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Titanium dioxide (TiO$_2$) thin films are commonly used as photocatalytic materials. Here, we enhance the photocatalytic activity of devices based on TiO$_2$ by combining nanostructured glass substrates with metallic plasmonic…

Solar disinfection by photocatalysis is one of the promising methods used for drinking water disinfection. It leads to the destruction of bacteria like $Escherichia$ $Coli$ ($E.$ $Coli$). In this paper, we compare our theoretical results…

Soft Condensed Matter · Physics 2017-06-23 K. Elmenaouar , R. Benbrik , A. Aamouche

Commercial titanium dioxide is successfully plasma-treated under ambient conditions for different time periods, leading to reduced crystallite size and the creation of oxygen vacancies. Density functional theory-based calculations reveal…

Applied Physics · Physics 2024-04-26 C. Ugwumadu , I. Olaniyan , H. K. Jeong , D. A. Drabold

Photoreforming is a sustainable photocatalytic process that degrades plastic waste while simultaneously producing hydrogen (H2) from water. However, this process has received limited attention due to the scarcity of effective catalysts…

Materials Science · Physics 2024-12-03 Thanh Tam Nguyen , Kaveh Edalati

Titanium dioxide (TiO$_2$) plays a central role in the study of artificial photosynthesis, owing to its ability to perform photocatalytic water splitting. Despite over four decades of intense research efforts in this area, there is still…

Materials Science · Physics 2016-07-28 Christopher E. Patrick , Feliciano Giustino

CO$_2$ photoreduction on photocatalysts is a nature-friendly solution to decrease the CO$_2$ amount, but the method still has low efficiency because of difficult separation and easy recombination of charge carriers in available catalysts.…

Photocatalytic water splitting reaction on TiO2 surface is one of the fundamental issues that bears significant implication in hydrogen energy technology and has been extensively studied. However, the existence of the very first reaction…

Chemical Physics · Physics 2011-11-15 Shijing Tan , Yongfei Ji , Yang Wang , Jin Zhao , Aidi Zhao , Bing Wang , Yi Luo , Jinlong Yang , J. G. Hou

In the present work, a simple strategy is used to thermally oxidize TiN nanopowder (ca. 20 nm) to an anatase phase of a TiO2:Ti3+:N compound. In contrast to the rutile phase of such a compound this photocatalyst provides photocatalytic…

Materials Science · Physics 2016-10-21 Xuemei Zhou , Eva M. Zolnhofer , Nhat Truong Nguyen , Ning Liu , Karsten Meyer , Patrik Schmuki

Titanium dioxide (TiO2) is a known photocatalyst with a capability of decomposing organic substance. However, the photocatalysis of the pure TiO2 is not effective for the indoor environment due to a lack of the ultraviolet irradiation…

Applied Physics · Physics 2019-05-17 Zhuoying Jiang , Xiong Yu

The polymer of intrinsic microporosity PIM 1 is employed to disperse and deposit a Pt at titanate nanosheet photocatalyst film. The resulting microporous films allow electrolyte and oxygen permeation to give conventional oxygen reduction…

Access to safe drinking water remains a major challenge in rural areas of developing countries. This study investigates the feasibility of a simple, low-cost solar photocatalytic reactor coated with commercial titanium dioxide (TiO$_2$) for…

The potential application of the single-layer MoS2 as photocatalyst was revealed in this work based on first-principles calculations. It is found that the pristine single-layer MoS2 is a good candidate for photocatalyst, and its catalyzing…

Materials Science · Physics 2013-05-15 Yunguo Li , Yan-ling Li , Carlos Moyses Araujo , Wei Luo , Rajeev Ahuja

Titanium dioxide is a photocatalytic substance of great practical importance. However, with its bandgap in the ultraviolet (UV) regime, native forms (undoped) of TiO2 generally exhibits poor photocatalytic activities under visible light.…

Chemical Physics · Physics 2013-12-04 Mingzheng Wang , Ka-Kit Yee , Biao Nie , Hua Cheng , Jian Lu , Linbao Luo , Zhengtao Xu , Yang Yang Li

Supported carbon nanosheets and carbon nanotubes served as sacrificial templates for preparing spacious TiO2 photocatalytic thin films. Amorphous TiO2 was deposited conformally on the carbonaceous template material by atomic layer…

A molecular-dynamics thermal annealing model is proposed to investigate the mechanisms involved in picosecond pulsed laser ablation of crystalline silicon. In accordance with the thermal annealing model, a detailed description of the…

Materials Science · Physics 2007-05-23 Patrick Lorazo , Laurent J. Lewis , Michel Meunier

Water splitting is unanimously recognized as environment friendly, potentially low cost and renewable energy solution based on the future hydrogen economy. Especially appealing is photo-catalytic water splitting whereby a suitably chosen…

Optics · Physics 2023-07-19 V. G. Kravets , A. N. Grigorenko

In a recent paper [PRL 91, 138103 (2003)] a new mechanism to explain the cold denaturation of proteins, based on the loss of local low-density water structure, has been proposed. In the present paper this mechanism is tested by means of…

Other Condensed Matter · Physics 2009-11-11 Manuel I. Marques

Wide proliferation of low temperature hydrogen fuel cell systems, a key part of the hydrogen economy, is hindered by degradation of the platinum cathode catalyst. Here, we provide a device level assessment of the molecular scale catalyst…

Volatile organic molecules formed by photochemistry in the upper atmosphere of Titan can undergo condensation as pure ices in the stratosphere and the troposphere as well as condense as ice layers onto the organic aerosols that are visible…

Earth and Planetary Astrophysics · Physics 2019-04-02 Benjamin Fleury , Murthy S. Gudipati , Isabelle Couturier-Tamburelli , Nathalie Carrasco

Visible-light photocatalyst titanium dioxide (TiO2) was successfully prepared via a novel and facile single-mode microwave assisted synthesis process. In this one-step synthesis, Ti as target material selectively oxides in magnetic field…

Applied Physics · Physics 2022-02-04 Kunihiko Katoa , Sebastien Vaucher , Patrik Hoffmann , Yunzi Xin , Takashi Shirai
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