4.5 Article

Z-Scheme Strategy in Polymeric Graphitic C3N5/CdS Core-Shell Heterojunction Drives Long-Lived Carriers Separation for Robust Visible-Light Hydrogen Production

Related references

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

Spatial Separation of Cocatalysts on Z-Scheme Organic/Inorganic Heterostructure Hollow Spheres for Enhanced Photocatalytic H2 Evolution and In-Depth Analysis of the Charge-Transfer Mechanism

Hyun Sik Moon et al.

Summary: A Z-scheme heterojunction with spatially separated cocatalysts is proposed for efficient photocatalytic water splitting. The study demonstrates that the combination of a Z-scheme heterojunction and spatially separated cocatalysts can enhance surface charge separation and reaction kinetics, leading to high-performance photocatalytic platforms for solar fuel production.

ADVANCED MATERIALS (2023)

Article Chemistry, Physical

Biomimetic nitrogen-rich photocatalyst based on cadmium sulfide for photocatalytic hydrogen evolution

Junming Shi et al.

Summary: A novel N-rich sugarcane-like photocatalyst CCN3 demonstrates high H2 evolution ability and anti-photocorrosive performance due to its N-rich composition and unique structure.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Engineering, Environmental

Designing and fabricating a CdS QDs/Bi2MoO6 monolayer S-scheme heterojunction for highly efficient photocatalytic C2H4 degradation under visible light

Xinyue Xu et al.

Summary: The study conducted density functional theory calculations to predict the formation of an S-scheme heterojunction in the CdS quantum dots/Bi2MoO6 monolayer system. The novel S-scheme system showed high-efficiency photocatalytic degradation rate towards C2H4 under visible light, providing strong evidence for the S-scheme charge transfer path through in-situ XPS, PL, TRPL and EPR.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Electrical & Electronic

In situ solvothermal method of C3N5@NH2-MIL-125 composites with enhanced visible-light photocatalytic performance

Xiaokang He et al.

Summary: The composites of C3N5@NH2-MIL-125-x were successfully prepared to enhance visible-light photocatalytic performance, with C3N5@NH2-MIL-125-3 showing the best degradation efficiency for Rhodamine B. The active species capture experiments confirmed the primary role of -O-2(-) radicals in the photocatalytic process.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2022)

Article Engineering, Environmental

S doped Ta2O5 decorated CdS nanosphere via interfacial diffusion for enhanced and stable photocatalytic hydrogen production

Hui Liu et al.

Summary: In this study, S doped Ta2O5 decorated CdS nanosphere was synthesized and showed improved photocatalytic hydrogen generation rate and stability under visible light irradiation.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Hollow carbon nanospheres@graphitic C3N5 heterostructures for enhanced oxygen electroreduction

Qi Li et al.

Summary: This paper presents a template-based strategy to fabricate a catalyst with enhanced ORR activity by creating a 3D heterojunction of hollow carbon nanospheres and graphitic C3N5. The conductive heterojunction between g-C3N5 and HCNs facilitates fast electron/charge transports, leading to improved O-2 activation and intermediate reaction product desorption. Calculations using density functional theory reveal that the built-in electronic field at the heterojunction reduces the O-2 activation energy and enhances the ORR activity by lowering charge transfer resistance.

APPLIED SURFACE SCIENCE (2022)

Article Engineering, Environmental

Boron doped C3N5 for photocatalytic nitrogen fixation to ammonia: The key role of boron in nitrogen activation and mechanism

Kang Li et al.

