Journal ArticleDOI
Engineering the Absorption and Field Enhancement Properties of Au-TiO2 Nanohybrids via Whispering Gallery Mode Resonances for Photocatalytic Water Splitting
Jianming Zhang,Xin Jin,Pablo I. Morales-Guzman,Xin Yu,Hong Liu,Hong Liu,Hua Zhang,Luca Razzari,Jerome P. Claverie +8 more
TLDR
Using numerical simulations, it is demonstrated that, by solely exploiting a proper geometrical arrangement and WGM resonances in a TiO2 sphere, the plasmonic absorption can be extended over the entire visible range and can be increased by more than 40 times.Abstract:
Recently, surface plasmon resonance (SPR) effects have been widely used to construct photocatalysts which are active in the visible spectral region. Such plasmonic photocatalysts usually comprise a semiconductor material transparent in the visible range (such as TiO2) and plasmonic nano-objects (e.g., Au nanoparticles (Au NPs)). Specific SPRs, though, only partially cover the visible spectrum and feature weak light absorption. Here, we explore the unique role played by whispering gallery mode (WGM) resonances in the expression of the photocatalytic activity of plasmonic photocatalysts. Using numerical simulations, we demonstrate that, by solely exploiting a proper geometrical arrangement and WGM resonances in a TiO2 sphere, the plasmonic absorption can be extended over the entire visible range and can be increased by more than 40 times. Furthermore, the local electric field at the Au–TiO2 interface is also considerably enhanced. These results are experimentally corroborated, by means of absorption spectro...read more
Citations
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Journal ArticleDOI
Photocatalytic Water Splitting—The Untamed Dream: A Review of Recent Advances
TL;DR: Future directions are focused on developing innovative junction architectures, novel synthesis methods and optimizing the existing active materials to enhance charge transfer, visible light absorption, reducing the gas evolution overpotential and maintaining chemical and physical stability.
Journal ArticleDOI
Challenges and Prospects in Solar Water Splitting and CO2 Reduction with Inorganic and Hybrid Nanostructures
Jacek K. Stolarczyk,Jacek K. Stolarczyk,Santanu Bhattacharyya,Santanu Bhattacharyya,Lakshminarayana Polavarapu,Lakshminarayana Polavarapu,Jochen Feldmann,Jochen Feldmann +7 more
TL;DR: In this paper, the authors focused on the heterogeneous photocatalytic water splitting and on CO2 reduction with nanostructured semiconductors, metals, and their hybrids.
Journal ArticleDOI
Cadmium sulfide-based nanomaterials for photocatalytic hydrogen production
TL;DR: In this paper, a review of the recent advances in material design and technological aspects of CdS-based photocatalysts for applications in photovoltaic H2 production is presented.
Journal ArticleDOI
MoS2/TiO2 heterostructures as nonmetal plasmonic photocatalysts for highly efficient hydrogen evolution
Limin Guo,Zhenzhong Yang,Kyle Marcus,Zhao Li,Bingcheng Luo,Le Zhou,Xiaohui Wang,Yingge Du,Yang Yang +8 more
TL;DR: In this paper, a non-metal plasmonic MoS2@TiO2 heterostructures for highly efficient photocatalytic H2 generation were reported.
Journal ArticleDOI
Metal–Organic Frameworks Derived Cobalt Phosphide Architecture Encapsulated into B/N Co-Doped Graphene Nanotubes for All pH Value Electrochemical Hydrogen Evolution
TL;DR: In this paper, a bottom-up strategy for synthesis of transition metal phosphide (TMP) architecture encapsulated into BCN nanotubes (CoP@BCN) through pyrolysis and phosphidation is introduced.
References
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Journal ArticleDOI
Photocatalysis on TiO2 Surfaces - Principles, Mechanisms, and Selected Results
TL;DR: In this article, the authors focus on interfacial processes and summarize some of the operating principles of heterogeneous photocatalysis systems, including the electron transfer and energy transfer processes in photocatalytic reactions.
Journal ArticleDOI
Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy
TL;DR: Plasmon-enhanced water splitting on composite photocatalysts containing semiconductor and plasmonic-metal building blocks is focused on, and recently reported plasMon-mediated photocatallytic reactions on plAsmonic nanostructures of noble metals are discussed.
Journal ArticleDOI
Determination of size and concentration of gold nanoparticles from UV-vis spectra
TL;DR: It is shown that the data produced here can be used to determine both size and concentration of gold nanoparticles directly from UV-vis spectra, and the precision of various methods are discussed.
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Plasmon-induced hot carrier science and technology
TL;DR: Recent advances in the understanding and application of plasmon-induced hot carrier generation are discussed and some of the exciting new directions for the field are highlighted.
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