☆ 4.8 Review

Emerging carbon-based quantum dots for sustainable photocatalysis

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In situ modification of cobalt on MXene/TiO2 as composite photocatalyst for efficient nitrogen fixation

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G-C3N4 quantum dots and Au nano particles co-modified CeO2/Fe3O4 micro-flowers photocatalyst for enhanced CO2 photoreduction

Yanan Wei et al.

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RENEWABLE ENERGY (2021)

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Highly Enhanced Light-Matter Interaction in MXene Quantum Dots-Monolayer WS2 Heterostructure

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SMALL (2021)

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A Novel Carbon Support: Few-Layered Graphdiyne-Decorated Carbon Nanotubes Capture Metal Clusters as Effective Metal-Supported Catalysts

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Summary: The carbon-supported metal nanocatalysts with well-designed graphdiyne layer decorated on the carbon nanotubes sidewalls exhibited excellent catalytic activity for efficient hydrogen generation and aromatic nitroreduction. The novel carbon support possessed excellent conductivity, abundant and uniform reactive sites, low redox potential, high specific surface area, and strong interaction with metal atomic clusters, making it a promising candidate for other metal-supported catalysts.

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Insights into different dimensional MXenes for photocatalysis

Ke Zhang et al.

Summary: Introducing cocatalyst is an effective strategy to improve the photocatalytic performance of semiconductors, where novel transition metal carbides and nitrides like MXenes have emerged as a good alternative due to their high surface area and adjustable elemental composition. The performance of MXenes critically relies on their dimensions, as suggested by many theoretical and experimental studies. Understanding the current state of art of different dimensional MXenes in photocatalysis is essential for clarifying the prospects of their development.

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In Situ Construction of Mo2C Quantum Dots-Decorated CNT Networks as a Multifunctional Electrocatalyst for Advanced Lithium-Sulfur Batteries

Bo Yu et al.

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SMALL (2021)

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High-Throughput Screening of Atomic Defects in MXenes for CO2 Capture, Activation, and Dissociation

Vanshree Parey et al.

Summary: This study systematically investigated the influence of different structural defects on the performance of MXene materials, and found that certain MXenes exhibit remarkable capabilities for capturing CO2. Through high-throughput screening, it was discovered that some MXenes have high CO2 adsorption energies.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Photoenzymatic Catalytic Cascade System of a Pyromellitic Diimide/g-C3N4 Heterojunction to Efficiently Regenerate NADH for Highly Selective CO2 Reduction toward Formic Acid

Pengye Zhang et al.

Summary: By combining light with enzymes, a metal-free heterojunction of pyromellitic diimide/g-C3N4 (PDI/CN) with excellent visible light response was fabricated for efficient conversion of CO2 to formic acid. The unique photoenzymatic catalytic cascade system and heterointerface effect of PDI/CN contributed to the high selectivity and yield achieved. This work provides an efficient strategy and photocatalyst for the directional conversion of CO2 to formic acid.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Materials Science, Multidisciplinary

Designed synthesis of chlorine and nitrogen co-doped Ti3C2 MXene quantum dots and their outstanding hydroxyl radical scavenging properties

Lin Zhao et al.

Summary: In this study, chlorine and nitrogen co-doped Ti3C2 MXene quantum dots were designed and synthesized, showing outstanding hydroxyl radical scavenging properties. The MQDs exhibited a large surface-to-volume ratio due to small particle size and higher scavenging activity compared to graphene-based nanoparticles, with a lower usage amount. The main contributors to the excellent scavenging activity were identified as the reducing ability of the intrinsic Ti3C2 structure and electron donation of the double dopants.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2021)

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Article Chemistry, Physical

Bifunctional Catalytic Activity Guided by Rich Crystal Defects in Ti3C2 MXene Quantum Dot Clusters for Li-O2 Batteries

Peng Wang et al.

Summary: The study demonstrates that the Ti3C2 QDC/N-C material, with abundant crystal defects and well-defined grain boundaries and edge defects, enhances catalytic activity and cycling stability for lithium-oxygen batteries. Furthermore, density functional theory calculations reveal the significant role of crystal defects in catalytic centers.

ADVANCED ENERGY MATERIALS (2021)

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Article Physics, Multidisciplinary

A DFT study of Ti3C2O2 MXenes quantum dots supported on single layer graphene: Electronic structure an hydrogen evolution performance

Qingquan Kong et al.

Summary: In this study, density functional theory was used to investigate the electronic structure and hydrogen evolution performance of Ti3C2O2 MXene quantum dots/graphene heterostructure. It was found that hybridization with graphene caused a slight distortion in the electronic structure of QDs, leading to optimized catalytic activity and excellent HER performance.

