Journal ArticleDOI
Photocatalytic hydrogen production using metal doped TiO2: A review of recent advances
Reads0
Chats0
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
More filters
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.
Journal ArticleDOI
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
More filters
Journal ArticleDOI
Passivation of defect states in anatase TiO2 hollow spheres with Mg doping: Realizing efficient photocatalytic overall water splitting
TL;DR: In this article, the defect induced light absorption in anatase TiO 2 hollow spheres could be reduced by Mg doping, and the defect states evolution was investigated by the transient infrared absorption-excitation energy scanning spectroscopic measurement (TRIRA-EESS).
Journal ArticleDOI
Copper modified-TiO2 catalysts for hydrogen generation through photoreforming of organics. A short review
Laura Clarizia,Danilo Spasiano,Ilaria Di Somma,Raffaele Marotta,Roberto Andreozzi,Dionysios D. Dionysiou +5 more
TL;DR: In this paper, a critical literature review has been performed with the aim of providing a complete background to select the most efficient approaches and eventually promote new competitive systems for hydrogen generation via photoreforming for industrial applications.
Journal ArticleDOI
Nonlinear Refractory Plasmonics with Titanium Nitride Nanoantennas.
Lili Gui,Shahin Bagheri,Nikolai Strohfeldt,Mario Hentschel,Christine M. Zgrabik,Bernd Metzger,Heiko Linnenbank,Evelyn L. Hu,Harald Giessen +8 more
TL;DR: It is confirmed that the TiN antennas are able to endure laser irradiation with high peak intensity up to 15 GW/cm(2) without changing their optical properties and their physical appearance and could serve as promising candidates for high-power/high-temperature applications such as coherent nonlinear converters and local heat sources on the nanoscale.
Journal ArticleDOI
Electronic structure and photocatalytic properties of copper-doped CaTiO3
TL;DR: In this article, the determination by X-ray diffraction pattern of crystal structure and UV-visible light adsorption studied by ultraviolet-visible absorption spectroscopy (UV-vis) were reported.
Journal ArticleDOI
CuOx-TiO2 junction: what is the active component for photocatalytic H2 production?
TL;DR: It is demonstrated that an as-prepared CuOx-TiO2 photocatalyst undergoes an in situ restructuring process during photocatalytic H2 production under solar light irradiation to form the active Cu2O- TiO2 interfacial structure on the surface.
Related Papers (5)
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more