4.8 Article

Electrostatic self-assembly of 2D/2D CoWO4/g-C3N4 p-n heterojunction for improved photocatalytic hydrogen evolution: Built-in electric field modulated charge separation and mechanism unveiling

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Understanding the roles of carbon in carbon/g-C3N4 based photocatalysts for H2 evolution

Mu Xiao et al.

Summary: Coupling graphitic carbon nitride (CN) with carbonaceous materials enhances photocatalytic performance by improving exciton dissociation and charge transfer. The enhanced light absorption from carbon has little contribution to H-2 evolution activity.

NANO RESEARCH (2023)

Article Chemistry, Physical

Multiscale structural engineering of carbon nitride for enhanced photocatalytic H2O2 production

Qing He et al.

Summary: This study demonstrates the successful engineering of carbon nitride at a multiscale level to enhance its optoelectronic properties and significantly improve photocatalytic efficiency. The resulting catalyst shows a remarkable H2O2 production rate, surpassing that of bulk C3N4 and most other C3N4-based photocatalysts. The catalyst also exhibits excellent stability under visible light irradiation, making it a valuable candidate for practical applications.

NANO RESEARCH (2023)

Article Chemistry, Physical

van der Waals type II carbon nitride homojunctions for visible light photocatalytic hydrogen evolution

Xiaojie Li et al.

Summary: Photocatalytic hydrogen evolution reaction (PC-HER) provides a solution to energy crisis and environmental pollution. The g-C3N4-based van der Waals homojunctions exhibit outstanding PC-HER rates due to the cooperative effects of various factors, such as shortened bandgap, enlarged specific surface area, matched type II energy band structure, and specific vdW structures.

NANO RESEARCH (2023)

Article Chemistry, Physical

Constructing Pd-N interactions in Pd/g-C3N4 to improve the charge dynamics for efficient photocatalytic hydrogen evolution

Xudong Xiao et al.

Summary: The study demonstrates the use of an organic compound to produce tubular carbon nitride (TCN) as a support for Pd nanoparticles (NPs) to form a composite material (NP-Pd-TCN). It was found that preferentially bind with the electron-rich N atoms of TCN, leading to the formation of Pd-N bonds and improving charge transfer. The composite material showed excellent photocatalytic hydrogen evolution under visible-light irradiation, achieving a high evolution rate.

NANO RESEARCH (2022)

Review Chemistry, Multidisciplinary

Inorganic Metal-Oxide Photocatalyst for H2O2 Production

Linxi Wang et al.

Summary: Hydrogen peroxide is a versatile oxidizing agent used in various applications, with its production via anthraquinone oxidation process being considered inefficient and environmentally unfriendly. Photocatalytic production of H2O2 using inorganic metal oxide semiconductors is a green and cost-effective alternative, although productivity is still a challenge in laboratory research. Efforts are being made to enhance the photocatalytic activity for H2O2 production, with modifications and quantification methods being explored for future advancements in this field.

SMALL (2022)

Article Chemistry, Physical

Facile synthesis of C3N4-supported metal catalysts for efficient CO2 photoreduction

Yun-Nan Gong et al.

Summary: This study successfully developed photocatalysts with highly dispersed metal centers on g-C3N4 through a simple synthesis method, with the optimal 25-Co-C3N4 showing excellent performance for CO2 reduction without the need for noble metal catalysts/sensitizers.

NANO RESEARCH (2022)

Article Chemistry, Physical

Boosting photocatalytic hydrogen evolution of g-C3N4 catalyst via lowering the Fermi level of co-catalyst

Hairui Cai et al.

Summary: The catalytic performance of photocatalysts highly depends on charge separation and surface reaction kinetics. Lowering the Fermi level of Pt3Co co-catalyst on g-C3N4 results in less positive influence on charge separation, but faster surface reaction kinetics for H2 evolution compared to Pt co-catalyst.

NANO RESEARCH (2022)

Article Materials Science, Multidisciplinary

Enhanced visible light photocatalytic efficiency of La-doped ZnO nanofibers via electrospinning-calcination technology

Shaoju Jian et al.

Summary: A series of La-doped ZnO nanofibers were prepared by electrospinning-calcination technology and their photocatalytic performance for Rhodamine B degradation was evaluated under visible light irradiation. The ZnO nanofibers doped with 1.5 at.% La exhibited high catalytic efficiency.