FRONTIERS OF PHYSICS (2021)

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Recent advances of MXenes as electrocatalysts for hydrogen evolution reaction

Saishuai Bai et al.

Summary: MXenes, an emerging two-dimensional transition metal carbides, have shown great potential as electrocatalysts for hydrogen evolution reaction. This comprehensive study summarizes the preparation, applications, and strategies for enhancing the catalytic activity of MXenes, as well as identifying the existing challenges and new opportunities for MXenes-based electrocatalysts.

NPJ 2D MATERIALS AND APPLICATIONS (2021)

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Review Chemistry, Physical

Intercalation engineering of MXenes towards highly efficient photo(electrocatalytic) hydrogen evolution reactions

Jizhou Jiang et al.

Summary: The emergence of 2D MXenes composed of transition metal carbides, nitrides or carbonitrides has attracted significant scientific interest in recent years. Its unique layered structure and highly configured surface functional groups in its periphery are beneficial for applications in electrochemical supercapacitors, sensors, photocatalysts, and electrocatalysts. The interlayer spacing of MXenes can provide enough space for the intercalation agent to be embedded, which further increase the interlayer spacing of MXenes, and benefit the formation and modification of MXenes. In this review, the authors summarized several typical intercalators of MXenes and their relevant applications, which can provide significant guidance for designing highly efficient MXene catalysts for hydrogen evolution reaction.

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Article Engineering, Environmental

0D/1D Z-scheme g-C3N4 quantum dot/WO3 composite for efficient Cr (VI) photoreduction under visible light

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Summary: The study successfully constructed a CNQDs/WO3 Z-scheme heterostructure composite with excellent photocatalytic activity, especially prominent photoreduction performance under visible light irradiation for efficient degradation of Cr(VI). Additionally, the composite also exhibited good stability and recyclability, making it a promising candidate for environmental protection applications.

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MXenes: An Emerging Platform for Wearable Electronics and Looking Beyond

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Summary: Wearable devices have potential applications in various fields, but the development of flexible wearable electronics is still in its early stages. MXenes, as wonder materials, have shown promise in energy storage and sensing applications across different research areas.

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Janus-Structured Co-Ti3C2 MXene Quantum Dots as a Schottky Catalyst for High-Performance Photoelectrochemical Water Oxidation

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Fluorescence of functionalized graphene quantum dots prepared from infrared-assisted pyrolysis of citric acid and urea

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A MXene of type Ti3C2Tx functionalized with copper nanoclusters for the fluorometric determination of glutathione

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Nonoxidized MXene Quantum Dots Prepared by Microexplosion Method for Cancer Catalytic Therapy

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Noble Metal Free, Visible Light Driven Photocatalysis Using TiO2 Nanotube Arrays Sensitized by P-Doped C3N4 Quantum Dots

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Graphene quantum dots as the nucleation sites and interfacial regulator to suppress lithium dendrites for high-loading lithium-sulfur battery

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Metal-Free Enhanced Photocatalytic Activation of Dioxygen by g-C3N4 Doped with Abundant Oxygen-Containing Functional Groups for Selective N-Deethylation of Rhodamine B

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Rational Design of Hydroxyl-Rich Ti3C2Tx MXene Quantum Dots for High-Performance Electrochemical N2 Reduction

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Photocatalytic solar fuel production and environmental remediation through experimental and DFT based research on CdSe-QDs-coupled P-doped-g-C3N4 composites

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0D/2D Heterojunctions of Ti3C2 MXene QDs/SiC as an Efficient and Robust Photocatalyst for Boosting the Visible Photocatalytic NO Pollutant Removal Ability

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Emerging Chemical Functionalization of g-C3N4: Covalent/Noncovalent Modifications and Applications

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Conductivity tuning of charged triazine and heptazine graphitic carbon nitride (g-C3N4) quantum dots via nonmetal (B, O, S, P) doping: DFT calculations

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2D/2D/0D TiO2/C3N4/Ti3C2 MXene composite S-scheme photocatalyst with enhanced CO2 reduction activity

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Oxygen vacancies modified TiO2/Ti3C2 derived from MXenes for enhanced photocatalytic degradation of organic pollutants: The crucial role of oxygen vacancy to schottky junction

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Enhancing photodegradation activity of g-C3N4 via decorating with S-doped carbon nitride quantum dots by in situ polymerization

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0D/2D MXene Quantum Dot/Ni-MOF Ultrathin Nanosheets for Enhanced N2 Photoreduction

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Carbon-Based Quantum Dots with Solid-State Photoluminescent: Mechanism, Implementation, and Application

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Recent progress in g-C3N4 quantum dots: synthesis, properties and applications in photocatalytic degradation of organic pollutants

Teng Wang et al.

