Hydrothermal growth of well-aligned TiO2 nanorod arrays: Dependence of morphology upon hydrothermal reaction conditions

Li, Yuxiang; Zhang, Mei; Guo, Min; Wang, Xidong

doi:10.1007/s12598-010-0050-2

Cited by 44 publications

(20 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, it can be seen from Figure (a‐IV) that when the temperature increases from 140 to 180 °C, the top morphology of NRs changes from round into squares. This is in good agreement with previous results, and taken as indication of improvement in crystallization at high reaction temperatures.…”

Section: Resultssupporting

confidence: 93%

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Guller

Peksu

Karaağaç

2017

Physica Status Solidi (a)

View full text Add to dashboard Cite

TiO2 nanorods (NRs) are successfully synthesized on fluorine‐doped tin‐oxide pre‐coated glass substrates via hydrothermal technique. The effect of growth parameters on morphology of the synthesized NRs is investigated in detail. The results revealed that critical values for temperature, growth‐time, acidity, and precursor concentration are required for the synthesis of well‐aligned TiO2 NRs. Following the optimization of growth parameters, the well‐oriented TiO2 NRS are decorated with a thin‐sputtered layer of CdTe (CdCl2‐treated) to form a third generation inorganic‐sensitized solar cell. The power conversion efficiency associated with the constructed solar cell is found to be 0.42%, which is exactly 3.5 times larger than that obtained for the non‐CdCl2‐treated device structure. As a second part of this study, a Schottky‐type Ag/TiO2 UV‐photodetector is fabricated, which exhibited a drastic increase in photocurrent under UV‐light exposure, with a responsivity of ∼3 A W−1 for 380 nm at −1 V.

show abstract

Section: Resultssupporting

confidence: 93%

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Guller

Peksu

Karaağaç

2017

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…The complete MSCs were obtained when the concentration of TBT was above 60 mmol L −1 . High concentration of precursor can effectively promote the nucleation and growth of crystals [52]. At low concentration of titanium source, there were no enough Ti 4+ for the growth of complete morphology.…”

Section: The Key Factors Affecting the Morphologymentioning

confidence: 98%

Mesoporous TiO2 mixed crystals for photocatalytic pure water splitting

et al. 2020

View full text Add to dashboard Cite

Semiconductor mesoporous single crystals have attracted considerable attention due to the merits of excellent light absorption ability and large surface area for photocatalysis capability. However, most of the materials have a relative large size (~um), which can hardly suppress the recombination of photogenerated electrons and holes. In this work, we synthesized a series of nano mesoporous TiO 2 mixed crystals (brookite and rutile) with high carrier transfer efficiency, improved mass transfer and diffusion abilities, which are crucial for the outstanding photocatalytic performance. Meanwhile, the key factors in the growth process and mechanism of the mesoporous TiO 2 mixed crystals were addressed. With the assistance of Pt nanoparticles, H 2 and H 2 O 2 production can be simultaneously achieved and the efficiencies can reach up to 9.46 ± 0.56 and 3.29 ± 1.28 μmol mg −1 h −1 , respectively. The H 2 evolution rate is 2.8-fold higher than that of the reported TiO 2 nanoparticle catalyst (3.34 μmol mg −1 h −1). The excellent photocatalytic efficiency can be attributed to the special mixed crystal structure of the mesoporous TiO 2 crystals. This work provides new ideas and guidance for precise synthesis of nano mesoporous TiO 2 mixed crystals and enhancing their water splitting performance with high value-added products.

show abstract

“…The morphological features of the hydrothermally synthesized titanium oxide films were investigated using SEM and the images are shown in figures 2 and 3. Generally, hydrothermal process is proven to be an efficient method for growing inorganic materials from the supercritical state of solution achieved through heating the solution which increases the pressure and thus, the hydrothermal process results in the formation of nanostructured particles [30][31][32][33][34]. During the hydrothermal growth process, the solution becomes supercritical and facilitates the development of various microstructured titanium oxides on the seed layer.…”

Section: Morphological Propertiesmentioning

confidence: 99%

Development of pure rutile $$\hbox {TiO}_{2}$$ TiO 2 and Magneli titanium sub-oxide microstructures over titanium oxide-seeded glass substrates using surfactant-free hydrothermal process

et al. 2019

View full text Add to dashboard Cite

Titanium oxide seed layer was coated over glass substrates by sol-gel spin coating method. Single-step surfactant-free hydrothermal process developed titanium oxide microstructures over the titanium oxide-seeded glass substrates. Various morphologies of titanium oxide microstructures, varying from coral reefs to flower-like morphology were evolved by changing HCl concentration (1 and 3 M) in the precursor solution and growth temperature (GT) (120, 150 and 180 • C) of the hydrothermal process. Structural studies confirmed the formation of rutile TiO 2, TiO 2 + Ti 2 O 3 and Ti 4 O 7 microstructures due to varying the concentration of HCl (1 and 3 M) in the solution and GTs. Morphological studies revealed the possibility of engineering coral reefs, cauliflower, flowers, ball, cactus and jasmine flower-shaped microstructures of titanium oxide films by tuning the growth parameters. The indirect band gap of the titanium oxide microstructures derived from UV-Vis absorption spectra lies in the range of 2.9-3.02 eV.

show abstract

Hydrothermal growth of well-aligned TiO2 nanorod arrays: Dependence of morphology upon hydrothermal reaction conditions

Cited by 44 publications

References 20 publications

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Mesoporous TiO2 mixed crystals for photocatalytic pure water splitting

Development of pure rutile $$\hbox {TiO}_{2}$$ TiO 2 and Magneli titanium sub-oxide microstructures over titanium oxide-seeded glass substrates using surfactant-free hydrothermal process

Contact Info

Product

Resources

About

Hydrothermal growth of well-aligned TiO2 nanorod arrays: Dependence of morphology upon hydrothermal reaction conditions

Cited by 44 publications

References 20 publications

Synthesis of TiO2 Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Synthesis of TiO2 Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Mesoporous TiO2 mixed crystals for photocatalytic pure water splitting

Development of pure rutile $$\hbox {TiO}_{2}$$ TiO 2 and Magneli titanium sub-oxide microstructures over titanium oxide-seeded glass substrates using surfactant-free hydrothermal process

Contact Info

Product

Resources

About

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells

Synthesis of TiO₂ Nanorods for Schottky‐Type UV‐Photodetectors and Third‐Generation Solar Cells