1,386 Results Found

Titania (TiO₂) nanosheets are crystals with controlled, highly ordered structures that improve the functionality of conventional TiO₂ nanoparticles. Various surface modification methods have been studied to enhance the effectiveness of these material...

The evolution of the domain structures of [001]-oriented relaxor ferroelectric 0.93PbZn_1/3Nb_2/3O₃-0.07PbTiO₃ (PZN-7%PT) single crystals as a function of temperature was investigated in situ by using piezoresponse force microscopy (PFM). It was found...

Titanium dioxide (TiO₂), one of the most frequently used materials in general, has emerged as an excellent photocatalytic material for environmental applications. In this review, principles and mechanisms of the photocatalytic activity of TiO₂ have b...

Perovskite solar cells (PSC) are currently exhibiting reproducible high efficiency, low-cost manufacturing, and scalable electron transport layers (ETL), which are becoming increasingly important. The application of photonic crystals (PC) on solar ce...

Titanium dioxide (TiO₂) nanoparticles have recently appeared in PET waste because of the introduction of opaque PET bottles. We prepare polymer blend nanocomposites (PBNANOs) by adding hydrophilic (hphi), hydrophobic (hpho), and hydrophobically modif...

TiO₂–CdO composite rods were synthesized through a hydrothermal method and sputtering thin-film deposition. The hydrothermally derived TiO₂ rods exhibited a rectangular cross-sectional crystal feature with a smooth surface, and the as-synthesized CdO...

Coating metals with anti-coking materials inhibit their catalytic coking and are especially beneficial in the pyrolysis of hydrocarbon fuels. It is believed that growth characteristics and properties may play a pivotal role in the anti-coking perform...

A p-n nanocomposite based on TiO₂ nanotubes (NTs) and NiO nanoparticles (NPs) was designed and optimized in this study to improve the photocatalytic performance of methylene blue (MB). The hydrothermal technique has been used to produce TiO₂/NiO nano...

Alkali resistance is a critical factor for the long-term performance of glass fibers in cementitious composites. While zirconium oxide doping has proven effective in enhancing the durability of basalt fibers, its high cost and limited solubility moti...

The removal of air pollutants is an important research topic in order to improve the environment. In addition, many common pollutants can affect human health to varying degrees. In this work, we investigate NO and SO₂ conversion by reaction with a co...

TiO₂ is popular in photocatalytic degradation dye pollutants due to its abundance and its stability under photochemical conditions. Au loaded TiO₂ can achieve efficient absorption of visible light and deal with the problem of low conversion efficienc...

As a unique form of TiO₂, TiO₂ nanotube arrays (TiO₂NTAs) have been widely used. TiO₂NTAs are usually prepared by Ti foil, with little research reporting its preparation by Ti mesh. In this paper, TiO₂NTAs are prepared on a Ti mesh surface via an ano...

The application of TiO₂ nanorods in the field of ultraviolet (UV) photodetectors is hindered by a high dark current, which is attributed to crystal surface defects and intrinsic excitation by carrier thermal diffusion. Here, a photodetector based on...

TiO₂–Ag₂O composite nanorods with various Ag₂O configurations were synthesized by a two-step process, in which the core TiO₂ nanorods were prepared by the hydrothermal method and subsequently the Ag₂O crystals were deposited by sputtering depos...

Phase transitions of Mg₂TiO₄ and Fe₂TiO₄ were examined up to 28 GPa and 1600 °C using a multianvil apparatus. The quenched samples were examined by powder X-ray diffraction. With increasing pressure at high temperature, spinel-type Mg₂TiO₄ decomp...

ZnTiO₃/TiO₂ composite photocatalysts were synthesized via the sol–gel technique, and the impact of varying heat treatment temperatures (470, 570, 670 °C) on their crystalline arrangement, surface morphology, elemental composition, chemical...

High-k Ba₄Sm_28/3Ti₁₈O₅₄ ceramics with improved microwave dielectric characteristics were successfully fabricated using the one-step reaction sintering (RS) route. The sintering characteristics, microstructure, crystal structure, infrared reflection s...

