Photocatalytic TiO2 deposition by chemical vapor deposition

Byun, Dongjin; Jin, Yongki; Kim, Bumjoon J.; Lee, Joong Kee; Park, Dalkeun

doi:10.1016/s0304-3894(99)00179-x

Cited by 155 publications

(69 citation statements)

References 15 publications

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“…The benzene dissociation rate reached a maxi mum value when the degree of theq112rpreferential orien tation was increased. 12) Here we have to note that the sur face energy is a one of the possible reasons to solve the relationship between the surface reaction and the crystallo graphic orientation of the anatase crystals. On our study and study by Byun et al, the surface index of the growth front q112r oriented anatase crystal is still unknown.…”

Section: Resultsmentioning

confidence: 99%

Photo-Induced Surface Reaction of Highly Oriented Anatase Polycrystalline Films Synthesized Using a CVD Apparatus Operated in Atmospheric Regime

Tokita¹,

Tanaka²,

Ohshio³

et al. 2003

J. Ceram. Soc. Japan

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åCJú^»wCÍoujì»T^züAE»ô¸½»mõUN\Ê½ cCñÞ Þ Ec³YÞ EåÎvÞ Þ EÖ¡GrÞ ÞHighrate growth of polycrystalline anatase lms was achieved on nonepitaxial substrates using a chemical vapordeposition technique operated under air atmosphere. As the growth rate of each crystalline face was strongly dependent on the deposition conditions, four types of anatase polycrystalline lms were fabricated with several oriented directions such asq112r , q110r , q100randq001r . The photoinduced surface reaction of the anatase lms was evaluated by the reduction ability of methylene blue under ultraviolet irradiation by an ultraviolet uorescent lamp. The reduction rate of methylene blue was found to be aected by the preferen tial growth direction of crystallites.

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Section: Resultsmentioning

confidence: 99%

Photo-Induced Surface Reaction of Highly Oriented Anatase Polycrystalline Films Synthesized Using a CVD Apparatus Operated in Atmospheric Regime

Tokita¹,

Tanaka²,

Ohshio³

et al. 2003

J. Ceram. Soc. Japan

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“…Sol-gel is the most simple and sophisticated methodByun et al [27] among the various methods, in which various material parameters such as the powder morphology,surface area, average crystallite size and phase structure are controlled in determining photocatalytic activity of TiO 2 . TiO 2 has band gap energy 3.2 eV.…”

Section: Iirelated Workmentioning

confidence: 99%

Synthesis of Titanium Dioxide Nanoparticles by Sol-Gel Technique

Devi¹,

Venckatesh²,

Sivaraj³

2014

IJIRSET

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Nanosized Titanium dioxide (TiO 2 ) powder was synthesized via sol-gel method using titanium tetraisopropoxide (TTIP) as the precursor. The as prepared nano powder was used for further characterization. The phase transformation was investigated by an X-ray diffractometer (XRD). The anatase structure of titanium dioxide was obtained after calcination. The microstructure was characterized by a Scanning Electron Microscope (SEM).

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“…TiO 2 coatings were produced by sol-gel [37], sputtering [31], chemical vapor deposition [38,39], atomic layer deposition [40], plasma immersion ion implantation [41], and cathodic arc deposition techniques [42,43]. If the vaporization is primarily from the cathode surface by arc erosion, this system is called a cathodic arc source [34].…”

Section: Discussionmentioning

confidence: 99%

Relative Contributions of Surface Roughness and Crystalline Structure to the Biocompatibility of Titanium Nitride and Titanium Oxide Coatings Deposited by PVD and TPS Coatings

et al. 2013

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This study was conducted to characterize titanium (Ti) metal surfaces modified by polishing, coating with titanium nitride, coating with titanium oxide, sandblasting with alumina (Al 2 O 3 ) particles and coating with titanium oxide, coating with titanium plasma spray (TPS); and to evaluate the effect of surface roughness and crystalline structure on adhesion of human fetal osteoblast cells (CRL-11372) in vitro after 24 hours. Surface topography and roughness were examined by scanning electron microscopy (SEM) and a noncontacting optical profilometer, respectively. The crystalline structures of the coatings were characterized by X-ray diffraction (XRD). CRL-11372 cells were incubated at these surfaces for 24 h and were evaluated for their mean total cell counts and cell viabilities. Cell morphologies were examined qualitatively by SEM images. Glass discs served as control group (CG) for the cell culture experiments. Surfaces at the Group TPS had the highest and values. Highest mean total cell counts were found for the CG. SC (sandblasted and TiO 2 coated) surfaces had shown sparsely oriented CRL-11372 cells while other surfaces and CG showed confluency. Surfaces displayed diverse crystalline structures. Crystalline structures led to different cellular adhesion responses among the groups regardless of the surface roughness values.

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Photocatalytic TiO2 deposition by chemical vapor deposition

Cited by 155 publications

References 15 publications

Photo-Induced Surface Reaction of Highly Oriented Anatase Polycrystalline Films Synthesized Using a CVD Apparatus Operated in Atmospheric Regime

Photo-Induced Surface Reaction of Highly Oriented Anatase Polycrystalline Films Synthesized Using a CVD Apparatus Operated in Atmospheric Regime

Synthesis of Titanium Dioxide Nanoparticles by Sol-Gel Technique

Relative Contributions of Surface Roughness and Crystalline Structure to the Biocompatibility of Titanium Nitride and Titanium Oxide Coatings Deposited by PVD and TPS Coatings

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