Search Results - "OHTANI, Bunsho"

Preparing Articles on Photocatalysis—Beyond the Illusions, Misconceptions, and Speculation by Ohtani, Bunsho

“…A growing number of papers on research subjects relating to photocatalysis have and will continue to be submitted and published in scientific journals. Some of…”
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Titania Photocatalysis beyond Recombination: A Critical Review by Bunsho Ohtani

“…This short review paper shows the significance of recombination of a photoexcited electron and a hole in conduction and valence bands, respectively, of a…”
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Substitutionally rhodium(IV)-doped titania showing photocatalytic activity toward organics oxidation under visible-light irradiation by Yang, Shubin, Ohtani, Bunsho

“…[Display omitted] •Titania directly doped with rhodium(IV) was successfully synthesized.•Titanium(IV) is possibly substituted by rhodium(IV) in the crystalline…”
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Visible-Light-Induced Water Splitting Based on Two-Step Photoexcitation between Dye-Sensitized Layered Niobate and Tungsten Oxide Photocatalysts in the Presence of a Triiodide/Iodide Shuttle Redox Mediator by Abe, Ryu, Shinmei, Kenichi, Koumura, Nagatoshi, Hara, Kohjiro, Ohtani, Bunsho

“…Water splitting into H2 and O2 under visible light was achieved using simple organic dyes such as coumarin and carbazole as photosensitizers on an n-type…”
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Cubic Cu2O nanoparticles decorated on TiO2 nanofiber heterostructure as an excellent synergistic photocatalyst for H2 production and sulfamethoxazole degradation by Sekar, Karthikeyan, Chuaicham, Chitiphon, Vellaichamy, Balakumar, Li, Wei, Zhuang, Wei, Lu, Xiaohua, Ohtani, Bunsho, Sasaki, Keiko

“…[Display omitted] •Cubic Cu2O (20-−100 nm) synthesis on TiO2 nanofiber.•Cube-on-nanofiber showed excellent photocatalytic H2 production and sulfamethoxazole…”
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Hidden but Possibly Fatal Misconceptions in Photocatalysis Studies: A Short Critical Review by Bunsho Ohtani

“…This short review paper shows some misconceptions hidden in the discussion on the mechanism of heterogeneous photocatalysis, which may lead to fatal errors in…”
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Direct Amorphous-structure Analysis: How are Surface/Bulk Structure and Activity of Titania Photocatalyst Particles Changed by Milling? by Chen, Guangyi, Takashima, Mai, Ohtani, Bunsho

“…Changes in surface and bulk structures of rutile titania particles induced by braying up to 10 d and post calcination in air at 773 K were analyzed by reversed…”
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Interparticle electron transfer in methanol dehydrogenation on platinum-loaded titania particles prepared from P25 by Wang, Kunlei, Wei, Zhishun, Ohtani, Bunsho, Kowalska, Ewa

“…[Display omitted] •Interparticle electron transfer between different and same phases of titania.•Sample annealing results in formation of titania…”
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Pristine Simple Oxides as Visible Light Driven Photocatalysts: Highly Efficient Decomposition of Organic Compounds over Platinum-Loaded Tungsten Oxide by Abe, Ryu, Takami, Hitoshi, Murakami, Naoya, Ohtani, Bunsho

“…Tungsten oxide loaded with nanoparticulate platinum is demonstrated to exhibit high activity for the decomposition of organic compounds both in liquid and gas…”
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Visible light activity of rare earth metal doped (Er3+, Yb3+ or Er3+/Yb3+) titania photocatalysts by Reszczyńska, Joanna, Grzyb, Tomasz, Sobczak, Janusz W., Lisowski, Wojciech, Gazda, Maria, Ohtani, Bunsho, Zaleska, Adriana

“…•Er/Yb co-doping enhanced the photocatalytic activity under visible irradiation.•Oxygen vacancies and surface defects are created due to TiO2 substitution by…”
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Combined Spectroscopic Methods of Determination of Density of Electronic States: Comparative Analysis of Diffuse Reflectance Spectroelectrochemistry and Reversed Double-Beam Photoacoustic Spectroscopy by Kobielusz, Marcin, Nitta, Akio, Macyk, Wojciech, Ohtani, Bunsho

