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In this work, we introduce a facile procedure to graft a thin graphitic C3N4 (g-C3N4) layer on aligned TiO2 nanotube arrays (TiNT) by one-step chemical vapor deposition (CVD) approach. This provides a platform to enhance the visible-light…

Biological Physics · Physics 2016-11-17 Jingwen Xu , Yan Li , Xuemei Zhou , Yuzhen Li , Zhi-Da Gao , Yan-Yan Song , Patrik Schmuki

Zr/N co-doped TiO2 nanostructures were successfully synthesized using nanotubular titanic acid (NTA) as precursors by a facile wet chemical route and subsequent calcination. These Zr/N-doped TiO2 nanostructures made by NTA precursors show…

Materials Science · Physics 2013-12-31 Min Zhang , Xinluan Yu , Dandan Lu , Jianjun Yang

Titanic acid nanotubes (with a chemical formula H2Ti2O4(OH)2, abbreviated as TANTs) were synthesized by the hydrothermal method using commercial TiO2 nanoparticle powder (P25, Degussa, Germany) including anatase and rutile phase as a…

Materials Science · Physics 2011-06-15 Baoli Tian , Xing Zhang , Shuxi Dai , Ke Cheng , Zhensheng Jin , Yabin Huang , Zuliang Du , Guangtian Zou , Bingsuo Zou

Highly ordered TiO2 nanotube arrays (TNAs) codoped with V and N were synthesized by electrochemical anodization in association with hydrothermal treatment. The samples were characterized by field emission scanning electron microscopy, X-ray…

Materials Science · Physics 2014-05-28 Min Zhang , Dandan Lu , Zhihua Zhang , Jianjun Yang

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

Sensing response of individual single-crystal titania nanowires configured as chemiresistors for detecting reducing (CO, H2) and oxidizing (O2) gases is shown to be sensitive to visible light illumination. It is assumed that doping of the…

Mesoscale and Nanoscale Physics · Physics 2015-01-09 Jie Zhang , Evgheni Strelcov , Andrei Kolmakov

In this work we introduce the use of TiN/Ti2 N layers as a back contact for lifted-off membranes of anodic Ta3N5 nanotube layers. In photoelectrochemical H2 generation experiments under simulated AM 1.5G light, shift of the onset potential…

Materials Science · Physics 2016-10-14 Lei Wang , Anca Mazare , Imgon Hwang , Patrik Schmuki

TiO2 nanotube arrays grown by anodization were coated with thin layers of polydopamine as visible light sensitizer. The PDA-coated TiO2 scaffolds were used as photocatalyst for selective oxidation of benzyl alcohol under monochromatic…

Materials Science · Physics 2016-10-18 Jyotsna Tripathy , Gabriel Loget , Marco Altomare , Patrik Schmuki

In this work, we design a TiO2 nanomembrane (TiNM) that can be used as a nanofilter platform for a selective enrichment of specific proteins. After use the photocatalytic properties of TiO2 allow to decompose unwanted remnant on the…

Materials Science · Physics 2016-10-21 Jingwen Xu , Lingling Yang , Yuyao Han , Yongmei Wang , Xuemei Zhou , Zhida Gao , Yan-Yan Song , Patrik Schmuki

Highly controlled coating of biomimetic polydopamine (PDA) was achieved on titanium dioxide nanotubes (TiO2 NTs) by exposing TiO2 NT arrays to a slightly alkaline dopamine solution. The thin films act as photonic sensitizers (enhancing…

Materials Science · Physics 2016-10-14 Gabriel Loget , Jeung Eun Yoo , Anca Mazare , Lei Wang , Patrik Schmuki

TiO2 is a wide band-gap semiconductor that has been intensively investigated for photocatalysis and water-spiting. However, weak light absorption in the visible region of the spectrum poses stringent limitation to its practical application.…

Materials Science · Physics 2023-02-07 Fernando P. Sabino , Anderson Janotti

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…

Boron nitride is a promising material for nanotechnology applications due to its two-dimensional graphene-like, insulating, and highly-resistant structure. Recently it has received a lot of attention as a substrate to grow and isolate…

Materials Science · Physics 2013-09-25 Claudio Attaccalite , Ludger Wirtz , Andrea Marini , Angel Rubio

In the present work we explore the front- and back-side performance of a photocatalytic platform consisting of self-organized TiO2 nanotube layers formed by complete anodization of Ti metal films evaporated on quartz slides. The adhesion…

Photocatalytic reactions on TiO2 have recently gained an enormous resurgence because of various new strategies and findings that promise to drastically increase efficiency and specificity of such reactions by modifications of the titania…

Applied Physics · Physics 2020-04-13 Xuemei Zhou , Ning Liu , Patrik Schmuki

We describe a rapid screening technique for determining the optimal characteristics of nano- photocatalysts for the production of H2 on a single surface. Arrays of TiO2 nanotubes (NTs) with a gradient in length and diameter were fabricated…

Materials Science · Physics 2016-10-18 G. Loget , P. Schmuki

A series of W, N codoped TiO2 nanotube arrays with different dopant contents were fabricated by anodizing in association with hydrothermal treatment. The samples were characterized by scanning electron microscopy, X-ray diffraction, X-ray…

Materials Science · Physics 2013-12-06 Min Zhang , Juan Wu , DanDan Lu , Jianjun Yang

Bacterial infections are a common problem in daily life that can affect human health. Researchers are looking for valuable materials that can help prevent such infections and environmental pollutants. Thin films are a well-known application…

Materials Science · Physics 2023-12-18 Mehmet Eymen Sumer , Bengu Ozugur Uysal

In the present work we investigate the photocatalytic hydrogen production (water splitting) activity of different Pt loaded TiO2 nanotube layers. Therefore, we fabricate free standing membranes and fix them in four different configurations:…

Materials Science · Physics 2016-10-14 Gihoon Cha , Kiyoung Lee , JeongEun Yoo , Manuela S. Killian , Patrik Schmuki

Thermoresponsive hydrogels have been studied intensively for creating smart drug carriers and controlled drug delivery. Understanding the drug release kinetics and corresponding transport mechanisms of nanoparticles (NPs) in a…

Soft Condensed Matter · Physics 2020-05-12 Yi Wang , Zhen Li , Jie Ouyang , George Em Karniadakis
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