Chinese Chemical Letters, Год журнала: 2023, Номер 35(7), С. 109136 - 109136
Опубликована: Сен. 21, 2023
Язык: Английский
Chinese Chemical Letters, Год журнала: 2023, Номер 35(1), С. 108423 - 108423
Опубликована: Апрель 5, 2023
Язык: Английский
Процитировано
89
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
73
Small, Год журнала: 2023, Номер 19(17)
Опубликована: Янв. 29, 2023
Hydrogels have extremely high moisture content, which makes it very soft and excellently biocompatible. They become an important material a wide range of applications in various fields such as biomedicine, bionic smart material, electrochemistry. Carbon dot (CD)-based hydrogels are based on carbon dots (CDs) auxiliary substances, forming gel with comprehensive properties individual components. CDs embedding could not only solve their aggregation-caused quenching (ACQ) effect, but also manipulate the even bring some novel properties, achieving win-win situation. In this review, preparation methods, formation mechanism, CD-based hydrogels, sensing, adsorption, energy storage, catalysis -are summarized. Finally, brief discussion future research directions will be given.
Язык: Английский
Процитировано
65
Chemical Engineering Journal, Год журнала: 2023, Номер 472, С. 144654 - 144654
Опубликована: Июль 16, 2023
Язык: Английский
Процитировано
63
Nano Energy, Год журнала: 2024, Номер 122, С. 109289 - 109289
Опубликована: Янв. 13, 2024
Carbon quantum dots (C-dots) showed excellent structure-tunable optical properties, mainly composed of carbon, nitrogen and oxygen. They have been used for various types solid-state devices. Due to the photoluminescence quenching caused by aggregation, it is a challenge produce high yield large Stokes shift C-dots via controllable simple approaches. In this work, we demonstrated microwave assisted heating approach high-quality production with ten grams scale per batch in less than 4 min. The addition metal cation promoted formation foam-structure forming carboxyl-metal-amine complex, enabling spatial confined growth solid-state, contributing (QY) 73% 0.65 eV. By tuning structure C-dots, excitation dependent independent photoluminescent (PL) behavior were achieved because different energy states evidenced transient PL femtosecond absorption spectroscopy. These properties enable be successfully integrated luminescent solar concentrators (LSCs), having an external efficiency 3.0% power conversion 1.3% (225 cm2) excitation-dependent high-level anticounterfeiting fluorescent code, showing great potential system.
Язык: Английский
Процитировано
60
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
51
Deleted Journal, Год журнала: 2024, Номер 2(2)
Опубликована: Май 1, 2024
Abstract The precision treatment of tumors with minimal side effects is associated improved human health and quality life. In recent years, phototherapy has attracted significant attention in tumor therapy due to its versatility, spatiotemporal controllability, non‐resistance, effects. Carbon dots (CDs) are considered promising reagents because their simple preparation, facilitated surface modification, tunable energy bands, excellent electron‐transfer capabilities, remarkable photoelectric photothermal conversion properties, outstanding biocompatibility. This review summarizes advancements photo‐responsive CDs for photodynamic the emerging photocatalytic tumors. Finally, article discusses main challenges development oncology therapeutics strategies overcome these challenges.
Язык: Английский
Процитировано
44
Advanced Science, Год журнала: 2023, Номер 10(16)
Опубликована: Апрель 18, 2023
In the era of big data and artificial intelligence (AI), advanced storage processing technologies are in urgent demand. The innovative neuromorphic algorithm hardware based on memristor devices hold a promise to break von Neumann bottleneck. recent years, carbon nanodots (CDs) have emerged as new class nano-carbon materials, which attracted widespread attention applications chemical sensors, bioimaging, memristors. focus this review is summarize main advances CDs-based memristors, their state-of-the-art synapses, computing, human sensory perception systems. first step systematically introduce synthetic methods CDs derivatives, providing instructive guidance prepare high-quality with desired properties. Then, structure-property relationship resistive switching mechanism memristors discussed depth. current challenges prospects memristor-based synapses computing also presented. Moreover, outlines some promising application scenarios including sensors vision, low-energy quantum computation, human-machine collaboration.
Язык: Английский
Процитировано
41
Advanced Functional Materials, Год журнала: 2024, Номер 34(36)
Опубликована: Март 4, 2024
Abstract Carbon dots (CDs) are a burgeoning star of luminescent carbon‐based nanomaterials with emerging interest for various applications. Luminescence from the sp 2 ‐conjugated domains in carbon cores is considered to be intrinsic bandgap emission CDs, whereas relationship between them remains poorly understood. Simultaneously, solvent relaxation water molecules will quench fluorescence thus, obtaining strong luminescence CDs aqueous solutions great challenge. Herein, facile one‐step spatial‐confined cross‐condensation method that uses heat‐induced self‐foaming process ambient pressure has been developed synthesize highly unprecedented photoluminescence quantum yield (PLQY) over 97.2% water. The unique precursor‐derived cross‐arranged perylene skeleton hinders π–π stacking, while hydrophobicity conjugated units mitigates by molecules, resulting near‐unity PLQY solutions, enabling this demonstrate first optically pumped green lasing solution. Moreover, biomaterial‐based white light emitting diode fabricated using CDs‐stained silks as conversion cover realize high luminous efficiency 60.7 lm W −1 CIE color coordinate (0.33, 0.35).
Язык: Английский
Процитировано
33
Chinese Chemical Letters, Год журнала: 2024, Номер 35(12), С. 109598 - 109598
Опубликована: Фев. 4, 2024
Язык: Английский
Процитировано
30