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CsPbBr3-Ti3C2Tx MXene QD/QD Heterojunction: Photoluminescence Quenching, Charge Transfer, and Cd Ion Sensing Application

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Two-dimensional transition metal carbide and nitride (MXene) derived quantum dots (QDs): synthesis, properties, applications and prospects

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Graphitic C3N4 quantum dots for next-generation QLED displays

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DFT study of small gas molecules adsorbed on undoped and N-, Si-, B-, and Al-doped graphene quantum dots

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White Photoluminescent Ti3C2 MXene Quantum Dots with Two-Photon Fluorescence

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Graphdiyne and its Assembly Architectures: Synthesis, Functionalization, and Applications

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Ti3C2 MXene quantum dots/TiO2 inverse opal heterojunction electrode platform for superior photoelectrochemical biosensing

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One-step synthesis of boron-doped graphene quantum dots for fluorescent sensors and biosensor

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Synthesis and Imaging of Biocompatible Graphdiyne Quantum Dots

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Boosting the Photocatalytic Ability of g-C3N4 for Hydrogen Production by Ti3C2 MXene Quantum Dots

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Boosting the Photocatalytic Ability of Cu2O Nanowires for CO2 Conversion by MXene Quantum Dots

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g-C3N4/B doped g-C3N4 quantum dots heterojunction photocatalysts for hydrogen evolution under visible light

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Facile fabrication of g-C3N4 QDs/BiVO4 Z-scheme heterojunction towards enhancing photodegradation activity under visible light

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Carbon quantum dot-based composites for energy storage and electrocatalysis: Mechanism, applications and future prospects

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Microwave growth and tunable photoluminescence of nitrogen-doped graphene and carbon nitride quantum dots

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Progress in microwave-assisted synthesis of quantum dots (graphene/carbon/semiconducting) for bioapplications: a review

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Ti3C2 MXene quantum dot-encapsulated liposomes for photothermal immunoassays using a portable near-infrared imaging camera on a smartphone

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Synergistic additive-mediated CVD growth and chemical modification of 2D materials

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Carbon-based quantum particles: an electroanalytical and biomedical perspective

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Effects of pretreatment ultrasound bath and ultrasonic probe, in osmotic dehydration, in the kinetics of oven drying and the physicochemical properties of beet snacks

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Graphdiyne Quantum Dots for Much Improved Stability and Efficiency of Perovskite Solar Cells

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A Red-Phosphorous-Assisted Ball-Milling Synthesis of Few-Layered Ti3C2Tx (MXene) Nanodot Composite

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An ultra-sensitive electrochemical sensor based on 2D g-C3N4/CuO nanocomposites for dopamine detection

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Black phosphorus quantum dots: synthesis, properties, functionalized modification and applications

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S-doped graphene quantum dots as nanophotocatalyst for visible light degradation

Biting Huang et al.

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High-yield fabrication of Ti3C2Tx MXene quantum dots and their electrochemiluminescence behavior

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Comparative study of electronic and optical properties of graphene and germanene: DFT study

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Self-modification of g-C3N4 with its quantum dots for enhanced photocatatytic activity

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NGQD active sites as effective collectors of charge carriers for improving the photocatalytic performance of Z-scheme g-C3N4/Bi2WO6 heterojunctions

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High photoluminescence quantum yield of 18.7% by using nitrogen- doped Ti3C2 MXene quantum dots

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Mass production of tunable multicolor graphene quantum dots from an energy resource of coke by a one-step electrochemical exfoliation

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Fabrication of ultra-small monolayer graphene quantum dots by pyrolysis of trisodium citrate for fluorescent cell imaging

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Oxidized 2D titanium carbide MXene Flash oxidized powders

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Ultrasmall Mo2C Nanoparticle-Decorated Carbon Polyhedrons for Enhanced Microwave Absorption

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Reduced-sized monolayer carbon nitride nanosheets for highly improved photoresponse for cell imaging and photocatalysis

Qinghua Liang et al.

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Photoelectrochemical hydrogen production at peak efficiency over 10% via PbSe QDs/TiO2 nanotube array photoanodes

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In-situ Evidence of the Redox-State Dependence of Photoluminescence in Graphene Quantum Dots

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Highly efficient photocatalytic activity of g-C3N4 quantum dots (CNQDs)/Ag/Bi2MoO6 nanoheterostructure under visible light

Xue Lin et al.

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Recent Advances in Atomic Metal Doping of Carbon-based Nanomaterials for Energy Conversion

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2D metal carbides and nitrides (MXenes) for energy storage

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Cryo-mediated exfoliation and fracturing of layered materials into 2D quantum dots

Yan Wang et al.

