1,386 Results Found

The thermally-induced crystallization of anodically grown TiO₂ amorphous nanotubes has been studied so far under ambient pressure conditions by techniques such as differential scanning calorimetry and in situ X-ray diffraction, then looking at the ov...

The aim of this study was to investigate the effects of TiO₂/CaO addition on the crystallization and flexural strength of leucite glass-ceramics (GC). Synthesis of translucent and high strength GCs is important for the development of aesthetic and du...

Photocatalytic technology based on the specific band structure of semiconductors offers a promising way to solve the urgent energy and environmental issues in modern society. In particular, hydrogen production from water splitting over semiconductor...

Here, we report on adding an important dimension to the fundamental understanding of the evolution of the thin film micro structure evolution. Thin films have gained broad attention in their applications for electro-optical devices, solar-cell techno...

In this study, the novel mixed-phase TiO₂ nanocrystals (s-TiO₂) with nearly equivalent anatase/rutile ratio were fabricated in the reagent of sec-butanol at the relatively low temperature of 80 °C by using a facile one-step condensing reflux method....

Highly crystallized C-doped mesoporous anatase TiO₂ is prepared using a multi-walled carbon nanotube (MWCNT) mat as both a “rigid” pore template and a carbon doping source. SEM and TEM characterization shows that the MWCNT template imposed a pore str...

Li₂TiO₃ is one of the most significant breeder materials and has potential applications in future fusion reactors. Defect models with three types of lithium vacancies were considered to study the diffusion behavior of tritium in Li₂TiO₃ by the densit...

A nonterminal liquid crystal epoxy monomer is used to create an epoxy–amine network with a typical diamine 4,4′diaminodiphenylmethane. The plain matrix is compared to matrices modified with inorganic fillers: TiO₂ or SiO₂. Conditions of t...

The efficient adsorption and removal of As(III), which is highly toxic, remains difficult. TiO₂ shows promise in this field, though the process needs improvement. Herein, how doping regulates As(OH)₃ adsorption over TiO₂ surfaces is comprehensively i...

Dispersion of functional inorganic nano-fillers like TiO₂ within polymer matrix is known to impart excellent photobactericidal activity to the composite. Epoxy resin systems with Ag⁺ ion doped TiO₂ can have combination of excellent biocidal character...

This study explores the sol–gel synthesis, structural characterization, and photocatalytic performance of Ho³⁺-doped TiO₂ nanopowders at two dopant levels (0.5 and 2 mol%). Transparent, homogeneous gels were prepared using titanium (IV) butoxide and...

In ultrahigh-pressure (UHP) metamorphic rocks, rutile is an important accessory mineral. Its high-pressure polymorph TiO₂II can be a significant indicator of pressure in the diamond stability field. In the present study, in situ high-pressure Raman s...

A systematic SCAPS-1D simulation was performed to evaluate the effects of charge-transport-layer selection, MAPbI₃ crystal phase, TiO₂ modification, and key device parameters on the photovoltaic performance of MAPbI₃-based perovskite solar cells. Twe...

In this study, TiO₂-Bi₂S₃ composites with various morphologies were synthesized through hydrothermal vulcanization with sputtering deposited Bi₂O₃ sacrificial layer method on the TiO₂ nanorod templates. The morphologies of decorated Bi₂S₃ nanostructu...

The rational design of photonic crystal photocatalysts has attracted significant interest in order to improve their light harvesting and photocatalytic performances. In this work, an advanced approach to enhance slow light propagation and visible lig...

Two-dimensional arrays of hollow nanotubes made of TiO ${}_2$ are a promising platform for sensing, spectroscopy and light harvesting applications. Their straightforward fabrication via electrochemical anodization, growing nanotube pillars of fini...

Deposited by a reactive atmospheric pressure non-thermal TiCl₄/O₂/Ar plasma, anatase TiO₂ single crystal sheet-connected film exhibits two large exposed {001} facets and a high concentration of oxygen defects. Strong white photoluminescence centered...

