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Zicong Jiang et al.
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Jianjun Zhang et al.
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Chadawan Khamdang et al.
Summary: In this study, a design of a 2D/2D g-C3N4/ZnO heterostructure was proposed to achieve an S-scheme heterojunction, resulting in enhanced photocatalytic activity and sunlight utilization. The heterostructure effectively separates electrons and holes, leading to improved photocatalytic activity, and has great potential for applications.
ACS APPLIED ENERGY MATERIALS
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Review
Materials Science, Multidisciplinary
Xianglin Xiang et al.
Summary: This review highlights the excellent performance of cadmium chalcogenide quantum dots (CdX QDs) as photocatalysts, including their visible light absorption ability and efficient charge separation properties. The atomic and electronic structures, synthetic strategies, and reaction mechanism of CdX QDs in photocatalytic solar-to-fuel conversion are discussed. The optimization strategies for improving the photocatalytic performance of CdX QDs are also addressed. Lastly, the challenges and perspectives on CdX QDs are briefly proposed.
ADVANCED PHOTONICS RESEARCH
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Review
Materials Science, Multidisciplinary
Linxi Wang et al.
Summary: S-scheme heterojunctions are widely used in photocatalytic CO2 reduction to separate photogenerated carriers and maximize the redox powers of photocatalysts. Various popular photocatalysts, such as metal oxides, metal chalcogenides, graphitic carbon nitrides, and bismuth oxyhalides, have been used to construct S-scheme heterojunctions and improve CO2 reduction performance.
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Zhongliao Wang et al.
Summary: Reducing CO2 to hydrocarbon fuels through solar irradiation is a promising approach for mitigating CO2 emissions and resource depletion. However, the catalytic performance is hindered by severe charge recombination and high energy barrier. In this study, a 2D/2D Bi2MoO6/BiOI composite was fabricated to enhance CO2 photoreduction efficiency. The composite showed efficient charge transfer, strong redox capability, and effective charge separation. The intermediates of CO2 photoreduction were identified, and the rate-determining step for CH4 and CO production was determined to be CO2 hydrogenation. Introduction of Bi2MoO6 decreased the energy barrier for CO2 photoreduction on BiOI. The study highlights the synergistic effect of the S-scheme heterojunction and van der Waals heterojunction in the 2D/2D composite.
CHINESE JOURNAL OF CATALYSIS
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Linlin Sun et al.
Summary: This study successfully addresses the issues of inadequate accessible active sites and inhibited electron separation efficiency by constructing a novel S-scheme heterojunction. The unique structure provides more active sites and maintains multiple light transmission channels, resulting in improved capture and conversion of solar energy.
JOURNAL OF MATERIALS CHEMISTRY A
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Fahim A. Qaraah et al.
Summary: Constructing a suitable heterojunction photocatalytic system is an efficient approach for designing highly efficient photocatalysts. The step-scheme heterostructure system (S-scheme) has received widespread attention due to its ability to achieve efficient photogenerated carrier separation and strong photo-redox ability. In this study, a novel S-scheme heterojunction system consisting of 2D O-doped g-C3N4 nanosheets and 3D N-doped Nb2O5/C nanoflowers was constructed for the photocatalytic degradation of Rhodamine B (RhB). The fabricated material showed excellent photocatalytic efficiency and stability under visible-light illumination, which can be attributed to fast charge transfer, highly-efficient charge separation, and extended lifetime of photoinduced charge carriers.
CHINESE JOURNAL OF CATALYSIS
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Article
Chemistry, Applied
Mengyu Zhao et al.
Summary: In-plane epitaxial growth of ZnIn2S4 nanosheets on the surface of hexagonal phase WO3 nanorods was achieved, forming a unique 3D heterostructure. The heterostructure not only enlarged the specific surface area, but also improved the light harvesting ability, resulting in significantly enhanced photocatalytic hydrogen evolution.
CHINESE JOURNAL OF CATALYSIS
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Article
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Lele Wang et al.
Summary: The construction of multi-channels of photo-carrier migration in photocatalysts is crucial for enhancing the conversion efficiency of solar energy. In this study, a ternary ZnIn2S4/g-C3N4/Ti3C2 MXene hybrid with an S-scheme junction integrated Schottky-junction was fabricated. The hybrid material exhibited a unique 2D/2D/2D sandwich-like structure, which promoted carrier migration through the intimate large interface. The photocatalytic performance of the hybrid material was significantly improved due to the dual transfer channels of photogenerated carriers. This work provides insights into the rational construction of multi-electron pathways in catalytic systems.
