Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 35(7), P. 109136 - 109136
Published: Sept. 21, 2023
Language: Английский
Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 35(1), P. 108423 - 108423
Published: April 5, 2023
Language: Английский
Citations
89
Small, Journal Year: 2023, Volume and Issue: 19(48)
Published: Aug. 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
Language: Английский
Citations
73
Small, Journal Year: 2023, Volume and Issue: 19(17)
Published: Jan. 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.
Language: Английский
Citations
65
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 472, P. 144654 - 144654
Published: July 16, 2023
Language: Английский
Citations
63
Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109289 - 109289
Published: Jan. 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.
Language: Английский
Citations
60
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(50)
Published: Aug. 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.
Language: Английский
Citations
51
Deleted Journal, Journal Year: 2024, Volume and Issue: 2(2)
Published: May 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.
Language: Английский
Citations
44
Advanced Science, Journal Year: 2023, Volume and Issue: 10(16)
Published: April 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.
Language: Английский
Citations
41
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(36)
Published: March 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).
Language: Английский
Citations
33
Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: 35(12), P. 109598 - 109598
Published: Feb. 4, 2024
Language: Английский
Citations
30