The features of the crystal structures and spontaneous polarization (P_s) under an electric field (E) have been reviewed for (1 − x)(Bi_0.5Na_0.5)TiO₃–xBaTiO₃ (BNT–BT). In-situ measurements of high-resolution synchrotron radiation X-ray diffraction (SR-...

Melt-spun PA6/TiO₂ fibers with TiO₂ modified by silane coupling agents KH550 and KH570 at 0, 1.6, and 4 wt% provide a practical testbed to address three fiber-centric gaps: transferable interphase quantification, interphase-resolved indications of co...

The aim of this study was to produce a coating for protective glass glued to touch displays with high antibacterial effectiveness. This paper presents the structural, mechanical, optical, and antibacterial properties of a TiO₂:Ag–Pt coating pre...

A series of TiO₂ nanosheets-supported Pd catalysts were individually prepared by impregnation, deposition–precipitation, photo-deposition and in situ reduction by NaBH₄. For comparison, Pd supported on P25 was prepared by the impregnation metho...

Phosphate crystals attract much attention on account of their rich crystal structures and excellent physical and chemical properties. Herein, Rb₃Ti₃P₅O₂₀ single crystals were grown by the high temperature solution method using Rb₂CO₃ and NH₄H₂PO₄ as...

With the rapid development of nanotechnology, a variety of engineered nanoparticles (NPs) are being produced. Nanotoxicology has become a hot topic in many fields, as researchers attempt to elucidate the potential adverse health effects of NPs. The b...

Currently, the discharge of wastewater and utilization of phosphorus (P) in human activities cause some environmental problems, such as high organic pollutants in aquatic environments which results in dirty water sources, and a shortage of phosphate...

Population balance and computational fluid dynamics models are built and integrated to carry out a simulation study of the reactive crystallisation process in a confined jet mixer (CJM) for the continuous flow synthesis of TiO₂ nanoparticles at a sup...

The paper deals with investigations concerning the construction of sensors based on a quartz crystal microbalance (QCM) containing a TiO₂ nanostructures sensor layer. A chemical method of synthesizing these nanostructures is presented. The prepared...

Titanium oxide coatings have been deposited by the sol-gel dip-coating method. Crystallization of titanium oxide coatings was then achieved through thermal annealing at temperatures above 400 °C. The structural properties and surface morphology of th...

Indoor toxic volatile organic compounds (VOCs) pollution is a serious threat to people’s health and toluene is a typical representative. In this study, we developed a composite photocatalyst of carbon nitride quantum dots (CNQDs) in situ-doped TiO₂ i...

Hydrothermal crystallization was used to synthesize an advanced hybrid system containing titania and molybdenum disulfide (with a TiO₂:MoS₂ molar ratio of 1:1). The way in which the conditions of hydrothermal treatment (180 and 200 °C) and therma...

In this work we study the optical properties of one-dimensional photonic crystals in which layers of silica nanoparticles are alternated with layers of indium tin oxide nanoparticle (ITO)/titania nanoparticle mixture, using the transfer matrix method...

The full matrix of electro-elastic constants of sillenite-type crystals Bi₁₂TiO₂₀ (BTO) and Bi₁₂SiO₂₀ (BSO) were determined by the resonance method, with d₁₄ and k₁₄ being on the order of 40–48 pC/N and 31%–36%, respectively. In addition, double-rota...

In this paper, we theoretically explore the spectroscopic features of various one-dimensional photonic crystal (1D-PC)-based spectrally selective filters. The 1D-PC structure is composed of alternating layers of titanium dioxide (TiO₂) and graphene o...

Photonic crystal structuring has emerged as an advanced method to enhance solar light harvesting by metal oxide photocatalysts along with rational compositional modifications of the materials’ properties. In this work, surface functionalization...

The cubic oxyhydride perovskite BaTiO_3−xH_x, where the well-known ferroelectric oxide BaTiO₃ is partially hydridized, exhibits a variety of functions such as being a catalyst and precursor for the synthesis of mixed-anion compounds by utilizing...

