Rutile-type Ge x Sn1−x O2 alloy layers lattice-matched to …
Rutile-type (r-) metal oxides, such as r-GeO 2, r-SnO 2, r-TiO 2, and their alloys, have recently emerged as a new class of wide-band-gap semiconductors, due to their favorable electrical properties. 1,2) Very recently, r-GeO 2 has attracted attention as a novel semiconductor having superior physical properties, including the widest direct …
Rutile's fiery brilliance
Rutile is the most thermodynamically sta-ble form of titanium dioxide — TiO2 — under most geologic conditions, and typically occurs as an accessory mineral in metamor-phic and …
Modeling Water Adsorption on Rutile (110) Using Van Der …
This work explored the interfacial configuration of As(V) on single crystal rutile using grazing-incidence X-ray absorption fine structure spectroscopy (GI-XAFS) and planewave density functional calculations with on-site repulsion (DFT+U), and found the lowest adsorption energy among five possible alternatives. Expand
Self-assembly of multilevel branched rutile-type TiO
Using rutile-type TiO 2, synthesized by hydrothermal reaction of Ti(IV)-butoxide in highly acidic aqueous medium, we uncovered the key processes controlling this nonclassical crystallization process.
Frontiers | First-Principles Design of Rutile Oxide …
We screened 11 rutile-type TMOs (i.e., MO2; M = V, Cr, Mn, Nb, Ru, Rh, Sn, Ta, Os, Ir, and Pt) on a rutile (110) substrate using density functional theory calculations to determine their OER activities. The conventional volcano approach based on simple binding energies of reaction intermediates was implemented; in addition, the …
(PDF) Using DFTB to Model Photocatalytic Anatase–Rutile …
called type II rutile alignment (using the nomenclature of ref. 3) for small rutile nanocrystals, where rutile acts as an electron. trap and anatase as a hole trap. Increasing the size of the rutile
Solved MgF2 has a type of rutile-like structure. a. Sketch a
Confirm the stoichiometry of MgF2 by using the solid state structure. MgF2 has a type of rutile-like structure. a. Sketch a unit cell of MgF2. b. Confirm the stoichiometry of MgF2 by using the solid state structure. Here's the best way to solve it.
Electronic properties of rutile and anatase TiO2 and their …
Photocatalysis is a promising technique for utilizing solar light in chemical synthesis. Among several effective photocatalysts, TiO 2 remains the archetypal representative. Using density functional theory calculations, we characterized the geometric, mechanical, electronic and optical properties of rutile and anatase TiO 2.We …
Rutile: Mineral information, data and localities.
The most common member of the Rutile Group.Rutile is one of the five forms of titanium dioxide, TiO 2, found in nature. Sellaite (magnesium fluoride, MgF 2) also has a rutile-type structurepare 'UM1987-04-O:Ti'. Note on the type locality: Since Werner introduced rutile in 1800, Horcajuelo de la Sierra (originally erronously reported as Cajuelo, which is …
[PDF] Photocatalytic activity of bulk TiO2 anatase and rutile …
The anatase (101) surface shows a substantially higher activity, by an order of magnitude, for CO photo-oxidation to CO(2) than the rutile (110) surface, which tracks the bulk e-h pair lifetime difference for the two TiO( 2) modifications as determined by contactless transient photoconductance measurements on the corresponding bulk …
In situ SIMS U-Pb dating of hydrothermal rutile: reliable
Rutile crystals were identified in the polished thin sections of a mineralized mafic dyke sample (ZSH-07) from the orebody III of the Zhesang Carlin-type gold deposit. The rutile grains then were separated from the whole rock using heavy liquids and magnetic separation, and hand-picking under a microscope.
Electronic structure, stability, and magnetism of rutile-type …
In this study, based on density functional theory, we predicted the electronic structure, stability, and magnetism of ultrathin rutile-type TiO 2 nanotubes (u-TiO 2 NTs) with different curvatures. The curvature energy calculations showed that the (m, 0) u-TiO 2 NTs follow the classical elasticity theory.As the diameter of the NTs increases, the wall …
Rutile and its applications in earth sciences
Rutile is the most common naturally occurring titanium dioxide polymorph and is widely distributed as an accessory mineral in metamorphic rocks ranging from …
3.22: Spinel, Perovskite, and Rutile Structures
The rutile structure is an important MX 2 (X = O, F) structure. It is a 6:3 structure, in which the cations are octahedrally coordinated by anions, and as such is intermediate in polarity between the CaF 2 (8:4) and SiO 2 (4:2) structures. The mineral rutile is one of the polymorphs of TiO 2, the others (anatase and brookite) also being 6:3 ...