ADVANCED POWDER MATERIALS (2022)

Article Chemistry, Physical

A hierarchical heterostructure of CdS QDs confined on 3D ZnIn2S4 with boosted charge transfer for photocatalytic CO2 reduction

Zezhou Zhu et al.

Summary: The unique heterogeneously nanostructured ZnIn2S4-CdS heterostructure shows excellent catalytic performance in CO2 photoconversion under visible-light irradiation by enhancing light harvesting and accelerating electron transport.

NANO RESEARCH (2021)

Article Chemistry, Applied

Efficient Co@Co3O4 core-shell catalysts for photocatalytic water oxidation and its behaviors in two different photocatalytic systems

Di Wang et al.

Summary: This study prepared four different metallic Co microparticles using different reduction methods, and then obtained Co@Co3O4 core-shell microparticles by oxidizing these metallic Co microparticles in air or in the reacting solution in situ. The microparticles showed excellent catalytic activities and stabilities in the [Ru(bpy)(3)](2+)/S2O82-/light system, functioning as catalysts for photocatalytic water oxidation.

JOURNAL OF ENERGY CHEMISTRY (2021)

Article Engineering, Environmental

Photocatalytic carbon dioxide reduction: Exploring the role of ultrathin 2D graphitic carbon nitride (g-C3N4)

Maansi Aggarwal et al.

Summary: Photocatalytic CO2 reduction is crucial in mitigating the detrimental consequences of greenhouse gases. 2D carbon nitride materials show promising potential for the reduction of CO2 into value-added products.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

High flux photocatalytic self-cleaning nanosheet C3N4 membrane supported by cellulose nanofibers for dye wastewater purification

Lilong Zhang et al.

Summary: This study presents a preparation process for a photocatalytic membrane device that can degrade dye pollution under visible light. By utilizing cellulose nanofibers (CNFs) and nanosheet C3N4 (NS C3N4) in a well-organized multilayer structure, the device achieved high efficiency, high flux, and excellent stability in dye wastewater treatment.

NANO RESEARCH (2021)

Article Materials Science, Multidisciplinary

Construction of S-scheme MnO2@CdS heterojunction with core-shell structure as H2-production photocatalyst

Syed Zulfiqar et al.

Summary: Artificial photosynthesis using MnO2@CdS hybrids demonstrates a higher H-2 evolution rate compared to pristine CdS, attributed to the S-scheme mechanism suppressing charge recombination and improving carrier separation. The rationally designed core-shell structure provides an intimate heterojunction interface, leading to enhanced photocatalytic H-2 generation. These findings provide new insight into the development of S-scheme heterostructures for efficient H-2 generation.

RARE METALS (2021)

Article Chemistry, Physical

Composition-dependent micro-structure and photocatalytic performance of g-C3N4 quantum dots@SnS2 heterojunction

Sheng-Qi Guo et al.

Summary: The study investigates the effect of composition ratio on the micro-structure and photocatalytic activity of semiconductor combinations using CNQD(n)@SnS2 heterojunction. Optimal composition results in efficient pollutant degradation, while excess composition hinders the separation of photo-induced charge carriers, reducing overall activity. This research provides insights for the rational design of highly active photocatalysts.

NANO RESEARCH (2021)

Article Chemistry, Physical

Van der Waals heterojunction for selective visible-light-driven photocatalytic CO2 reduction

Jun Li et al.

Summary: In this study, atomically thin carbon nitride (CN) coupled with Bi9O2.5S6 (BOS) nanoplates to form a 2D/2D Van der Waals heterojunction for CO2 photocatalytic reduction, achieving a high CO generation rate. The 2D/2D VDW heterojunction can adsorb CO* more strongly on BOS than CN, leading to hydrogenation before desorption and explaining the product selectivity.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Engineering, Environmental

Noble Metal-Free FeOOH/Li0.1WO3 Core-Shell Nanorods for Selective Oxidation of Methane to Methanol with Visible-NIR Light

Yi Zeng et al.

Summary: The study developed FeOOH/Li0.1WO3 core-shell nanorods to enhance the efficiency of photocatalytic conversion of methane to methanol. The introduction of lithium ions and the FeOOH-based Fenton-like reaction increased the generation of (OH)· radicals, leading to efficient formation of CH4OH under visible and near-infrared light.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Article Chemistry, Multidisciplinary

Interfacial Engineering of Bi19Br3S27 Nanowires Promotes Metallic Photocatalytic CO2 Reduction Activity under Near-Infrared Light Irradiation

Jun Li et al.

