Results 101 to 110 of about 69,846 (270)

Optimization of Anatase TiO₂ Photocatalyst for Diclofenac Degradation by Using Response Surface Methodology

Applied Sciences
Titanium oxide semiconductors are considered effective photocatalysts for the degradation of organic pollutants. The photocatalytic activity of titanium dioxide is influenced by several factors, one of which is its phase composition, with anatase being ...
Desalegn Abdissa Akuma, Henrik Lund, Thi Thanh Hoa Duong, Fekadu Fufa, Jennifer Strunk, Norbert Steinfeldt   +5 more
doaj   +1 more source

Review of the Structural Stability, Electronic and Magnetic Properties of Nonmetal-Doped TiO$_2$ from First-Principles Calculations

, 2012
This paper reviews and summarizes the recent first-principles theoretical studies of the structural stability, electronic structure, optical and magnetic properties of nonmetal-doped TiO$_2$.
Dai, Ying, Huang, Baibiao, Yang, Kesong
core   +1 more source

Ni Single‐Atom Modulation of Ti‐O Covalency Boosts Ammonia Oxidation Electrocatalysis

Advanced Science, EarlyView.
A Ni single‐atom‐induced enhancement of Ti‐O covalency in Ni SAC@TiO2 generates abundant active sites and promotes selective NHx‐NHy mediated N2 evolution while suppressing poisonous NOx formation, achieving nearly doubled AOR activity with excellent durability.
Subhash Chandra Shit, Dayoung Kwon, Nhi Thi Yen Phan, Hyo Won Kim, Jucheol Park, Jeong‐hyeon Lee, Hyeyoung Shin, Wooyul Kim   +7 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

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

Advanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu, Chaochao Dun, Jeffrey J. Urban, Mark T. Swihart   +3 more
wiley   +1 more source

Preparation and Structural Characterizations of Titania Slag

High Temperature Materials and Processes, 2012
The thermal stability, crystal structures, microstructure, surface chemical functional groups and molecular structures of titania slag were characterized using TG/DSC, XRD, SEM, FT-IR and Raman spectroscopy techniques, respectively.
Chen Guo, Chen Jin, Srinivasakannan C., Peng Jinhui   +3 more
doaj   +1 more source

Ion‐Confinement‐Assisted Erasure Purifies Oxidized MXene for Reuse

Advanced Science, EarlyView.
An erasure‐purification strategy removes surface‐derived TiO2 from oxidized Ti3C2Tx MXene by ion‐confinement‐induced interfacial conversion to soluble titanates, followed by brief acid washing. The scalable process enables approximately 70% material recovery, restores electrical conductivity, and recovers functional performance, including high ...
Xuefeng Zhang, Yujia Wu, Huayu Xu, Jinyi Ye, Yanfang Yang, Haohan Wu, Jiayi Lu, Hao Li, Dongxiao Kan, Jingfeng Wang, Hui Kang, Zhimin Fan   +11 more
wiley   +1 more source

Surface‐State–Regulated Product Distribution in Photothermal CO2 Hydrogenation Over MXene‐Based S‐Scheme Catalyst

Angewandte Chemie, EarlyView.
This work establishes an MXene‐based S‐scheme heterojunction in which the cooperative interplay among metallic Ni, surface NiOx domains, and conductive Ti3C2Clx drives efficient charge separation and photothermal coupling. Progressive evolution of Ni surface states regulates the CH4/CH3OH product distribution by modulating interfacial energetics and ...
Dawid D. Kruger, María Cabrero‐Antonino, Silvio Osella, Feiyan Xu, Jiaguo Yu, Ana Primo, Hermenegildo Garcia   +6 more
wiley   +2 more sources

Phase transitions and guest positions state in the nanodisperse TiO2 caused by laser irradiation

Фізика і хімія твердого тіла
The laser irradiation effect on the guest positions state in TiO2 (anatase) that facilitates lithium ions access to these positions was studied. The method of chemical potential spectroscopy revealed sharp voltage drops and the associated minima in the ...
I.M. Budzuliak, L.S. Yablon, V.O. Kotsiubynskyi, R.V. Ilnitsky, I.I. Budzuliak, O.V. Morushko, N.R. Ilnitsky, T.R. Sorohtei   +7 more
doaj   +1 more source

Theoretical study on copper's energetics and magnetism in TiO2 polymorphs

, 2013
We carried out density functional theory calculations to model the electronic structure and the magnetic interactions in copper doped anatase and rutile titanium dioxide in order to shed light on the potential of these systems as magnetic oxides using ...
Assadi, M. Hussein. N., Hanaor, Dorian A. H.   +1 more
core   +1 more source