Background: Titanium (Ti) is one of the most popular implant materials, and its surface titanium dioxide (TiO₂) provides good biocompatibility. The coagulation of blood on Ti implants plays a key role in wound healing and cell growth at the implant s...

A high-quality Ba₂TiSi₂O₈ (BTS) single crystal was grown using the Czochralski (Cz) pulling method. The thermal expansion and electro-elastic properties of BTS crystal were studied for high temperature sensor applications. The relative dielectric per...

Titanium dioxide (TiO₂) materials have been intensively studied in the past years because of many varied applications. This mini review article focuses on TiO₂ micro and nano architectures with the prevalent crystal structures (anatase, rutile, brook...

This study investigated the adsorption capacity to remove C.I. Reactive Red 35 by three different adsorbent beads, consisting of pure chitosan and two different chitosan/titania (TiO₂) composite beads with the TiO₂ being obtained either from the sol-...

Anatase/rutile mixed-phase TiO₂ nanoparticles were synthesized through a simple sol-gel route with further calcination using inexpensive titanium tetrachloride as a titanium source, which effectively reduces the production cost. The structural and op...

Integrating photocatalysis with adsorption represents an efficient approach to improving the removal performance of organic contaminants from aqueous environments. To address the issues of severe charge recombination and poor adsorption activity in T...

In this study, in situ TiO₂ was grown on the surface of graphene by a facile sol–gel method to form black TiO₂/graphene composites with highly improved photocatalytic activity. The combination of graphene and TiO₂ was beneficial to eliminate th...

Titanium oxide (TiO₂) films and TiO₂/SiN_x stacks have potential in surface passivation, anti-reflection coatings and carrier-selective contact layers for crystalline Si solar cells. A Si wafer, deposited with 8-nm-thick TiO₂ film by atomic layer depo...

Titanium dioxide (TiO₂) thin films are widely employed for photocatalytic and photovoltaic applications where the long lifetime of charge carriers is a paramount requirement for the device efficiency. To ensure the long lifetime, a high temperature t...

In this work core/shell composite polymer/TiO₂ nanofibers and from those TiO₂ nanotubes were prepared. First, poly(vinyl alcohol) (PVA) and poly(vinylpyrrolidone) (PVP) fibers were synthetized by electrospinning. They were covered with a 100 nm thick...

In this work, brookite TiO₂ nanocrystals with co-exposed {001} and {120} facets (pH0.5-T500-TiO₂ and pH11.5-T500-TiO₂), rutile TiO₂ nanorod with exposed {110} facets and anatase TiO₂ nanocrystals with exposed {101} facets (pH3.5-T500-TiO₂) and {101}/...

The microstructures and microwave dielectric properties of (Mg_0.6Zn_0.4)_0.95Ni_0.05TiO₃ with Ca_0.6La_0.8/3TiO₃ and Ca_0.8Sm_0.4/3TiO₃ additions prepared by the solid-state method has been investigated. The crystallization and microstructures of these two...

In order to improve the photocatalytic activity of TiO₂, we successfully loaded nano-CuO on the TiO₂ nanomeshes as CuO-TiO₂ nanocomposites through a facile electrodeposition method. The optimized calcined temperature after Cu electrodeposition is con...

The preparation of TiO₂ nanocrystallite powders coated with and without 9 mol% ZnO has been studied for cosmetic applications in sunscreens by a co-precipitation process using TiCl₄ and Zn(NO₃)₂·6H₂O as starting materials. XRD results show that the p...

The microstructural evolution of Dy₂O₃-TiO₂ powder mixtures during ball milling and post-milled annealing was investigated using XRD, SEM, TEM, and DSC. At high ball-milling rotation speeds, the mixtures were fined, homogenized, nanocrystallized, and...

The study demonstrates that the introduction of the electrochemically inactive dielectric additive Li₂TiO₃ to LTO results in a strong decrease in the grain boundary resistance of LTO-Li₂TiO₃ (LTC) composites at a low concentration of Li₂TiO₃. With th...