Summary: Compared to g-C3N4, g-C3N5 can efficiently utilize visible light and extend the lifetime of photogenerated carriers, leading to enhanced NH3 production. A boron-doped g-C3N5 catalyst (B-C3N5) was synthesized via a simple one-step calcination method for photocatalytic nitrogen fixation. B-C3N5 demonstrated significantly improved NH3 yield with a rate of 421.18 mu mol h(-1) g(-1). Raman and ESR analysis indicated that B tended to occupy the C vacancies in C3N5, thereby enhancing the charge transfer capability and optimizing the band structure of B-C3N5. The B sites exhibited excellent performance in N-2 adsorption and activation, leading to NH3 generation. In-situ DRIFTS was used to identify the intermediates of the NRR process, and a reaction mechanism was proposed to elucidate the role of B -O -H during N-2 adsorption, activation, and reduction.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Construction of rGO-coupled C3N4/C3N5 2D/2D Z-scheme heterojunction to accelerate charge separation for efficient visible light H2 evolution

Dong Liu et al.

Summary: A novel N-rich carbon nitride material C3N5 was designed and prepared in this study, which formed a sandwich heterojunction with C3N4, demonstrating a synergistic effect of electron-rich and hole-rich reservoirs. The 2D/2D heterojunction was applied to achieve efficient visible-light-responsive activity for H2 evolution reaction.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Enhanced durability of nitric oxide removal on TiO2 (P25) under visible light: Enabled by the direct Z-scheme mechanism and enhanced structure defects through coupling with C3N5

Junlei Zhang et al.

Summary: A direct Z-scheme catalyst of TiO2(P25)-C3N5 with enhanced structural defects was designed, which showed excellent activity and durability in NO photooxidation under visible light. The main products of NO photooxidation in the system involving TiO2-C3N5 were identified as NO2 and NO3. Moreover, TiO2-C3N5 exhibited better activity and durability for NO photooxidation under higher relative humidity compared to P25 and C3N5.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Environmental Sciences

In situ synthesis of Ag3PO4/C3N5 Z-scheme heterojunctions with enhanced visible-light-responsive photocatalytic performance for antibiotics removal

Hongfei Yin et al.

Summary: The study focused on Ag3PO4/C3N5 nanocomposites with Z-scheme band alignment for the removal of tetracycline hydrochloride. It was found that these nanocomposites exhibited superior photocatalytic activity and photochemical stability, while the performance did not increase with the increasing amount of Ag3PO4. The Z-scheme heterojunctions formed between Ag3PO4 and C3N5 were identified as the main reason for the enhanced photocatalytic activities.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Chemistry, Physical

Sulfur-Deficient ZnIn2S4/Oxygen-Deficient WO3 Hybrids with Carbon Layer Bridges as a Novel Photothermal/Photocatalytic Integrated System for Z-Scheme Overall Water Splitting

Yijin Wang et al.

Summary: This study achieved an integrative photothermal-photocatalytic Z-scheme overall water splitting reaction system by designing a novel photocatalyst material and constructing a whole reaction system, which improved the photocatalytic efficiency. The ZIS-WO hybrid with sulfur and oxygen vacancies promoted light absorption and charge separation, while the C-wood utilized the photothermal effect to transform the triphase system, reducing carrier recombination and lowering the reaction barrier.

ADVANCED ENERGY MATERIALS (2021)

Article Engineering, Environmental

Integrating Mo2Bx (x=1, 4) with CdS for efficient photocatalytic hydrogen production

Xiangyu Meng et al.

Summary: Molybdenum based compounds, such as MoCx, MoSe2, MoS2 MoPx, MoOx and their derivatives, have been considered as alternative catalysts to platinum in hydrogen evolution reactions. Mo2Bx (x = 1 or 4) has been investigated for the first time as active components in a visible-light driven photocatalytic hydrogen production system, showing excellent hydrogen evolution activities. The electron deficient atom boron (B) content in Mo2Bx samples affects their photocatalytic activities, with Mo B-2(4) exhibiting better activity than Mo2B due to differences in electron transfer rates.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Experimental and DFT insights into the visible-light driving metal-free C3N5 activated persulfate system for efficient water purification

Junlei Zhang et al.

