Journal Article10.1021/ACSCATAL.5B02036
Constructing Anatase TiO2 Nanosheets with Exposed (001) Facets/Layered MoS2 Two-Dimensional Nanojunctions for Enhanced Solar Hydrogen Generation
Yong-Jun Yuan,Zhi-Jun Ye,Hongwei Lu,Bin Hu,Yong-Hui Li,Daqin Chen,Jiasong Zhong,Zhen-Tao Yu,Zhigang Zou +8 more
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TL;DR: In this paper, a feasible strategy of two-dimensional nanojuctions to enhance solar hydrogen generation of the MoS2/TiO2 system was demonstrated, and the 2D-2D MoS 2 /TiO 2 composite exhibits photocatalytic activity much higher than those of noble metal (such as Pt, Rh, Ru, Pd, and Au) loaded TiO2 photocatalyst, while the apparent quantum yield of hydrogen evolution system reached 6.4% at 360 nm.
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Abstract: Cocatalysts have been extensively used to accelerate the rate of hydrogen evolution in semiconductor-based photocatalytic systems, but the influence of interface state between semiconductor and cocatalyst has been rarely investigated. Here, we demonstrate a feasible strategy of two-dimensional (2D) nanojuctions to enhance solar hydrogen generation of the MoS2/TiO2 system. Loading of 2D MoS2 nanosheets on the surface of 2D anatase TiO2 nanosheets with exposed (001) facets greatly increases the interfacial contact. At an optimal ratio of 0.50 wt % MoS2, the 2D-2D MoS2/TiO2 photocatalyst shows the highest H2 evolution rate of 2145 μmol h–1 g–1, which is almost 36.4 times higher than that of pure TiO2 nanosheets. The apparent quantum yield of hydrogen evolution system reaches 6.4% at 360 nm. More importantly, the 2D-2D MoS2/TiO2 composite exhibits photocatalytic activity much higher than those of noble metal (such as Pt, Rh, Ru, Pd, and Au) loaded TiO2 photocatalysts. The decisive factor in improving the phot...
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Citations
Cu nanowires shelled with NiFe layered double hydroxide nanosheets as bifunctional electrocatalysts for overall water splitting
Luo Yu,Luo Yu,Haiqing Zhou,Jingying Sun,Fan Qin,Fang Yu,Jiming Bao,Ying Yu,Shuo Chen,Zhifeng Ren +9 more
TL;DR: In this paper, a facile and scalable approach to fabricate highly efficient three-dimensional (3D) bulk catalysts of core-shell nanostructures, in which few-layer NiFe layered double hydroxide (LDH) nanosheets are grown on Cu nanowire cores supported on Cu foams, toward overall water splitting.
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Role of Interfaces in Two-Dimensional Photocatalyst for Water Splitting
TL;DR: Recently, due to the attractive properties such as appropriate band structure, ultrahigh specific surface area, and more exposed active sites, two-dimensional (2D) photocatalysts have attracted significant attention as discussed by the authors.
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Photocatalytic hydrogen production using metal doped TiO2: A review of recent advances
TL;DR: In this paper, the basic principles, photocatalytic-reactor design, kinetics, key findings, and the mechanism of metal-doped TiO2 are comprehensively reviewed.
853
Hybrids of Two-Dimensional Ti3C2 and TiO2 Exposing {001} Facets toward Enhanced Photocatalytic Activity
TL;DR: The improved charge separation and exposed active facets dramatically boost the photocatalytic degradation of methyl orange dye, showing the promise of 2D transition metal carbide for fabricating functional catalytic materials.
756
Liquid exfoliation of g-C3N4 nanosheets to construct 2D-2D MoS2/g-C3N4 photocatalyst for enhanced photocatalytic H2 production activity
Yong-Jun Yuan,Zhi-Kai Shen,Shiting Wu,Yibing Su,Lang Pei,Zhenguo Ji,Mingye Ding,Wangfeng Bai,Yifan Chen,Yifan Chen,Zhen-Tao Yu,Zhigang Zou,Zhigang Zou +12 more
TL;DR: In this paper, the 2D-2D MoS2/g-C3N4 photocatalyst containing 0.75% MoS 2 showed the highest H2 evolution rate of 1155 μmol·h−1·g−1 with an apparent quantum yield of 6.8% at 420 nm monochromatic light.
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TL;DR: The mechanochemical synthesis of MoS2-TiO2 composite photocatalysts is a simple and efficient method for H2 evolution. The composite exhibits high photocatalytic activity and stable performance. The electronic interaction between TiO2 and MoS2 enhances charge separation and improves the overall photocatalytic performance.
Photocatalytic H2 evolution on MoS2–TiO2 catalysts synthesized via mechanochemistry
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