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A review on g-C3N4-based photocatalysts

Jiuqing Wen et al.

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Versatile Cutting Method for Producing Fluorescent Ultrasmall MXene Sheets

Zhiqiang Wang et al.

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Sulfur-Doped Graphene Oxide Quantum Dots as Photocatalysts for Hydrogen Generation in the Aqueous Phase

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Red, Yellow, and Blue Luminescence by Graphene Quantum Dots: Syntheses, Mechanism, and Cellular Imaging

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Photoluminescent Ti3C2 MXene Quantum Dots for Multicolor Cellular Imaging

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Peptide-Decorated Tunable-Fluorescence Graphene Quantum Dots

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Synthesis, properties and biomedical applications of carbon-based quantum dots: An updated review

Pooria Namdari et al.

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Hybridization of rutile TiO2 (rTiO2) with g-C3N4 quantum dots (CN QDs): An efficient visible-light-driven Z-scheme hybridized photocatalyst

Yuhan Li et al.

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Albumin-Mediated Biomineralization of Paramagnetic NIR Ag2S QDs for Tiny Tumor Bimodal Targeted Imaging in Vivo

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Phenyl-Modified Carbon Nitride Quantum Dots with Distinct Photoluminescence Behavior

Qianling Cui et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2016)

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Synthesis and efficient visible light photocatalytic H2 evolution of a metal-free g-C3N4/graphene quantum dots hybrid photocatalyst

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Facile synthesis of Sb2S3/ultrathin g-C3N4 sheets heterostructures embedded with g-C3N4 quantum dots with enhanced NIR-light photocatalytic performance

Hui Wang et al.

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Graphitic carbon nitride quantum dots loaded on leaf-like InVO4/BiVO4 nanoheterostructures with enhanced visible-light photocatalytic activity

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Architecting Nitrogen Functionalities on Graphene Oxide Photocatalysts for Boosting Hydrogen Production in Water Decomposition Process

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Nanotube-confinement induced size-controllable g-C3N4 quantum dots modified single-crystalline TiO2 nanotube arrays for stable synergetic photoelectrocatalysis

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Construction of nitrogen-doped graphene quantum dots-BiVO4/g-C3N4 Z-scheme photocatalyst and enhanced photocatalytic degradation of antibiotics under visible light

Ming Yan et al.

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Carbon quantum dots and their applications

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The photoluminescence mechanism in carbon dots (graphene quantum dots, carbon nanodots, and polymer dots): current state and future perspective

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Quantum size effects on the optical properties of nc-Si QDs embedded in an a-SiOx matrix synthesized by spontaneous plasma processing

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Three Colors Emission from S,N Co-doped Graphene Quantum Dots for Visible Light H2 Production and Bioimaging

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Facile synthesis of oxygen and sulfur co-doped graphitic carbon nitride fluorescent quantum dots and their application for mercury(II) detection and bioimaging

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Synergistic effect of oxygen and nitrogen functionalities for graphene-based quantum dots used in photocatalytic H2 production from water decomposition

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Nitrogen-Doped Graphene Oxide Quantum Dots as Photocatalysts for Overall Water-Splitting under Visible Light Illumination

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Dependence of electronic structure of g-C3N4 on the layer number of its nanosheets: A study by Raman spectroscopy coupled with first-principles calculations

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Preparation of functionalized water-soluble photoluminescent carbon quantum dots from petroleum coke

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g-C3N4 quantum dots: direct synthesis, upconversion properties and photocatalytic application

Wanjun Wang et al.

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A low-temperature solid-phase method to synthesize highly fluorescent carbon nitride dots with tunable emission

Juan Zhou et al.

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Microwave-assisted synthesis of L-glutathione capped ZnSe QDs and its interaction with BSA by spectroscopy

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Focusing on luminescent graphene quantum dots: current status and future perspectives

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The electron-transfer based interaction between transition metal ions and photoluminescent graphene quantum dots (GQDs): A platform for metal ion sensing

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Upconversion and Downconversion Fluorescent Graphene Quantum Dots: Ultrasonic Preparation and Photocatalysis

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Graphene quantum dots: emergent nanolights for bioimaging, sensors, catalysis and photovoltaic devices

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Uniform Graphene Quantum Dots Patterned from Self-Assembled Silica Nanodots

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Graphene Quantum Dots Derived from Carbon Fibers

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Photocatalytic CdSe QDs-decorated ZnO nanotubes: an effective photoelectrode for splitting water

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The electronic properties of graphene

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Chaotic dirac billiard in graphene quantum dots

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The rise of graphene

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Tri-s-triazine derivatives. Part I. From trichloro-tri-s-triazine to graphitic C3N4 structures

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