Journal ArticleDOI
Photocatalytic hydrogen production using metal doped TiO2: A review of recent advances
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TLDR
In this paper, the basic principles, photocatalytic-reactor design, kinetics, key findings, and the mechanism of metal-doped TiO2 are comprehensively reviewed.Abstract:
Hydrogen (H2) production via photocatalytic water splitting is one of the most promising technologies for clean solar energy conversion to emerge in recent decades. The achievement of energy production from water splitting would mean that we could use water as a fuel for future energy need. Among the various photocatalytic materials, titanium dioxide (TiO2) is the dominant and most widely studied because of its exceptional physico-chemical characteristics. Surface decoration of metal/non-metal on TiO2 nanoparticles is an outstanding technique to revamp its electronic properties and enrich the H2 production efficiency. Metal dopants play a vital role in separation of electron-hole pairs on the TiO2 surface during UV/visible/simulated solar light irradiation. In this paper, the basic principles, photocatalytic-reactor design, kinetics, key findings, and the mechanism of metal-doped TiO2 are comprehensively reviewed. We found that Langmuir-Hinshelwood kinetic model is commonly employed by the researchers to demonstrate the rate of H2 production. Copper (Cu), gold (Au) and platinum (Pt) are the most widely studied dopants for TiO2, owing to their superior work function. The metal dopants can amplify the H2 production efficiency of TiO2 through Schottky barrier formation, surface plasmon resonance (SPR), generation of gap states by interaction with TiO2 VB states. The recent advances and important consequences of 2D materials, perovskites, and other novel photocatalysts for H2 generation have also been reviewed.read more
Citations
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Journal ArticleDOI
g-C3N4/carbon dot-based nanocomposites serve as efficacious photocatalysts for environmental purification and energy generation: A review
TL;DR: In this article, a review highlights the applied protocols to ameliorate the photoactivity of graphitic carbon nitride (g-C3N4) based nanocomposites through combining with various materials.
Journal ArticleDOI
2D Nanomaterials for Photocatalytic Hydrogen Production
Priyanka Ganguly,Moussab Harb,Zhen Cao,Luigi Cavallo,Ailish Breen,Saoirse Dervin,Dionysios D. Dionysiou,Suresh C. Pillai +7 more
TL;DR: The photocatalytic water splitting technique is a promising alternative to produce hydrogen using a facile and proficient method as discussed by the authors, and it has been shown to be an effective alternative to conventional water splitting.
Journal ArticleDOI
Photocatalytic Hydrogen Production: Role of Sacrificial Reagents on the Activity of Oxide, Carbon, and Sulfide Catalysts
Vignesh Kumaravel,Muhammad Danyal Imam,Ahmed Badreldin,Rama Krishna Chava,Jeong Yeon Do,Misook Kang,Ahmed Abdel-Wahab +6 more
TL;DR: In this article, the authors evaluated the performance of three promising photocatalysts (titania (TiO2-P25), graphitic carbon nitride (g-C3N4), and cadmium sulfide (CdS)) using various sacrificial agents.
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Optical Properties and Applications of Plasmonic-Metal Nanoparticles
TL;DR: In this paper, the potential of plasmonic nanoparticles based on their optical properties (e.g., light absorption, scattering, and field enhancement) for developing different applications (biomedical, energy and information technologies).
Journal ArticleDOI
Atomic-Level Charge Separation Strategies in Semiconductor-Based Photocatalysts.
TL;DR: In this paper, the advances on atomic-level charge separation strategies toward developing robust photocatalysts are highlighted, elucidating the fundamentals of charge separation and transfer processes and advanced probing techniques.
References
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Journal ArticleDOI
Kinetic Coupling of Water Splitting and Photoreforming on SrTiO3-Based Photocatalysts
Kai E. Sanwald,Tobias F. Berto,Andreas Jentys,Donald M. Camaioni,Oliver Y. Gutiérrez,Johannes A. Lercher,Johannes A. Lercher +6 more
TL;DR: In the absence of the back-reaction to water, the H2 evolution rates are independent of the oxygenate type and concentration, because the rates of water splitting compensate the variations in the rate of oxygenate conversion as mentioned in this paper.
Journal ArticleDOI
Highly efficient visible-light driven photocatalytic hydrogen production from a novel Z-scheme Er3+:YAlO3/Ta2O5-V5+||Fe3+-TiO2/Au coated composite
TL;DR: In this article, the preparation of a novel Z-scheme photocatalyst, Er3+:YAlO3/Ta2O5-V5+||Fe3+-TiO2/Au coated composite, for visible-light photocatalytic hydrogen production is reported for the first time.
Journal ArticleDOI
Plasmon-enhanced photocatalytic hydrogen production over visible-light responsive Cu/TiO2
TL;DR: The Cu/TiO2 exhibited a good performance of water-splitting hydrogen production under visible light in the presence of glycerol as a hole scavenger but the visible-light responsive photocatalytic properties dramatically and rapidly decreased when exposed to air.
Journal ArticleDOI
Photocatalytic Hydrogen Evolution by Flexible Graphene Composites Decorated with Ni(OH)2 Nanoparticles
Jorge Oliva,Christian Gómez-Solís,Luis A. Diaz-Torres,Antonia Martínez-Luévanos,Arturo I. Martinez,Eduardo Coutino-Gonzalez +5 more
TL;DR: In this paper, the authors presented the hydrogen evolution produced by flexible graphene composites (FGCs) fabricated by a casting method, where Ni(OH)2 nanoparticles were also grown on the FGCs by using a wet chemical method.
Journal ArticleDOI
Influence of dimensionality and crystallization on visible-light hydrogen production of Au@TiO2 core–shell photocatalysts based on localized surface plasmon resonance
TL;DR: In this article, the effect of the dimensionality of Au and the crystallinity of TiO2 in Au@TiO2 core-shell photocatalysts on visible-light H2 production was investigated.
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