Sustainable materials and technologies, Journal Year: 2022, Volume and Issue: 33, P. e00494 - e00494
Published: Sept. 1, 2022
Language: Английский
Small, Journal Year: 2020, Volume and Issue: 17(1)
Published: Dec. 2, 2020
Abstract Polymeric graphitic carbon nitride (g‐C 3 N 4 ) and various materials have experienced a renaissance as viable alternates in photocatalysis due to their captivating metal‐free features, favorable photoelectric properties, economic adaptabilities. Although numerous efforts focused on the integration of both with optimized photocatalytic performance recent years, direct parameters for this emerging enhancement are not fully summarized yet. Fully understanding synergistic effects between g‐C action is vital further development semiconductors future studies. Here, advances carbon/g‐C hybrids applications reviewed. The dominant governing factors by inducing into photocatalysts involving mechanism highlighted. Five typical carbon‐induced mainly discussed here, i.e., local electric modification, band structure tailoring, multiple charge carrier activation, chemical group functionalization, abundant surface‐modified engineering. Photocatalytic addressing directly renewable energy storage environmental remediation also summarized. Finally, perspectives ongoing challenges encountered presented.
Language: Английский
Citations
141
Carbon, Journal Year: 2021, Volume and Issue: 181, P. 9 - 15
Published: May 13, 2021
Language: Английский
Citations
140
Carbon Energy, Journal Year: 2021, Volume and Issue: 3(5), P. 795 - 826
Published: July 22, 2021
Abstract Carbon dots (CDs) and their composites as energy storage materials electrocatalysts have emerged new types of quasi‐zero‐dimensional carbon materials. CDs can provide a large specific surface area, numerous electron–electron hole pairs, adjustable heteroatom doping, rich functional groups, so on. However, the roles mechanisms composite in enhancement electrochemical performance remain unclear need to be understood depth. Based on most recent literature, this paper comprehensively reviews synthesis methods applications various categories electrode supercapacitors, lithium‐ion batteries, sodium‐ion potassium‐ion for hydrogen evolution, oxygen reduction reactions metal–air fuel cells, water electrolysis. To facilitate further research development, several important aspects related are summarized with analysis technical challenges practical discussion possible development perspectives.
Language: Английский
Citations
139
Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(44), P. 24759 - 24802
Published: Jan. 1, 2021
Synthesis and formation mechanisms of biomass-derived carbonaceous materials are critically reviewed in terms biomass sources, conversion methods additives for energy environmental applications.
Language: Английский
Citations
135
Advanced Optical Materials, Journal Year: 2021, Volume and Issue: 9(17)
Published: June 3, 2021
Abstract The immense progress of humanity on the technological, domestic, and industrial fronts comes at cost polluting planet. Aquatic pollution is particularly dangerous since all life forms are directly linked to it. Each year tons domestic pollutants make their way into aqueous systems. Efficient removal/degradation these prime importance for sustainable future. Among many technologies, photodegradation an emerging promising method successful removal it powered by abundant solar light. last decade had shown that carbon dots among most materials can be utilized as efficient tool derive various solar‐driven chemical reactions. Carbon possess unique photophysical properties such light‐harvesting over a broad‐spectrum region, upconversion photoluminescence, photosensitizers, inertness, bivalent redox character, etc. ease synthesis low also contributes hugely utilizations photocatalyst degradation pollutants. This review summarizes recent made in field with aid hybrids, highlighting critical role play field.
