Optical and structural properties of Fe–TiO2 thin films prepared by sol–gel dip coating

Kim, Nam Jin; La, Young Hoon; Im, Sang Hyeok; Ryu, Bong Ki

doi:10.1016/j.tsf.2010.03.093

Cited by 27 publications

(4 citation statements)

References 31 publications

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“…9) The higher the amount of Bi 2 O 3 , the O/P increases Journal of the Ceramic Society of Japan 122 [11] 940-943 2014 JCS-Japan from 3.0 to 3.4 (Table1), so the phosphate chain length becomes shorter. The higher the amount of Bi 2 O 3 (²10 mol %), the weaker the PO 2 symmetric band at 1220 cm ¹1 becomes, shifting towards a lower frequency.…”

Section: Resultsmentioning

confidence: 99%

Effects of Bi2O3 on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Kim

Jung

et al. 2014

J. Ceram. Soc. Japan

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The study of lead-free low-melting sealing glass with properties such as low glass transition temperature (T g ), low softening temperature (T s ), good wettability on the substrate, is in process. One of the low-sintering lead-free glass compositions, the bismuth glass system is considered to be an alternative to lead oxide glass. Research on the development of lead-free low-melting sealing glass in ZnOP 2 O 5 Bi 2 O 3 (ZPB) system was prepared and the effects of substitution of Bi 2 O 3 for ZnO on the structural, thermal, and wetting properties of a sealing glass were studied. The changes in T g , T s and coefficient of thermal expansion (CTE) may reflect decreasing connectivity of the glass structure, due to the increasing BiO bonds. This structure changes have an effect on wettability on the substrate. The addition of higher amounts of Bi 2 O 3 improved the wettability of the glass on the substrate. The ZPB glass, possessing properties of low T g and good wettability, is suitable for low-to-mid temperature sealing applications.

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Section: Resultsmentioning

confidence: 99%

Effects of Bi2O3 on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Kim

Jung

et al. 2014

J. Ceram. Soc. Japan

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“…Therefore, the photocatalytic activity could be improved by increasing the Fe 3+ dopant concentration [33,37]. The improvement in the photoactivity could be caused by the combined effects of the crystalline structure, the optical band gap, grain size, and the surface area of the catalyst [38][39][40][41][42]. The photocatalytic degradation efficiency of Fe-TiO 2 thin films increased and reached a maximum when the Fe 3+ dopant concentration was 0.7%.…”

Section: Photocatalytic Activity Of Toluenementioning

confidence: 99%

Photocatalytic Activity of Toluene under UV-LED Light with TiO₂Thin Films

Rojviroon

Laobuthee

Sirivithayapakorn

2012

International Journal of Photoenergy

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Titanium dioxide (TiO 2) and ferric-doped TiO 2 (Fe-TiO 2) thin films were synthesized on the surface of 304 stainless steel sheets using a simplified sol-gel preparation method. The Fe-TiO 2 thin films were prepared with weight-to-volume ratios of Fe 3+ /TiO 2 of 0.3%, 0.5%, and 0.7%, respectively. The crystalline phase structures of the prepared TiO 2 and Fe-TiO 2 thin films were entirely anatase. The measured optical band gaps of the TiO 2 , 0.3% Fe-TiO 2 , 0.5% Fe-TiO 2 , and 0.7% Fe-TiO 2 thin films were 3.27, 3.28, 3.22, and 2.82 eV, respectively. The grain sizes and other physical properties of the prepared thin films were also reported. The kinetics of the photocatalytic processes under a UV-LED light source could be explained by the Langmuir-Hinshelwood kinetic model with the specific rates of 2.00 × 10 −3 , 4.00 × 10 −3 , 5.00 × 10 −3 , and 7.00 × 10 −3 min −1 mW −1 , for TiO 2 , 0.3% Fe-TiO 2 , 0.5% Fe-TiO 2 , and 0.7% Fe-TiO 2 , respectively. An increase in Fe 3+ dopant concentration could enhance the photocatalytic activity of toluene decomposition as a result of lower optical band gaps, smaller grain size, and higher surface area.

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“…A great number of techniques are used to apply a thin layer on the metals surface such as sol‐gel deposition, chemical conversion layers of cerium, chromium or other elements, chemical vapor deposition (CVD), laser surface treatment, cathodic arc deposition, and physical vapor deposition (PVD) . However, sol‐gel process is considered one of the most promising techniques due to fewer equipments, and hence potentially lower cost.…”

Section: Introductionmentioning

confidence: 99%

“…2 A great number of techniques are used to apply a thin layer on the metals surface such as sol-gel deposition, chemical conversion layers of cerium, chromium or other elements, chemical vapor deposition (CVD), laser surface treatment, cathodic arc deposition, and physical vapor deposition (PVD). [2][3][4][5][6] However, sol-gel process is considered one of the most promising techniques due to fewer equipments, and hence potentially lower cost. Moreover, the most important advantage of sol-gel process over conventional coating methods is the ability to control precisely the microstructure (pore volume, pore size, and surface area) and composition (stoichiometry) of the film.…”

Section: Introductionmentioning

confidence: 99%

Application of Taguchi Method for Characterization of Corrosion Behavior of TiO₂ Coating Prepared by Sol‐Gel Dipping Technique

Naghibi

Jamshidi

Torabi

et al. 2013

Int J Applied Ceramic Tech

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Titanium oxide (TiO2) nanoparticle coatings were deposited on the 316L stainless steel substrates by sol‐gel method. The morphology, structure, and corrosion resistance of the coating were analyzed using SEM, AFM, X‐ray diffraction, and electrochemical techniques. The deposition parameters employed to realize the anticorrosion performance including calcinations temperature, polyethylene glycol (PEG) content, pH value, and number of dipping cycles were investigated. Taguchi statistical experiments were carried out to determine the influence of the deposition variables on anticorrosion properties and optimal conditions. The results indicated that a higher anticorrosion performance of TiO2 films could be achieved using 1 g of PEG in a sol with pH in range of 7–9, six cycles of dipping, and calcination temperature at 400°C. The Tafel polarization measurements indicate that icorr value decreases about 200 times and the Rcorr value increases around 57 times compared with uncoated 316L stainless steel.

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Optical and structural properties of Fe–TiO2 thin films prepared by sol–gel dip coating

Cited by 27 publications

References 31 publications

Effects of Bi<sub>2</sub>O<sub>3</sub> on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Effects of Bi<sub>2</sub>O<sub>3</sub> on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Photocatalytic Activity of Toluene under UV-LED Light with TiO₂Thin Films

Application of Taguchi Method for Characterization of Corrosion Behavior of TiO₂ Coating Prepared by Sol‐Gel Dipping Technique

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Optical and structural properties of Fe–TiO2 thin films prepared by sol–gel dip coating

Cited by 27 publications

References 31 publications

Effects of Bi<sub>2</sub>O<sub>3</sub> on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Effects of Bi<sub>2</sub>O<sub>3</sub> on the structural, thermal and wetting properties of zinc bismuth phosphate glasses for low-melting sealing glass

Photocatalytic Activity of Toluene under UV-LED Light with TiO2Thin Films

Application of Taguchi Method for Characterization of Corrosion Behavior of TiO2 Coating Prepared by Sol‐Gel Dipping Technique

Contact Info

Product

Resources

About

Photocatalytic Activity of Toluene under UV-LED Light with TiO₂Thin Films

Application of Taguchi Method for Characterization of Corrosion Behavior of TiO₂ Coating Prepared by Sol‐Gel Dipping Technique