An aqueous extract of Syzygium cumini seeds was utilized to green synthesize titanium dioxide nanoparticles (TiO₂ NPs). UV-Visible, DLS, FTIR, XRD, FESEM, TEM, SAED, EDAX, and photoluminescence spectroscopy techniques were employed to characterize th...

High-density and highly cross-coated anatase TiO₂ nanotubes networks have been successfully prepared on the surface of Ti foil by alkaline hydrothermal using NaOH and Ti foil as the precursors. The nanotubes networks were analyzed using X-ray diffrac...

The preparations of crystal titanium dioxide (TiO₂) are often time-consuming multistep processes involving high temperature. Rapid and efficient methods to obtain TiO₂ with anatase or rutile phase are desirable. In this paper, we describe an ultrafas...

{001}TiO₂/TiOF₂ photocatalytic composites with a high activity {001} crystal plane were prepared by one-step hydrothermal methods using butyl titanate as a titanium source and hydrofluoric acid as a fluorine source. X-ray diffraction (XRD), scanning...

TiO₂ thin film coatings significantly improve catalyst separation in photocatalytic processes. They can be applied in heterogeneous photocatalysis under sunlight by mixing TiO₂ with other oxides, such as CeO₂, for the removal of pollutants in water....

All-inorganic lead halide perovskite has emerged as an attractive semiconducting material due to its unique optoelectronic properties. However, its poor environmental stability restricts its broad application. Here, a simple method for the fabricatio...

Titanium dioxide (TiO₂) is considered to be a nontoxic material and is widely used in a number of everyday products, such as sunscreen. TiO₂ nanoparticles (NP) are also considered as prospective agents for photodynamic therapy and drug delivery. Thes...

Evolution of the crystal structure of ceramics BiFeO₃–BaTiO₃ across the morphotropic phase boundary was analyzed using the results of macroscopic measuring techniques such as X-ray diffraction, differential scanning calorimetry, and differentia...

Tannin-modified Li₂TiO₃ powders (TA-Li₂TiO₃) were prepared by a precipitation-peptization process with titanium sulfate as the titanium source, lithium acetate as the lithium source, ammonia as the precipitator, and hydrogen peroxide as the complexin...

A Zr⁴⁺-doped anatase TiO₂ nanotube array electrode was prepared using a process that included Ti anodizing, chemical immersion, and heat treatment. The compositions, microstructure, and electrochemical properties of the prepared electrodes were chara...

In situ formation of TiB₂–Mg₂TiO₄ composites was investigated by combustion synthesis involving the solid-state reaction of Ti with boron and magnesiothermic reduction of B₂O₃. Certain amounts of MgO and TiO₂ were added to the reactant mixtures...

In this article, HBP-NH₂-modified titania nanowire (TiO_2NWS)-decorated Au nanoparticles (TiO_2NWS@Au_NPS) were synthesized by one-step method. The role of HBP-NH₂ concentration in the formation of TiO_2NWS was investigated. The fineness and uniformity o...

Pd-Ni/TiO₂ composite coatings were elaborated on 316L stainless steel by an electrodeposition method. The specimens were obtained from an electrolytic bath that contained various contents (5, 10, and 15 g L⁻¹) of nanosized TiO₂ particles. X-ray...

Recyclable visible-light photocatalyst Fe₃O₄@TiO₂ with core-shell structure was prepared by a simple synthetic strategy using solvothermal crystallization of titanium precursor on preformed Fe₃O₄ nanopartiles. The photo-degradation reaction of neutra...

TiO₂ is a semiconductor material with high chemical stability and low toxicity. It is widely used in the fields of catalysis, sensing, hydrogen production, optics and optoelectronics. However, TiO₂ photocatalyst is sensitive to ultraviolet (UV) light...

Gd-doped TiO₂ nanotube arrays with 3D ordered and high specific surface (176 m²/g) area are successfully prepared on a Ti foil surface via an anodizing method. The characterizations of Gd-doped TiO₂ nanotube arrays are carried out using X-ray diffrac...

Heterojunction photocatalytic materials show excellent performance in degrading toxic pollutants. This study investigates the influence of calcination temperature on the performances of floral Bi₂O₃/TiO₂ composite photocatalyst crystal, which was pre...