Language: Английский
Citations
132
Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(18), P. 11047 - 11136
Published: Sept. 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
Language: Английский
Citations
124
Particle & Particle Systems Characterization, Journal Year: 2021, Volume and Issue: 38(11)
Published: Sept. 13, 2021
Abstract Carbon quantum dots (CQDs) are a unique class of 0D nanomaterials, featured by graphitic core and shell layers saturated with hydrogen atoms functional groups. CQDs prepared through top‐down bottom‐up strategies from natural synthetic precursors. can be modified chemical (e.g., surface functionalization/passivation, doping, etc.) physical core–shell architecture, composite material blending, to control their properties. This review highlights the effect such modifications on photophysical properties CQDs, as photoluminescence (PL), absorbance, relaxivity. The dependence PL upon size, orientation at edges, edge functionalization, excitation wavelength, concentration, pH, aggregate formation, etc., summarized along supporting theoretical evidence available in literature. Also, this outlines recent advancements, future prospective optical sensing, bioimaging, fluorescent ink) catalytic applications photocatalysis electrocatalysis) enhanced structure composition.
Language: Английский
Citations
116
Small, Journal Year: 2022, Volume and Issue: 18(37)
Published: Aug. 19, 2022
Abstract Multifunctional nanozymes can benefit biochemical analysis via expanding sensing modes and enhancing analytical performance, but designing multifunctional to realize the desired of targets is challenging. In this work, single‐atomic iron doped carbon dots (SA Fe‐CDs) are designed synthesized a facile in situ pyrolysis process. The small‐sized CDs not only maintain their tunable fluorescence, also serve as support for loading dispersed active sites. Monoatomic Fe offers SA Fe‐CDs exceptional oxidase‐mimetic activity catalyze 3,3′,5,5′‐tetramethylbenzidine (TMB) oxidation with fast response ( V max = 10.4 nM s ‐1 ) strong affinity K m 168 µM). Meanwhile, photoluminescence quenched by product TMB due inner filter effect. Phosphate ions (Pi) suppress oxidase‐mimicking restore interacting Based on principle, dual‐mode colorimetric fluorescence assay Pi high sensitivity, selectivity, rapid established. This work paves path develop enzyme‐like catalysts, simple efficient method phosphate monitoring, which will inspire exploration multi‐mode strategies based nanozyme catalysis.
Language: Английский
Citations
116
Chemosphere, Journal Year: 2021, Volume and Issue: 287, P. 132313 - 132313
Published: Sept. 27, 2021
Language: Английский
Citations
114
Accounts of Materials Research, Journal Year: 2022, Volume and Issue: 3(3), P. 319 - 330
Published: Jan. 25, 2022
ConspectusHydrogen evolution by the electrolysis of water is an important energy conversion process, especially for some intermittent systems. However, its practical applicability limited low energy-conversion efficiency and need expensive electrocatalysts. In response, carbon-based nanocomposites have gained substantial interest as promising alternatives to currently used precious metal catalysts. Among them, carbon dots (CDs) exhibited many outstanding features, including flexible composition, high conductivity, good dispersion, strong coordination. The past decade has seen remarkable advances in CD-based electrocatalysts hydrogen evolution, where CDs their derived hybrids shown impressive performance indispensable prospects future utilization. widespread use still requires development high-quality advanced synthesis strategies. New assessment techniques are also required elucidate unique functions composition regulation, structure fabrication, surface modification, host–guest interactions ultimately establish relationships among structure, activity.This Account based on previous studies our group focuses types that make excellent evolution. It draws evidence from a range characterization such aberration-corrected scanning transmission electron microscopy, X-ray absorption spectroscopy, photoelectron situ Fourier transform infrared atomic force microscopy. As result, general route fabricating efficient reported, structure–activity correlations demonstrated. Heteroatomic modification via regulation investigated. For example, first-principles density functional theory investigate properties molybdenum phosphide modified with nitrogen-doped CDs: introduction nitrogen atoms generate vacancies, thus reducing coordination number reaction sites enhancing electrocatalytic activity. effect CDs' spatial confinement due self-assembly elucidated, splicing novel CD–metal interfacial effects greatly stabilize active components improve catalytic efficiency. Finally, we offer knowledge insights current challenges research directions this field perspectives CD growth mechanisms, electrocatalyst synthesis, optimization, expanding applicability.
Language: Английский
Citations
104