Hierarchical ZnIn2S4: A promising cocatalyst to boost visible-light-driven photocatalytic hydrogen evolution of In(OH)3
TL;DR: In this paper, a 3D hierarchical core-shell-like ZnIn2S4@In(OH)3 microspheres have been fabricated by a facile hydrothermal method via controlling the sulfur source.
About: This article is published in International Journal of Hydrogen Energy.The article was published on 2019-03-01. It has received 39 citations till now. The article focuses on the topics: Photocatalysis.
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02 Sep 2021
105 citations
TL;DR: In this article, an efficient core-shell p-n heterojunction of ZnIn2S was proposed for improving the activity of photocatalytic hydrogen evolution, which is crucial for photoexcited electrons and holes.
Abstract: The efficient separation of photoexcited electrons and holes is crucial for improving the activity of photocatalytic hydrogen evolution. Herein, an efficient core–shell p–n heterojunction of ZnIn2S...
99 citations
TL;DR: In this paper, the synergistic regulations of both structural and electronic benefits were discovered by introducing sulfur vacancies in a 1T-MoS2 nanosheets host to prompt the transformation of the surrounding 1T -MoS 2 local lattice into a 2H phase, leading to the dramatically enhanced PHE activity.
Abstract: Photocatalytic hydrogen evolution (PHE) is of great significance to pursue sustainable and clean fuel, however, it remains a great challenge due to the high recombination of photo-generated carriers and low efficiency of surface catalytic activity. Here, we discover the synergistic regulations of both structural and electronic benefits by introducing sulfur vacancies in a 1T-MoS2 nanosheets host to prompt the transformation of the surrounding 1T-MoS2 local lattice into a 2H phase, leading to the dramatically enhanced PHE activity. Multiple in situ spectroscopic and microscopic characterizations combined with theoretical calculations demonstrated that in-plane sulfur vacancies as active sites can activate the proton, while the 2H@1T-MoS2 phase-incorporation can effectively regulate the electronic structure and further improve the conductivity. Therefore, the optimized ZnIn2S4@MoS2 photocatalyst achieves a high PHE activity of 23,233 μmol g−1 with an apparent quantum yield (AQY) of ∼5.09 %. This work provides a new design for improving the photocatalytic activity by synergistically structural and electronic modulations.
60 citations
TL;DR: In this paper, the ternary ZnIn2S4-rGO-CuInS2 system showed enhanced photocatalytic H2 production compared to pure N2S/Na2SO3−water mixture.
37 citations
TL;DR: In this article, a series of MnxCd1-xS solid solutions as efficient photocatalysts for hydrogen evolution with visible light response were synthesized via a co-precipitation method.
36 citations
References
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TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Abstract: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent Many oxides consisting of metal cations with d0 and d10 configurations, metal (oxy)sulfide and metal (oxy)nitride photocatalysts have been reported, especially during the latest decade The fruitful photocatalyst library gives important information on factors affecting photocatalytic performances and design of new materials Photocatalytic water splitting and H2 evolution using abundant compounds as electron donors are expected to contribute to construction of a clean and simple system for solar hydrogen production, and a solution of global energy and environmental issues in the future (361 references)
8,850 citations
TL;DR: Approaches to Modifying the Electronic Band Structure for Visible-Light Harvesting and its Applications d0 Metal Oxide Photocatalysts 6518 4.4.1.
Abstract: 2.3. Evaluation of Photocatalytic Water Splitting 6507 2.3.1. Photocatalytic Activity 6507 2.3.2. Photocatalytic Stability 6507 3. UV-Active Photocatalysts for Water Splitting 6507 3.1. d0 Metal Oxide Photocatalyts 6507 3.1.1. Ti-, Zr-Based Oxides 6507 3.1.2. Nb-, Ta-Based Oxides 6514 3.1.3. W-, Mo-Based Oxides 6517 3.1.4. Other d0 Metal Oxides 6518 3.2. d10 Metal Oxide Photocatalyts 6518 3.3. f0 Metal Oxide Photocatalysts 6518 3.4. Nonoxide Photocatalysts 6518 4. Approaches to Modifying the Electronic Band Structure for Visible-Light Harvesting 6519
6,332 citations
TL;DR: Generations Yi Ma,† Xiuli Wang,† Yushuai Jia,† Xiaobo Chen,‡ Hongxian Han,*,† and Can Li*,†
Abstract: Generations Yi Ma,† Xiuli Wang,† Yushuai Jia,† Xiaobo Chen,‡ Hongxian Han,*,† and Can Li*,† †State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy, 457 Zhongshan Road, Dalian 116023, China ‡Department of Chemistry, College of Arts and Sciences, University of Missouri-Kansas City, 5100 Rockhill Road, Kansas City, Missouri 64110, United States
1,990 citations
TL;DR: A review of the known inorganic catalysts with a focus on structure-activity relationships is given in this article, where the first water splitting system based on TiO2 and Pt was proposed by Fujishima and Honda in 1972.
Abstract: Photochemical splitting of water into H2 and O2 using solar energy is a process of great economic and environmental interest. Since the discovery of the first water splitting system based on TiO2 and Pt in 1972 by Fujishima and Honda, over 130 inorganic materials have been discovered as catalysts for this reaction. This review discusses the known inorganic catalysts with a focus on structure–activity relationships.
1,977 citations
TL;DR: The fundamental properties and synthesis methods of core/shell and core/multiple shell structures of II- VI, IV-VI, and III-V semiconductors are discussed.
Abstract: Colloidal core/shell nanocrystals contain at least two semiconductor materials in an onionlike structure. The possibility to tune the basic optical properties of the core nanocrystals, for example, their fluorescence wavelength, quantum yield, and lifetime, by growing an epitaxial-type shell of another semiconductor has fueled significant progress on the chemical synthesis of these systems. In such core/shell nanocrystals, the shell provides a physical barrier between the optically active core and the surrounding medium, thus making the nanocrystals less sensitive to environmental changes, surface chemistry, and photo-oxidation. The shell further provides an efficient passivation of the surface trap states, giving rise to a strongly enhanced fluorescence quantum yield. This effect is a fundamental prerequisite for the use of nanocrystals in applications such as biological labeling and light-emitting devices, which rely on their emission properties. Focusing on recent advances, this Review discusses the fundamental properties and synthesis methods of core/shell and core/multiple shell structures of II-VI, IV-VI, and III-V semiconductors.
1,806 citations