CHINESE JOURNAL OF CATALYSIS
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Article
Chemistry, Multidisciplinary
Qingling Huang et al.
Summary: A highly efficient S-scheme heterojunction photocatalyst has been developed to simultaneously remove heavy metals and antibiotics in wastewater, showing better photocatalytic activities than most reported photocatalysts. This study provides a profound understanding and guidance for constructing efficient photocatalysts for the synchronous removal of heavy metals and organic contaminants.
ENVIRONMENTAL SCIENCE-NANO
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Review
Chemistry, Physical
Siying Zhu et al.
Summary: Due to the rapid development of scientific technology, there is an increasing demand for energy storage equipment in modern society. Lithium-ion batteries (LIBs) have been widely used in various fields due to their high energy density, high power density, long lifespan, low self-discharge rate, wide operating temperature range, and environmental friendliness. However, with the rapid development in various technological fields, the demand for batteries with higher energy densities has been increasing. SiO-based anode materials have attracted attention as a potential solution, but they face challenges such as severe volume change and low electrical conductivity. This review introduces recent research on SiO performance optimization and discusses structural and interfacial modification strategies.
ACTA PHYSICO-CHIMICA SINICA
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Article
Chemistry, Physical
Shuang Cao et al.
Summary: Researchers developed a noble-metal-free photocatalyst with an S-scheme heterojunction structure, which demonstrated strong redox ability and achieved efficient hydrogen production under solar irradiation. The catalyst outperformed most noble metal-based photocatalysts in terms of hydrogen evolution activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Materials Science, Multidisciplinary
Tianxi Zhang et al.
Summary: Photocatalytic technology, using abundant solar energy, shows great potential in mitigating the current energy crisis and environmental remediation. ZnIn2S4, as an emerging photocatalyst, has attracted much attention due to its non-toxicity, suitable bandgap structure, strong visible light absorption, and excellent catalytic activity. This review summarizes the recent advances and future perspectives of ZnIn2S4-based photocatalysts, focusing on the modification strategies to enhance their photocatalytic activity.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Review
Chemistry, Physical
Valerie Bei-Yuan Oh et al.
Summary: This review discusses the limitations and modification strategies of ZnIn2S4 as a semiconductor photocatalyst, as well as its performance in hydrogen evolution, overall water splitting, and CO2 reduction reactions. This is of great significance for promoting the sustainable utilization of renewable fuels.
Article
Chemistry, Applied
Wenhua Xue et al.
Summary: In this work, a novel plasmon-assisted UV-vis-NIR-driven W18O49/Cd0.5Zn0.5S heterostructure photocatalyst with extraordinary H-2 evolution activity was obtained. The investigation reveals that the unique Step-scheme charge transfer and the 'hot electron' injection are responsible for the extraordinary H-2 evolution process, depending on the wavelength of the incident light. Moreover, by accelerating the surface reaction kinetics, the activity can be further elevated, accompanied by a high apparent quantum yield.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Applied
Jinmao Li et al.
Summary: A novel 1D/2D TiO2/ZnIn2S4 heterostructure was designed to address the limitations of TiO2 photocatalyst and achieved significant improvement in photocatalytic hydrogen evolution.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Juhua Zhang et al.
Summary: A novel ternary S-scheme heterojunction photocatalyst was fabricated by embedding Au nanoparticles on the surface of ZnIn2S4/NaTaO3 composites, showing enhanced photocatalytic performance in hydrogen evolution. This innovative work may contribute to modifying sodium tantalate for efficient photocatalytic hydrogen generation applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Hind Alshaikh et al.
Summary: The mesoporous Ag3VO4/C3N4 photocatalysts exhibited significantly higher photocatalytic Hg(II) reduction performance compared to pristine g-C3N4 and Ag3VO4 NPs. The synthetic mesoporous 2.4%Ag3VO4/C3N4 photocatalyst showed the best photoreduction performance among all the synthesized nanocomposites. Through the synergetic effect of S-scheme heterojunction structure, high surface area, and promotion light harvest, the mesoporous Ag3VO4/C3N4 photocatalysts achieved efficient photoinduced charges separation to enhance Hg(II) reduction.
SEPARATION AND PURIFICATION TECHNOLOGY
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Article
Nanoscience & Nanotechnology
Cao Chen et al.
Summary: An ambient-stable and effective 2D/2D heterostructure of BP/bismuth tungstate (Bi2WO6) with oxygen vacancy is designed for syngas production via photocatalytic CO2 reduction, resolving the stability problem of BP nanosheets and greatly improving charge transfer efficiency. This work achieves high generation rates of CO and H2, along with desirable CO/H2 ratios for industrial applications, making it an efficient and ambient-stable BP-based photocatalyst for syngas production by CO2 reduction at mild conditions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Vasudha Hasija et al.