Summary: Developing a high-efficiency sulfur-based NIR photocatalyst, V-Bi19Br3S27, with significant NIR light response, for converting CO2 into CH3OH shows promising results for achieving carbon neutralization through photon reducing. This work introduces a unique interface engineering strategy and paves the way for efficiently utilizing solar radiation energy in the NIR range.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Materials Science, Multidisciplinary

Synergetic effects of Bi5+ and oxygen vacancies in Bismuth(V)-rich Bi4O7 nanosheets for enhanced near-infrared light driven photocatalysis

Jin Liu et al.

Summary: This study presents a near-infrared light driven Bi5+-rich Bi4O7 photocatalyst with significantly enhanced photocatalytic activity for pollutant removal. The formation of an intermediate band in the Bi4O7 structure improves optical absorption and carrier separation efficiency, while the presence of oxygen vacancies and Bi5+ accelerates the separation efficiency of photogenerated carriers.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2021)

Article Energy & Fuels

Single-Atom Pt Loaded Zinc Vacancies ZnO-ZnS Induced Type-V Electron Transport for Efficiency Photocatalytic H2 Evolution

Yujie Liu et al.

Summary: By constructing a ZnO-ZnS heterojunction with an excess amount of zinc vacancies, the separation efficiency of charge carriers can be improved; at the same time, zinc vacancies provide effective anchor sites for obtaining highly dispersed Pt single atom catalysts; the introduction of Pt single atoms promotes novel type-V electron transport and enhances photocatalytic performance.

SOLAR RRL (2021)

Article Materials Science, Multidisciplinary

Electronic properties and high-pressure behavior of wolframite-type CoWO4

Enrico Bandiello et al.

Summary: The study shows that wolframite-type CoWO4 is stable under high-pressure conditions and has a low band gap, making it suitable for photocatalysis applications. Interestingly, the band gap decreases monotonically upon compression, a phenomenon rarely observed in similar materials.

MATERIALS ADVANCES (2021)

Article Chemistry, Applied

S-scheme Sb2WO6/g-C3N4 photocatalysts with enhanced visible-light-induced photocatalytic NO oxidation performance

Yuyu Ren et al.

Summary: A novel S-scheme Sb2WO6/g-C3N4 nanocomposite was fabricated and showed excellent performance in photocatalytic ppb-level NO removal. The active species involved in the NO oxidation reaction were confirmed to be center dot O-2(-) and h(+), and the unique S-scheme structure enhanced the charge separation efficiency. The photocatalytic reaction pathway over the nanocomposite occurred via an oxygen-induced route, providing deeper insights into the mechanism of photocatalytic NO oxidation.

CHINESE JOURNAL OF CATALYSIS (2021)

Article Chemistry, Multidisciplinary

Surface Engineering of g-C3N4 by Stacked BiOBr Sheets Rich in Oxygen Vacancies for Boosting Photocatalytic Performance

Dongni Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Multidisciplinary

g-C3N4 Loading Black Phosphorus Quantum Dot for Efficient and Stable Photocatalytic H-2 Generation under Visible Light

Lingqiao Kong et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

Article Chemistry, Multidisciplinary

Optically Switchable Photocatalysis in Ultrathin Black Phosphorus Nanosheets

Hui Wang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Article Chemistry, Physical

Constructing Z-scheme based CoWO4/CdS photocatalysts with enhanced dye degradation and H2 generation performance

Haojie Cui et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Chemistry, Multidisciplinary

Vacancy-Rich Monolayer BiO2-x as a Highly Efficient UV, Visible, and Near-Infrared Responsive Photocatalyst

Jun Li et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Chemistry, Multidisciplinary

Universal Distance-Scaling of Nonradiative Energy Transfer to Graphene

L. Gaudreau et al.

NANO LETTERS (2013)

Article Chemistry, Physical

Quenching of fluorescence of aromatic molecules by graphene due to electron transfer

H. S. S. Ramakrishna Matte et al.

CHEMICAL PHYSICS LETTERS (2011)

Article Computer Science, Interdisciplinary Applications

QUICKSTEP: Fast and accurate density functional calculations using a mixed Gaussian and plane waves approach

J VandeVondele et al.

COMPUTER PHYSICS COMMUNICATIONS (2005)