“…The diffuse reflectance spectroelectrochemistry (SE-DRS) and reversed double-beam photoacoustic spectroscopy (RDB-PAS) provide unique, complementary…”
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Fluorine-Doped TiO2 Materials: Photocatalytic Activity vs Time-Resolved Photoluminescence by Dozzi, Maria Vittoria, D’Andrea, Cosimo, Ohtani, Bunsho, Valentini, Gianluca, Selli, Elena

“…Aiming at discerning the role of fluorine from that of nitrogen as a dopant in N,F-codoped TiO2, a series of HF-doped TiO2 photocatalysts were investigated in…”
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Fabrication and characterization of ternary sepiolite/g-C3N4/Pd composites for improvement of photocatalytic degradation of ciprofloxacin under visible light irradiation by Chuaicham, Chitiphon, Pawar, Radheshyam Rama, Karthikeyan, Sekar, Ohtani, Bunsho, Sasaki, Keiko

“…[Display omitted] The development of high-quality photocatalytic materials for the degradation of organic pollutants under visible light irradiation is a vital…”
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Great Challenges in Catalysis and Photocatalysis by Ohtani, Bunsho

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Catalytic activities of titania-supported nickel for carbon-dioxide methanation by Unwiset, Preeya, Chanapattharapol, Kingkaew Chayakul, Kidkhunthod, Pinit, Poo-arporn, Yingyot, Ohtani, Bunsho

“…[Display omitted] •Ni addition was incorporated into the TiO2 lattice and/or dispersed as NiO.•Upon increasing of Ni addition, Ni substitution and NiO phase…”
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Single-step synthesis of oxygen-doped hollow porous graphitic carbon nitride for photocatalytic ciprofloxacin decomposition by Chuaicham, Chitiphon, Sekar, Karthikeyan, Xiong, Yihuang, Balakumar, Vellaichamy, Mittraphab, Yanisa, Shimizu, Kuniyoshi, Ohtani, Bunsho, Dabo, Ismaila, Sasaki, Keiko

“…[Display omitted] •O-doped hollow porous surface C3N4 (OCN) was produced by a one-pot synthesis.•OCN has excellent photocatalytic CIP degradation under visible…”
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Fabrication of graphitic carbon nitride/ZnTi-mixed metal oxide heterostructure: Robust photocatalytic decomposition of ciprofloxacin by Chuaicham, Chitiphon, Sekar, Karthikeyan, Balakumar, Vellaichamy, Mittraphab, Yanisa, Shimizu, Kuniyoshi, Ohtani, Bunsho, Sasaki, Keiko

“…•CN/ZnTi-MMO exhibit robust ciprofloxacin degradation under visible light.•Interfacial electron traps avoid the charge recombination, leading to enhancing the…”
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Z-scheme heterojunction of graphitic carbon nitride and calcium ferrite in converter slag for the photocatalytic imidacloprid degradation and hydrogen evolution by Inoue, Takumi, Chuaicham, Chitiphon, Saito, Noritaka, Ohtani, Bunsho, Sasaki, Keiko

“…[Display omitted] •Co-calcination synthesized graphitic carbon nitride/converter slag composites (gCN/CS).•gCN/artCS and gCN/realCS enhanced hydrogen evolution…”
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Do Particles Interact Electronically? —Proof of Interparticle Charge-transfer Excitation between Adjoined Anatase and Rutile Particles by Shen, Yang, Nitta, Akio, Takashima, Mai, Ohtani, Bunsho

“…Here, we report experimental evidence of interparticle spatial overlapping of orbitals to result in interparticle charge-transfer excitation (ICTE) at an…”
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Importance of ZnTiO3 Phase in ZnTi-Mixed Metal Oxide Photocatalysts Derived from Layered Double Hydroxide by Chuaicham, Chitiphon, Karthikeyan, Sekar, Song, Jun Tae, Ishihara, Tatsumi, Ohtani, Bunsho, Sasaki, Keiko

“…In this study, ZnTi-mixed metal oxides (ZTM), such as ZnTiO3, were synthesized from ZnTi layered double hydroxides by varying the molar ratio of Zn/Ti,…”
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