Rutile's fiery brilliance | Nature Geoscience
1 Altmetric. Metrics. From pressure indicator to paint brightener, Alicia Cruz-Uribe examines the many uses of rutile. Few minerals can tick as many boxes as rutile. …
Rutile
Rutile produces many crystalline, speckling, streaking, and mottling effects in glazes during cooling in the kiln and has been used in all types of colored glazes to enhance the surface character. It is thus highly prized by potters, many attractive variegated glazes are …
Rutile and its applications in earth sciences
Rutile is an economically important mineral because of its use in the manufacture of white titanium dioxide pigment (Stanaway, 1994, Korneliussen et al., 2000), which is a component in products of our daily life such as paint, paper, plastics, toothpaste and sunscreen cream (Pearson, 1999, Carp et al., 2004, Gambogi, 2008).
Froth flotation of rutile – An overview
In rutile flotation system, a number of depressants are being used either organic or inorganic or a combination of the above two types. Depressants are key regulators in rutile flotation. Depressants which are commonly used in rutile flotation schemes mainly fall in two classes; inorganic and organic depressants. 6.1.
A recipe for the use of rutile in sedimentary provenance analysis
Rutile has received considerable attention in the last decade as a valuable petrogenetic indicator mineral. Based on both new and previously published data, we carve out advantages and pitfalls ...
Preparation and Raman Spectrum of Rutile Single Crystals Using …
With anatase-type titanium dioxide as the raw materials, the rutile type titanium dioxide single crystal is prepared using the floating zone method. The results of XRD measurement show that the grown crystal is highly crystalline with a rutile structure, which has orientation to the c-axis. The four Raman vibration characteristic peaks (143, 240, 450 and 610 …
Tracking cycles of Phanerozoic opening and closing of ocean …
We use detrital zircon U-Pb and detrital rutile U-Pb geochronology and trace element analysis of Permian to Eocene siliciclastic rocks in the southern Pyrenees to capture supercontinent cycles of ocean basins opening and closing. Detrital rutile age spectra show peaks at ca. 100 Ma associated with rifting and hyperextension in the Pyrenean ...
Determination of the phase boundary of the ferroelastic …
reverted to the rutile-type structure, and the sample recovered under ambient conditions also had the rutile-type structure. In the next experiment the sample was compressed to ∼30 GPa at room temperature. All the observed peaks in the Ramanspectrumshiftedtothehigh-frequencyregion(Fig.2). The E g mode in the rutile …
Rutile Properties, Uses, Formation » Geology Science
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(PDF) Rutile: Properties, Synthesis and ApplicationsWEBRutile has minor uses in porcelain and glass manufacture as a colouring agent and in making some steels and copper alloys. Rutile is …
Rutile
Uses. Because it has a very high index of refraction, rutile is used for many purposes in optics, a vast majority of which come from synthetic rutile, which was first produced in 1948. As a source of titanium dioxide …
Chemical bonding in rutile-type compounds | Semantic …
Chemical bonding in rutile-type compounds. We present an ab initio study of the bonding in the rutile (TiO 2 ) structure, where the five members TiO 2, VO 2, CrO 2, RuO 2, and ZnF 2 are investigated by means of band structure calculations, from which we derive electron densities, densities of states, total energies, and structure factors.
Effect of boron-doping on thermoelectric properties of rutile-type
The rutile-type TiO2 powder was mixed with B2O3, TiB2 or B and the mixtures were sintered using the pulse current sintering method at 1473K. Secondary ion mass spectroscopy (SIMS) and X-ray ...
Rutile: Mineral of Many Uses
Rutile: Mineral of Many Uses. Rutile [TiO2] is the most abundant naturally-occurring form of titanium dioxide. Long recognized for its value and use in manufacturing and industry, it has more recently gained recognition and popularity amongst collectors, due to its newly discovered ability to aid in rock and mineral research.
High photoactivity rutile-type TiO2 particles co-doped with …
Rutile-type titanium dioxide (TiO 2) particles were prepared by using a modified hydrothermal method as reported previously . 5 ml of titanium tetrachloride was added drop-wise in 5 ml of anhydrous ethanol solution under vigorous stirring at 20 °C. The mixture was then diluted with 70 ml of deionized water under stirring.
Rutile
Published: 19.11.2018 11:20. Last updated: 08.03.2023 11:02. Rutile is a mineral of many forms and colors. It is quite widespread accessory mineral in many rocks but nice crystals are much less common. Rutile is also …
Using DFTB to Model Photocatalytic Anatase-Rutile TiO$_2
with rutile nanocrystals of type presented in Ref. 3, one obtains a so-called type II rutile alignment (using the nomenclature of Ref. 3) for small rutile nano crystals, where rutile acts as an ...