Summary: In this study, metal-free C3N5 was synthesized and used as an activator for PMS activation, exhibiting excellent degradation performance for EMs and water disinfection under visible light. This research provides a new environmentally-friendly option for efficient water purification through advanced oxidation processes.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Enhancement in the photocatalytic H2 production activity of CdS NRs by Ag2S and NiS dual cocatalysts

Bowen He et al.

Summary: The study synthesized a hybrid catalyst CdS/Ag2S/NiS, which significantly increased the hydrogen production rate due to the accelerated charge transfer and reduced electron-hole pair recombination facilitated by the Schottky junction and p-n junction between CdS, Ag2S, and NiS.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Multidisciplinary

Molten-Salt-Mediated Synthesis of an Atomic Nickel Co-catalyst on TiO2 for Improved Photocatalytic H2 Evolution

Mu Xiao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Physical

Co-doped Mo-Mo2C cocatalyst for enhanced g-C3N4 photocatalytic H-2 evolution

Yaru Zheng et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2020)

Article Chemistry, Multidisciplinary

Ultrathin ZnIn2S4 Nanosheets Anchored on Ti3C2TX MXene for Photocatalytic H2 Evolution

Gancheng Zuo et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Physical

Highly active novel CeTi2O6/g-C3N5 photocatalyst with extended spectral response towards removal of endocrine disruptor 2, 4-dichlorophenol in aqueous medium

S. Vadivel et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2020)

Article Multidisciplinary Sciences

Visible-light-driven amino acids production from biomass-based feedstocks over ultrathin CdS nanosheets

Song Song et al.

NATURE COMMUNICATIONS (2020)

Article Chemistry, Multidisciplinary

2D Porous N-Deficient g-C3N4 Nanosheet Decorated with CdS Nanoparticles for Enhanced Visible-Light-Driven Photocatalysis

Hui Liu et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

Article Chemistry, Multidisciplinary

Polymeric Carbon Nitride/Reduced Graphene Oxide/Fe2O3: All-Solid-State Z-Scheme System for Photocatalytic Overall Water Splitting

Zhiming Pan et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Multidisciplinary

Spectroscopic Evidence for the Contribution of Holes to the Bleach of Cd-Chalcogenide Quantum Dots

Gianluca Grimaldi et al.

NANO LETTERS (2019)

Article Chemistry, Multidisciplinary

Edge-Enriched Ultrathin MoS2 Embedded Yolk-Shell TiO2 with Boosted Charge Transfer for Superior Photocatalytic H2 Evolution

Wenchao Wang et al.

ADVANCED FUNCTIONAL MATERIALS (2019)

Article Chemistry, Multidisciplinary

A Mesoporous Rod-like g-C3N5 Synthesized by Salt-Guided Strategy: As a Superior Photocatalyst for Degradation of Organic Pollutant

Haiyan Wang et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

Article Chemistry, Physical

Construction of CdS/CoOx core-shell nanorods for efficient photocatalytic H-2 evolution

Ye Liu et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2018)

Article Chemistry, Physical

Probing conducting polymers@cadmium sulfide core-shell nanorods for highly improved photocatalytic hydrogen production

Chao Wang et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2018)

Article Chemistry, Multidisciplinary

Ordered Mesoporous C3N5 with a Combined Triazole and Triazine Framework and Its Graphene Hybrids for the Oxygen Reduction Reaction (ORR)

In Young Kim et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Nanoscience & Nanotechnology

Efficient Visible-Light Photocatalytic Hydrogen Evolution and Enhanced Photostability of Core/Shell CdS/g-C3N4 Nanowires

Jiye Zhang et al.

ACS APPLIED MATERIALS & INTERFACES (2013)

Article Multidisciplinary Sciences

Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4

Rengui Li et al.

NATURE COMMUNICATIONS (2013)

Article Chemistry, Multidisciplinary

Carbon self-doping induced high electronic conductivity and photoreactivity of g-C3N4

Guohui Dong et al.

CHEMICAL COMMUNICATIONS (2012)