Results 121 to 130 of about 125,199 (299)

TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation

International Journal of Photoenergy, 2011
TiO2/ZnS/CdS composites for photocatalytic hydrogen production from water were prepared by homogeneous hydrolysis of aqueous solutions mixture of TiOSO4, ZnSO4, and CdSO4 with thioacetamide.
Václav Štengl, Daniela Králová
doaj   +1 more source

Characterizing Nanoparticles Reactivity: Structure-Photocatalytic Activity Relationship

Journal of Physics: Conference Series, 2013
Nanoparticles are reactive, and their final interactions with the surrounding media are ultimately determined by their reactivity, which in turns depends on the nanoparticles morphology, surface chemistry and environment in which they are embedded. One simple and informative approach for the study of the reactivity of nanoparticles is the determination
J Piella, N G Bastús, E Casals, V Puntes   +3 more
openaire   +2 more sources

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Synthesis of titanate nanostructures using amorphous precursor material and their adsorption/photocatalytic properties

, 2012
This paper reports on a new and swift hydrothermal chemical route to prepare titanate nanostructures (TNS) avoiding the use of crystalline TiO2 as starting material. The synthesis approach uses a commercial solution of TiCl3 as titanium source to prepare
A Franco, A-L Papa, A. J. Silvestre, B Erdem, B Zielińska, BC Viana, C Huang, C-K Lee, CL Wong, DV Bavykin, DV Bavykin, DV Bavykin, DV Bavykin, E. K. Ylhäinen, G Kortuem, H Yu, H-H Ou, H–H Ou, J Huang, J-Y Kim, M Miyauchi, M Qamar, M. R. Nunes, MC Neves, MD Hernandez-Alonso, MR Nunes, MW Xiao, O. C. Monteiro, OP Ferreira, R Yoshida, S Chatterjee, T Kasuga, V Stengl, W Zhou, X Sun, XD Li, Y Zhang, YV Kolen’ko   +37 more
core   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Enhancement of Visible-Light-Induced Photocurrent and Photocatalytic Activity of V and N Codoped TiO2 Nanotube Array Films

, 2014
Highly ordered TiO2 nanotube arrays (TNAs) codoped with V and N were synthesized by electrochemical anodization in association with hydrothermal treatment.
Lu, Dandan, Yang, Jianjun, Zhang, Min, Zhang, Zhihua   +3 more
core   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

Advanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti, Rebeca Ferrer Campos, Yufen Chen, Katherine Villa   +3 more
wiley   +1 more source

Enhancing the Photocatalytic Activity of Immobilized TiO₂ Using Laser-Micropatterned Surfaces

Applied Sciences
In the past, the application of TiO2 slurry reactors has faced difficulties concerning the recovery and reusability of the catalyst. In response to these challenges, immobilized photocatalyst systems have been investigated, wherein the catalyst is fixed ...
Theodoros Giannakis, Sevasti-Kiriaki Zervou, Theodoros M. Triantis, Christophoros Christophoridis, Erasmia Bizani, Sergey V. Starinskiy, Panagiota Koralli, Georgios Mousdis, Anastasia Hiskia, Maria Kandyla   +9 more
doaj   +1 more source

Photocatalytic Degradation of Polyacrylamide in Oilfield Sewage by Nano-sized TiO2 Doped with W Ion

MATEC Web of Conferences, 2016
The Nano-TiO2 was modified by doping TiO2 nanoparticles with W6+ as catalyst, improving the photocatalytic activity and photocatalytic properties of nanometer TiO2.
Wang Guilong, Zhuo Xingjia, Wang Yue
doaj   +1 more source

In situ formation of catalytically active graphene in ethylene photo-epoxidation. [PDF]

, 2018
Ethylene epoxidation is used to produce 2 × 107 ton per year of ethylene oxide, a major feedstock for commodity chemicals and plastics. While high pressures and temperatures are required for the reaction, plasmonic photoexcitation of the Ag catalyst ...
Heo, Jaeyoung, Jain, Prashant K, Kumari, Gayatri, Zhang, Xueqiang   +3 more
core   +1 more source