Fabrication and Photocatalytic Activity of TiO&lt;sub&gt;2&lt;/sub&gt;/MoO&lt;sub&gt;3&lt;/sub&gt; Particulate Films

Natori, Hirotaka; Kobayashi, Koichi; Takahashi, Masashi

doi:10.5650/jos.58.203

Cited by 21 publications

(7 citation statements)

References 49 publications

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“…However, in most cases, the nucleation–growth routes likely require complicate high-cost facilities or stringent synthetic conditions involving high-temperature substrates, high vacuum/pressure, risk of residues left from the precursors, limitation of targeted materials, acceleration voltage or electrical biasing, sensitiveness to substrate surface morphology, and so on. − The second approach is to direct TiO 2 -based sols or colloids onto substrate surfaces and then convert them into thin films by different kinds of post-treatments. Examples of the latter approach can be found in sol-gel thin-film processing, Langmuir–Blodgett technique, , and electrophoretic deposition of nanoparticles . It was reported that layer-by-layer deposition of multilayers of inorganic colloidal particles, in particular, has been prevailing for TiO 2 film fabrication because of its versatility, ease of applying coating, and high quality of film thickness control. − Because separate process operations can be well-controlled, the second approach is also applied extensively for the film production.…”

Section: Introductionmentioning

confidence: 99%

TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

Verma

et al. 2012

ACS Appl. Mater. Interfaces

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Low-cost controllable solution-based processes for preparation of titanium oxide (TiO(2)) thin films are highly desirable, because of many important applications of this oxide in catalytic decomposition of volatile organic compounds, advanced oxidation processes for wastewater and bactericidal treatments, self-cleaning window glass for green intelligent buildings, dye-sensitized solar cells, solid-state semiconductor metal-oxide solar cells, self-cleaning glass for photovoltaic devices, and general heterogeneous photocatalysis for fine chemicals etc. In this work, we develop a solution-based adsorptive self-assembly approach to fabricate anatase TiO(2) thin films on different glass substrates such as simple plane glass and patterned glass at variable compositions (normal soda lime glass or solar-grade borofloat glass). By tuning the number of process cycles (i.e., adsorption-then-heating) of TiO(2) colloidal suspension, we could facilely prepare large-area TiO(2) films at a desired thickness and with uniform crystallite morphology. Moreover, our as-prepared nanostructured TiO(2) thin films on glass substrates do not cause deterioration in optical transmission of glass; instead, they improve optical performance of commercial solar cells over a wide range of incident angles of light. Our as-prepared anatase TiO(2) thin films also display superhydrophilicity and excellent photocatalytic activity for self-cleaning application. For example, our investigation of photocatalytic degradation of methyl orange indicates that these thin films are indeed highly effective, in comparison to other commercial TiO(2) thin films under identical testing conditions.

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Section: Introductionmentioning

confidence: 99%

TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

Verma

et al. 2012

ACS Appl. Mater. Interfaces

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“…The higher photocatalytic efficiency of the ZnO:MoO 3 (S5) nanostructures can be accounted for by decreasing Eg values compared to pure ZnO, a fact confirmed by other authors in differently doped ZnO-based systems [ 31 , 32 ]. Moreover, the increase in photocatalytic activity with the content of MoO 3 may be due to the formation of MoO 3 /ZnO heterojunctions, as reported by Hirotaka et al [ 33 ] for a similar system (TiO 2 /MoO 3 ).…”

Section: Resultsmentioning

confidence: 55%

New Electrospun ZnO:MoO3 Nanostructures: Preparation, Characterization and Photocatalytic Performance

