TiO2 nanobelts – Effect of calcination temperature on optical, photoelectrochemical and photocatalytic properties

Chen, Qinghua; Liu, Huiling; Xin, Yanjun; Cheng, Xiuwen

doi:10.1016/j.electacta.2013.08.049

Cited by 70 publications

(23 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under calcinating at the relative lower temperatures(400 and 450℃), there were various surface defects existing on the surface of TiO 2 nanosheets because of the lower crystallinity, resulting in the smaller TPR and OCP [32]. In Fig.4b, the OCP growth rate of TiO 2 -BNSs-500 was the fastest, which meant that the least time was required when rising OCP to a specific value and a more sensitive and effective separation of the photoinduced charge carriers was achieved.…”

Section: Photoelectrochemical Performancesmentioning

confidence: 99%

“…However, the results showed that the subsequent calcination treatment had a crucial influence on the surface morphology, crystallite size, crystallinity, phase composition and photocatalytic properties of TiO 2 -based nanomaterials [32,33].…”

Section: Introductionmentioning

confidence: 99%

“…The lower PL intensity for the TiO 2 -BNSs-500 compared to that of TiO 2 -BNSs-400 and TiO 2 -BNSs-450 might be due to the higher crystallization and the relatively uniform and regular nanosheet structure, which could lead to a higher utilization of the light. The stronger PL intensity of the TiO 2 -BNSs-550 and TiO 2 -BNSs-600 could be ascribed the excessive rutile phase and the destruction of the surface microstructure[32].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Preparation and characterization of TiO 2 -based nanosheets for photocatalytic degradation of acetylsalicylic acid: Influence of calcination temperature

Liu

Cheng

et al. 2015

Chemical Engineering Journal

Self Cite

View full text Add to dashboard Cite

Section: Photoelectrochemical Performancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Preparation and characterization of TiO 2 -based nanosheets for photocatalytic degradation of acetylsalicylic acid: Influence of calcination temperature

Liu

Cheng

et al. 2015

Chemical Engineering Journal

Self Cite

View full text Add to dashboard Cite

“…The presence of these two peaks indicate that N 2 O 2 2-and NO -species could be chemisorbed on the surface of the synthesized TiO 2 and not affected as they had undergone calcination processes up to 400°C. In the present study, almost all the prepared TiO 2 samples were activated in the visible light, which might be ascribed to the N doping during the preparation process using HNO 3 [20]. The optical response of the prepared TiO 2 was investigated by means of UV-Vis absorption spectra, as shown in Fig.…”

Section: Morphological Analysismentioning

confidence: 99%

Structural characterization of N-doped anatase–rutile mixed phase TiO2 nanorods assembled microspheres synthesized by simple sol–gel method

Mohamed

Salleh

Jaafar

et al. 2015

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

In this study, N-doped anatase-rutile mixed phase TiO 2 nanorods assembled microspheres were synthesized via a direct and simple sol-gel method. The physical analysis via X-ray diffraction indicated that the prepared sample had a mixed phase of anatase and rutile TiO 2 . The morphology of the structure was observed with field emission scanning electron microscopy, transmission electron microscopy and atomic force microscopy, which showed that the formation of TiO 2 microspheres was constructed by TiO 2 nanorods or rice like structure nanorods. Besides, Fourier transform infrared analysis revealed that the presence of N 2 O 2 2-and NO -species in the spectra while XPS study indicated the incorporation of nitrogen as dopant in TiO 2 at binding energies of 396.8, 397.5, 398.7, and 399.8 eV. Furthermore, the optical properties determined by UV-Vis spectroscopy concluded that the prepared sample exhibited excellent optical responses to UV and visible region as well as being a potential material for degradation of hazardous water pollutants. The photocatalytic activity of the prepared TiO 2 exhibits excellent photodegradation of methylene blue under UV and visible light irradiation. Graphical AbstractKeywords N-doped TiO 2 nanorods Á Anatase/Rutile Á UV-visible irradiation Á Sol-gel preparation Á Structural characterization 1 Introduction

show abstract

“…Highly crystalline (less internal traps) one-dimensional (1D) or 2D nanostructures, such as wires [13,14], tubes [15,16], rods [17,18], belts [19,20], fibers [21][22][23], and sheets [24,25], have attracted much attention because of their faster electron transport.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Hierarchical Anatase for Dye-sensitized Solar Cells Achieving Over 10% Conversion Efficiency

Lin

Heo

Nattestad

et al. 2015

Electrochimica Acta

View full text Add to dashboard Cite

Interest in both one-dimensional and hierarchical architectures of metal oxide semiconductors have intensified within the field of materials science over recent years. Herein, a new mesoporous anatase TiO 2 architecture that combines these two concepts, as it is composed of individual, high-aspect-ratio, nanoribbon-like components, was synthesized via a facile hydrothermal method without any surfactant or template. An 8.3 % solar-to-electric conversion efficiency was obtained when these structures were used in photoanodes for dye-sensitized solar cells, which are superior to commercial state-of-the-art TiO 2 (6.6 %), due to enhanced dye loading and efficient light scattering. To further improve the light scattering effect, a bi-layer structure was rationally designed (with this architecture as a scattering layer on top of a transparent, 12-µm-thick layer of nanocrystalline TiO 2 ). A high efficiency of 10.3 % was achieved, compared with an efficiency of 8.2 % for the control electrode (optimized transparent/reflective commercial titania paste) with a scattering layer of similar thickness.

show abstract

TiO2 nanobelts – Effect of calcination temperature on optical, photoelectrochemical and photocatalytic properties

Cited by 70 publications

References 55 publications

Preparation and characterization of TiO 2 -based nanosheets for photocatalytic degradation of acetylsalicylic acid: Influence of calcination temperature

Preparation and characterization of TiO 2 -based nanosheets for photocatalytic degradation of acetylsalicylic acid: Influence of calcination temperature

Structural characterization of N-doped anatase–rutile mixed phase TiO2 nanorods assembled microspheres synthesized by simple sol–gel method

Mesoporous Hierarchical Anatase for Dye-sensitized Solar Cells Achieving Over 10% Conversion Efficiency

Contact Info

Product

Resources

About