Summary: The article discusses the mechanism and advantages of S-scheme photocatalysts in improving the efficiency of photoelectric conversion by introducing the separation and recombination of photogenerated electron-hole pairs, as well as relevant experimental and theoretical research methods. The S-scheme heterojunctions show promise for achieving highly efficient photocatalysis by optimizing factors such as co-catalyst loading, bandgap tuning, and interfacial optimization.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Parnapalle Ravi et al.
Summary: The thermodynamically controlled synthesis of dendritic fractals and nanorods via hydrothermal reaction demonstrated extensive photocatalytic hydrogen production. By forming an S-scheme heterojunction with CdSe, Cu3P significantly enhanced the photoactivity and stability of the composite, resulting in a higher rate of H-2 production under visible light. The physicochemical properties of the prepared materials were characterized by various analysis techniques, and the working mechanism of the efficient photocatalyst construction was proposed based on material characterization and photocatalytic activity results.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yamin Xi et al.
Summary: Constructing a step-scheme (S-scheme) heterojunction is a promising route to improve photocatalytic activities by manipulating charge transfer and separation, with interfacial facet engineering playing a crucial role in enhancing the efficiency of separation behaviors for powerful redox reactions. The directionality of migration and recombination of charge carriers is greatly accelerated by a stronger built-in electric field and band bending around the interface, leading to more efficient spatial separation for participating in overall redox reactions. It demonstrates significant superiority in photocatalytic H-2 evolution and provides new insights into the rational construction of S-scheme photocatalysts based on interfacial facet design and internal electric field regulation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Seyed Majid Ghoreishian et al.
Summary: The study successfully developed a ternary heterostructure photocatalyst using a hydrothermal approach, in which the optimal composition of CdS and RGO showed excellent photo-reduction of Cr(VI) under simulated solar-light irradiation. The enhanced photocatalytic activity of the ternary composite was mainly attributed to the formation of heterostructure, synergistic behavior, efficient interfacial charge transfer, and full-spectrum light absorption.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Materials Science, Multidisciplinary
Jie Wang et al.
Summary: ZnIn2S4, as a promising photocatalytic material, with its wide light absorption range and tunable bandgap, has been widely applied in various fields in recent years. This review introduces the crystal structures, preparation methods, and applications of ZnIn2S4 in photocatalytic systems.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Benaissa et al.
Summary: In this study, a novel BiVO3/g-C3N4 heterojunction nanoparticles were utilized for photodegradation of amaranth dye and efficient hydrogen gas evolution. The synthesis of g-C3N4 nanosheets through thermal decomposition of urea and deposition of BiVO3 nanoparticles on g-C3N4 surface were achieved under ultrasonic irradiation. The nanocomposite with 10 wt% BiVO3 exhibited superior stability and remarkable photocatalytic efficiency for dye degradation and hydrogen evolution.
Review
Chemistry, Physical
Yang Xia et al.
Summary: Single-atom photocatalysts, with isolated metal atoms anchored on semiconductor supports, exhibit outstanding catalytic activity and maximum atom utilization efficiency, making them suitable for various photocatalytic reactions. Recent research has focused on their properties, geometric structures, synthetic strategies, characterization techniques, and photocatalytic applications.
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Chemistry, Physical
Lulu Gao et al.
Summary: In this study, a tungsten carbide-molybdenum carbide (WC-Mo2C) heterojunction was constructed to enhance the hydrogen-production performance of TiO2. By introducing WC with high electrical conductivity into Mo2C, the Mo-H bond was weakened, resulting in significantly improved H2 production rate when decorating the WC-Mo2C@C heterojunction on a TiO2 surface.
CATALYSIS SCIENCE & TECHNOLOGY
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Chemistry, Multidisciplinary
Quanlong Xu et al.
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Junwei Fu et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
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Minhua Ai et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
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ACS APPLIED MATERIALS & INTERFACES
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Amarajothi Dhakshinamoorthy et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
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Jun Di et al.
JOURNAL OF MATERIALS CHEMISTRY A
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Hongjun Dong et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
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Ryu Abe et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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Yasuyoshi Sasaki et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2013)
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Davide Barreca et al.
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Cissillia Young et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2008)
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Hiroaki Tada et al.
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K Sayama et al.
CHEMICAL COMMUNICATIONS
(2001)
