Results 21 to 30 of about 3,174 (219)

XV. The crystal structure of brookite [PDF]

Zeitschrift für Kristallographie - Crystalline Materials, 1928
None.
Pauling, Linus, Sturdivant, J. H.
openaire   +2 more sources

Comparison on the TiO2 crystalline phases deposited via dip and spin coating using green sol–gel route

Journal of Materials Research and Technology, 2019
TiO2 exist in three polymorphs known as anatase, rutile and brookite. Amongst these polymorphs, brookite are less reported and mostly produced as a by-product.
Nur Dalilah Johari, Zulkifli Mohd Rosli, Jariah Mohamad Juoi, Shuhadah A. Yazid   +3 more
doaj   +1 more source

Photocatalytic Degradation of Crystal Violet Dye under Visible Light by Fe-Doped TiO₂ Prepared by Reverse-Micelle Sol–Gel Method

Nanomaterials, 2023
A reverse-micelle sol–gel method was chosen for the preparation of Fe-doped TiO2 samples that were employed in the photodegradation of the crystal violet dye under visible light irradiation in a batch reactor.
Antonietta Mancuso, Nicola Blangetti, Olga Sacco, Francesca Stefania Freyria, Barbara Bonelli, Serena Esposito, Diana Sannino, Vincenzo Vaiano   +7 more
doaj   +1 more source

Synthesis of Brookite Titanium Dioxide Nanorods using Salt-Assisted Ultrasonic Spray Pyrolysis Process and their Photocatalytic Activities [PDF]

Archives of Metallurgy and Materials
Here, We present the first-ever synthetic method based on the salt-assisted ultrasonic spray pyrolysis process of pure brookite TiO2 nanorods. H2TiF6 and NaNO3 were used as a titanium precursor and salt for the synthesis, the NaNO3 contributes to the ...
Hee Yeon Jeon, Myeongjun Ji, Young Hwangbo, Gun-Jae Lee, Young-In Lee   +4 more
doaj   +1 more source

Heterophase Polymorph of TiO₂ (Anatase, Rutile, Brookite, TiO₂ (B)) for Efficient Photocatalyst: Fabrication and Activity

Nanomaterials, 2023
TiO2 exists naturally in three crystalline forms: Anatase, rutile, brookite, and TiO2 (B). These polymorphs exhibit different properties and consequently different photocatalytic performances.
Diana Rakhmawaty Eddy, Muhamad Diki Permana, Lintang Kumoro Sakti, Geometry Amal Nur Sheha, Solihudin, Sahrul Hidayat, Takahiro Takei, Nobuhiro Kumada, Iman Rahayu   +8 more
doaj   +1 more source

Pressure-Induced Phase Transitions of Natural Brookite [PDF]

, 2019
The structures and stabilities of the high-pressure phases of titania (TiO2) are of great interest in the earth sciences, as these phases are the accessible analogs of component minerals in the earth’s mantle.
Zhang, Hengzhong, Hou, Mingqiang, Weixin Liu (519888), Mingqiang Hou (6592979), Chen, Jian, Kunz, Martin, Xiaoliang Zhang (284283), Jian Chen (15340), Mingqiang Hou, Hengzhong Zhang, Jinyuan Yan, Martin Kunz, Liu, Weixin, Martin Kunz (1271922), Jian Chen, Xiaoliang Zhang, Jinyuan Yan (4326544), Hengzhong Zhang (62987), Dongzhou Zhang (4267552), Zhang, Xiaoliang, Yan, Jinyuan, Weixin Liu, Dongzhou Zhang, Zhang, Dongzhou   +23 more
core   +1 more source

Ti-Nb Mineralization of Late Carbonatites and Role of Fluids in Its Formation: Petyayan-Vara Rare-Earth Carbonatites (Vuoriyarvi Massif, Russia)

Geosciences, 2018
This article is devoted to the geology of titanium-rich varieties of the Petyayan-Vara rare-earth dolomitic carbonatites in Vuoriyarvi, Northwest Russia. Analogues of these varieties are present in many carbonatite complexes. The aim of this study was to
Evgeniy Kozlov, Ekaterina Fomina, Mikhail Sidorov, Vladimir Shilovskikh   +3 more
doaj   +1 more source

Tuning of perovskite solar cell performance via low-temperature brookite scaffolds surface modifications

APL Materials, 2017
The nature of metal oxide scaffold played a pivotal role for the growth of high quality perovskites and subsequently facilitates efficient photovoltaics devices.
Trilok Singh, Yosuke Udagawa, Masashi Ikegami, Hideyuki Kunugita, Kazuhiro Ema, Tsutomu Miyasaka   +5 more
doaj   +1 more source

Preparation Techniques of TiO2 Nanofluids and Challenges: A Review

Applied Sciences, 2018
Titanium dioxide (TiO2) has been used extensively because of its unique thermal and electric properties. Different techniques have been used for the preparation of TiO2 nanofluids which include single-step and two-step methods. In the natural world, TiO2
Hafiz Muhammad Ali, Hamza Babar, Tayyab Raza Shah, Muhammad Usman Sajid, Muhammad Arslan Qasim, Samina Javed   +5 more
doaj   +1 more source

Sol-Gel to Prepare Nickel Doped TiO2 Nanoparticles for Photocatalytic Treatment of E 131 VF Food Dye Wastewater [PDF]

Journal of Water and Environmental Nanotechnology, 2021
Sol–gel method was applied for synthesis of TiO2 nanoparticles in the existence of different volumes of ethanol (10–50 mL) with the purpose to find optimized synthesis conditions. Also, nickel doped TiO2 nanoparticles (Ni/TiO2 molar ratio: 0.1-1.0%) were
Malak Barakat, Rassil Khoder, Fatima Kassir, Zeinab Harajli, Mouhiaddine Mohamed El Jamal, Azadeh Ebrahimian Pirbazari   +5 more
doaj   +1 more source