TiO₂ is widely used in biomaterial implants. The topography, chemical and structural properties of titania surfaces are an important aspect to study. The size of TiO₂ nanoparticles synthetized by sol–gel method can influence the responses in the biol...

The Emeishan Large Igneous Province (ELIP) contains high-Mg volcanic rocks, evolved basalts, and Fe-Ti-V-oxide-bearing layered intrusions, providing a natural system for investigating the coupled effects of H₂O and the redox state on silicate crystal...

In this work, new films containing composite materials based on blends of thermoplastic polymers of the polyurethane (TPU) and polyolefin (TPO) type, in the absence and presence of BaTiO₃ nanoparticles (NPs) with the size smaller 100 nm, were prepare...

A series of Sr_1−xDy_xTi_1−yNb_yO_3−δ (0.05 ≤ x, y ≤ 0.10) samples were fabricated using cold compaction, followed by sintering in a (95% N₂ + 5% H₂) reducing atmosphere. We studied the crystal structure and optical properties of Sr_1−xDy_xTi_1−yNb_yO_3−δ usin...

Tailoring metal oxide photocatalysts in the form of heterostructured photonic crystals has spurred particular interest as an advanced route to simultaneously improve harnessing of solar light and charge separation relying on the combined effect of li...

The sintering behavior, microstructure analysis, crystallization, and microwave performance of (Mg_0.6Zn_0.4)_1−yNi_yTiO₃ (y = 0.01–0.2) ceramics, processed with raw powders of MgO, NiO, ZnO, and TiO₂ via the conventional solid-state method, are investig...

Zeolitic imidazolate framework-8 (ZIF-8) was doped with a rare-earth metal, Eu, using a solvent synthesis method evenly on the surface of a mixed-crystal TiO₂(Mc-TiO₂) structure in order to produce a core–shell structure composite ZIF-8(Eu)@Mc-...

Sr₂TiSi₂O₈ (STS) polar glass-ceramics are promising piezoelectric materials for high-temperature surface acoustic wave (SAW) devices, provided that the orientation of the STS polar axis and the thermomechanical stability of the substrate can be contr...

In this research, electrolyte-insulator-semiconductor (EIS) capacitors with Sb₂O₃ sensing membranes were fabricated. The results indicate that Mg doping and Ti-doped Sb₂O₃ membranes with appropriate annealing had improved material quality and sensing...

Metal oxide nanoparticles (NPs) are regarded as good candidates for many technological applications, where their functional environment is often an aqueous solution. The correct description of metal oxide electronic structure is still a challenge for...

Au/TiO₂ photocatalysts were studied, characterized, and compared for CO₂ photocatalytic gas-phase reduction. The impact of the nature of the TiO₂ support was studied. It was shown that the surface area/porosity/TiO₂ crystal phase/density of specific...

[011] poled relaxor-PT single crystals provide superior piezoelectric constants and electromechanical coupling factors in the 32 crystal directions, and also exhibit high electrical stability under compressive stresses and temperature changes. In par...

This work reports the synthesis and photocatalytic performance of TiO₂–MgO/kaolinite nanocomposites for the degradation of crystal violet (CV) and butyraldehyde under UV irradiation. MgO incorporation enhanced charge separation by limiting elec...

Perovskite oxide photoanodes are attractive for alkaline water oxidation but are commonly limited by interfacial recombination and sluggish charge transfer. Here we enhance anisotropic SrTiO₃ (STO) photoelectrodes via Al doping by simple yet effectiv...

Surface functionalization of TiO₂ inverse opals by graphene oxide nanocolloids (nanoGO) presents a promising modification for the development of advanced photocatalysts that combine slow photon-assisted light harvesting, surface area, and mass transp...

The elastic properties of unpoled and prepoled (Na_1/2Bi_1/2)TiO₃-xBaTiO₃ (NBT-xBT) single crystals near the morphotropic phase boundary were investigated as a function of temperature using Brillouin light scattering. The acoustic mode frequency and th...