi‐exciton generation, impressive light harvesting, excellent photochemical properties, quantum dot (QD)‐based catalysts reveal a considerable potential in photocatalytic hydrogen (H 2 ) production compared with bulk competitors. In this review, we summarize recent advances QDs H by enumerating different synthetic characterization strategies QDs. Various QDs‐based photocatalysts are introduced summarized categories, role varied systems, as well mechanism key factors that enhance generation performance, discussed. Finally, conclusions future perspectives exploration highly efficient innovative applications highlighted.
Язык: Английский
Процитировано
110
Small, Год журнала: 2023, Номер 19(48)
Опубликована: Авг. 3, 2023
Carbon dots (CDs), a new type of carbon-based fluorescent nanomaterial, have attracted widespread attention because their numerous excellent properties. Lignocellulosic biomass is the most abundant renewable natural resource and possesses broad potential to manufacture different composite smart materials. Numerous studies explored using components (such as cellulose, hemicellulose, lignin) in lignocellulosic produce CDs. There are few papers systemically aiming review state-of-the-art works related biomass-derived In this review, significant advances synthesis processes, formation mechanisms, structural characteristics, optical properties, applications biomass-based CDs such cellulose-based CDs, hemicellulose-based lignin-based latest research reviewed. addition, future directions on improvement technology raw materials enhance properties proposed. This will serve road map for scientists engaged exploring more science fields achieve highest material performance goals
Язык: Английский
Процитировано
79
Small, Год журнала: 2023, Номер 19(10)
Опубликована: Янв. 15, 2023
Abstract Optical information encryption and safety have aroused great attention since they are closely correlated to data protection safety. The development of multiple stimuli‐response optical materials for constructing large‐capacity is very important practical applications. Carbon dots (CDs) many gratifying merits, such as polychromatic emission, diverse luminous categories, stable physicochemical properties, considered one the most ideal candidates protection. Herein, carbon core, functional groups, solvents, other crucial factors reviewed outputting emission categories. In particular, substrate engineering strategies been emphasized their critical role in yielding excellent features High‐capacity by relying on rich properties CDs, categories fluorescence, afterglow, upconversion, well external‐stimuli‐assisted changes. Some perspectives preparing CDs further developing security proposed. This review provides a good reference manipulation next‐generation
Язык: Английский
Процитировано
73
Journal of Colloid and Interface Science, Год журнала: 2022, Номер 617, С. 557 - 567
Опубликована: Март 10, 2022
Язык: Английский
Процитировано
72
Advanced Functional Materials, Год журнала: 2023, Номер 33(50)
Опубликована: Авг. 17, 2023
Abstract Large‐scale production of full‐color carbon dots (CDs) at room temperature under atmospheric pressure will promote their industrial application. Herein, o‐phenylenediamine is used as a single‐precursor source and hydrogen peroxide an oxidant. Kilogram‐scale CDs are obtained by stirring these reactants in air for 30 min. After purification acid treatment, blue‐, green‐, red‐fluorescence with photoluminescence peaks 481, 539, 625 nm quantum yields 21.76%, 27.12%, 13.06%, respectively. Based on chemical structural characterizations, reasonable formation mechanism deduced, blue, green, red fluorescence arising from nuclei stacked conjugate planes containing fragments quinoxaline, 2,3‐diaminophenazine (2,3‐DAPN), protonated 2,3‐DAPN, High‐quality multi‐color white light‐emitting diodes successfully fabricated to demonstrate potential commercial applications display illumination.
Язык: Английский
Процитировано
54
ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(13), С. 5082 - 5092
Опубликована: Март 13, 2023
Using biomass materials to prepare carbon dots (CDs) has received significant interest. As a cheap and environmentally friendly material, waste leather scrap can be used for the preparation of CDs performance tuning. Herein, is as precursor reactant fabricate multicolor (red, green, blue) (R-CDs, G-CDs, B-CDs) with tunable emission wavelength via simple one-step hydrothermal/solvothermal strategy using only nitrogen source (p-phenylenediamine or o-phenylenediamine) doping. The morphology, structure, optical properties were investigated by transmission electron microscopy (TEM), Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Raman ζ-potential measurements, photoelectron spectroscopy (XPS), ultraviolet–visible (UV–vis), photoluminescence (PL), UV-differential reflectance (UV-DRS). Results showed that sizes R-CDs, B-CDs are 10.0, 7.4, 2.5 nm, respectively, all have typical crystal plane graphitic structure rich in chemical groups such C═O, −OH, C–N, etc. detailed characterization comparison three types confirm size functional effectively add other energy levels transitions tuning luminescent CDs. wavelengths 612, 535, 429 at same time, calculated UV–vis DRS 2.11, 2.43, 2.58 eV, respectively. Because stable excellent performance, employed ink flexible films. utilization renewable scrap, along convenient methods, paves way sustainable, cost-effective synthesis practical applications anti-counterfeiting.
Язык: Английский
Процитировано
52
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 266, С. 131005 - 131005
Опубликована: Март 24, 2024
Язык: Английский
Процитировано
31
Green Chemistry, Год журнала: 2024, Номер 26(6), С. 3190 - 3201
Опубликована: Янв. 1, 2024
Five different M w fractionated lignins were used to prepare five types of L-CQDs for general cell imaging and clarify the effects lignin on formation properties L-CQDs.
Язык: Английский
Процитировано
30