Pascariu¹,

Homocianu²,

Olaru³

et al. 2020

Nanomaterials

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New molybdenum trioxide-incorporated ZnO materials were prepared through the electrospinning method and then calcination at 500 °C, for 2 h. The obtained electrospun ZnO:MoO3 hybrid materials were characterized by X-ray diffraction, scanning and transmission electron microscopies, ultraviolet (UV)-diffuse reflectance, UV–visible (UV–vis) absorption, and photoluminescence techniques. It was observed that the presence of MoO3 as loading material in pure ZnO matrix induces a small blue shift in the absorption band maxima (from 382 to 371 nm) and the emission peaks are shifted to shorter wavelengths, as compared to pure ZnO. Also, a slight decrease in the optical band gap energy of ZnO:MoO3 was registered after MoO3 incorporation. The photocatalytic performance of pure ZnO and ZnO:MoO3 was assessed in the degradation of rhodamine B (RhB) dye with an initial concentration of 5 mg/L, under visible light irradiation. A doubling of the degradation efficiency of the ZnO:MoO3 sample (3.26% of the atomic molar ratio of Mo/Zn) as compared to pure ZnO was obtained. The values of the reaction rate constants were found to be 0.0480 h−1 for ZnO, and 0.1072 h−1 for ZnO:MoO3, respectively.

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“…Agarwal 等 [13] 通过对 Ti-Mo 合金阳极氧化制得了 TiO2-MoO3 复合半导体纳米管, 结果表明其光催化活性要好于单纯的 TiO2 纳米管. Natori 等 [14] 采用 Langmuir-Blodgett 技术制备出了 TiO2/MoO3 膜, 研究发现 TiO2/MoO3 膜的光催化活性相对于单层的 TiO2膜显著增强. Takahashi 等 [15] 采用旋转包覆技术制得了 TiO2-MoO3 复合膜.…”

Section: 作为一种相对低廉、稳定的半导体材料 Tio2unclassified

Preparation and Visible Light Photoelectrochemical Response of TiO<sub>2</sub>-MoO<sub>3</sub> Composite Nanotube Thin Films

Luo¹,

复旦大学材料科学系²,

Cui³

et al. 2011

Acta Physico-Chimica Sinica

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TiO2-MoO3复合纳米管阵列薄膜. 利用 X 射线衍射(XRD), 扫描电子显微镜(SEM), X 射线光电子能谱(XPS), 电化学阻抗谱(EIS), Mott-Schottky 及光电化学方法对得到的薄膜进行了表征. XRD 结果表明, TiO2-MoO3复合纳米管薄膜中的 TiO2主要为锐钛矿晶型. SEM 实验证实了薄膜纳米管结构的存在, 样品中的 MoO3均匀地分散在 TiO2纳米管表面. 利用 XPS 方法分析了 TiO2-MoO3复合纳米管薄膜元素的组成, 结果表明, MoO3在 TiO2表面形成 TiO2-MoO3复合纳米管薄膜. 研究了热处理温度以及热处理时间对样品的光电化学性能的影响, 相对于单纯 TiO2纳米管薄膜, 适量引入 MoO3提高了样品在可见光区的光电响应能力, 样品的平带电位负移. 在 450°C 热处理 60 min 制得的 TiO2-MoO3复合半导体纳米管阵列薄膜光电响应活性最高.

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Fabrication and Photocatalytic Activity of TiO<sub>2</sub>/MoO<sub>3</sub> Particulate Films

Cited by 21 publications

References 49 publications

TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

New Electrospun ZnO:MoO3 Nanostructures: Preparation, Characterization and Photocatalytic Performance

Preparation and Visible Light Photoelectrochemical Response of TiO<sub>2</sub>-MoO<sub>3</sub> Composite Nanotube Thin Films

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Fabrication and Photocatalytic Activity of TiO<sub>2</sub>/MoO<sub>3</sub> Particulate Films

Cited by 21 publications

References 49 publications

TiO2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

TiO2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

New Electrospun ZnO:MoO3 Nanostructures: Preparation, Characterization and Photocatalytic Performance

Preparation and Visible Light Photoelectrochemical Response of TiO<sub>2</sub>-MoO<sub>3</sub> Composite Nanotube Thin Films

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TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

TiO₂ Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications