Journal ArticleDOI
A New Visible-Light Photocatalyst: CdS Quantum Dots Embedded Mesoporous TiO2
TLDR
The new photocatalyst showed excellent photocatalytic efficiency for both oxidation of NO gas in air and degradation of organic compounds in aqueous solution under visible light irradiation.Abstract:
Cadmium sulfide quantum dots (QDs) sensitized mesoporous TiO2 photocatalysts were prepared by preplanting cadmium oxide as crystal seeds into the framework of ordered mesoporous titanium dioxide and then converting CdO to CdS QDs through ion-exchange. The presence of CdS QDs in the TiO2 framework extended its photoresponse to the visible-light region by accelerating the photogenerated electron transfer from the inorganic sensitizer to TiO2. The new photocatalyst showed excellent photocatalytic efficiency for both oxidation of NO gas in air and degradation of organic compounds in aqueous solution under visible light irradiation. The photocatalysts were characterized by XRD, N2 adsorption−desorption, TEM, XPS, UV/vis, and PL spectroscopy. The relationship between the physicochemical properties and the photocatalytic performance of the sample is discussed.read more
Citations
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Journal ArticleDOI
Defective TiO2 with oxygen vacancies: synthesis, properties and photocatalytic applications
TL;DR: This tutorial minireview gives a short review on the existing strategies for the synthesis of defective TiO2 with oxygen vacancies, and the defect related properties ofTiO2 including structural, electronic, optical, dissociative adsorption and reductive properties, which are intimately related to the photocatalytic performance of TiO 2.
Journal ArticleDOI
Visible-light activation of TiO2 photocatalysts: Advances in theory and experiments
Vinodkumar Etacheri,Vinodkumar Etacheri,Cristiana Di Valentin,Jenny Schneider,Detlef W. Bahnemann,Detlef W. Bahnemann,Suresh C. Pillai +6 more
TL;DR: In this article, advances in the strategies for the visible light activation, origin of visible light activity, and electronic structure of various visible-light active TiO 2 photocatalysts are discussed in detail.
Journal ArticleDOI
Surface modification of TiO2 photocatalyst for environmental applications
TL;DR: In this paper, a review of surface-modified TiO2 photocatalysis based on photo-induced interfacial charge transfer has been conducted, which is mainly focused on environmental remediation, and various surface modifiers are classified according to the kind of surface modifiers and their effects on photocatalytic reaction mechanism and kinetics are discussed in detail.
Journal ArticleDOI
Ordered mesoporous metal oxides: synthesis and applications.
Yu Ren,Zhen Ma,Peter G. Bruce +2 more
TL;DR: Different methods for the preparation of ordered mesoporous metal oxides are described; their applications in energy conversion and storage, catalysis, sensing, adsorption and separation are reviewed; and the correlations between the textural properties and their specific performance are highlighted.
Journal ArticleDOI
Highly Efficient Visible-Light Plasmonic Photocatalyst Ag@AgBr
Peng Wang,Baibiao Huang,Xiaoyang Zhang,Xiaoyan Qin,Hao Jin,Ying Dai,Zeyan Wang,Jiyong Wei,Jie Zhan,Shaoying Wang,Junpeng Wang,Myung-Hwan Whangbo +11 more
TL;DR: The newly-prepared plasmonic photocatalyst Ag section signAgBr has a strong absorption in the visible region and shows high efficiency in the photodegradation of organic pollutants under visible light.
References
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Journal ArticleDOI
Environmental Applications of Semiconductor Photocatalysis
TL;DR: The slow pace of hazardous waste remediation at military installations around the world is causing a serious delay in conversion of many of these facilities to civilian uses as discussed by the authors, which is a serious problem.
Journal ArticleDOI
The impact of nanoscience on heterogeneous catalysis
TL;DR: Advances in characterization methods have led to a molecular-level understanding of the relationships between nanoparticle properties and catalytic performance, and this knowledge is contributing to the design and development of new catalysts.
Journal ArticleDOI
Surface Science Studies of the Photoactivation of TiO2New Photochemical Processes
Tracy L. Thompson,John T. Yates +1 more
Journal ArticleDOI
Enhancement of photocatalytic H2 evolution on CdS by loading MoS2 as Cocatalyst under visible light irradiation.
TL;DR: This communication presents the recent results that the activity of photocatalytic H2 production can be significantly enhanced when a small amount of MoS2 is loaded on CdS as cocatalyst.
Journal ArticleDOI
Novel Mesoporous Materials with a Uniform Distribution of Organic Groups and Inorganic Oxide in Their Frameworks
TL;DR: In this article, the synthesis of highly ordered organic-inorganic hybrid mesoporous materials is described. But the synthesis procedure to polymerize the organosilane monomer containing two trialkoxysilyl groups in the presence of surfactant can be applied to synthesize a variety of high-order mesopore materials.
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