Synthesis of Ag ion-implanted TiO2 thin films for antibacterial application and photocatalytic performance

Hou, Xinggang; Ma, Huiyan; Liu, Feng; Deng, Jianhua; Ai, Yukai; Zhao, Xinlei; Dong, Mei; Li, Dejun; Liao, Bin

doi:10.1016/j.jhazmat.2015.05.014

Cited by 105 publications

(63 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Photocatalyst is one of smart materials that has received a great attention due to their wide applications for air purification [1,2], water treatment [3], bacterial removal [4,5] and other applications in environmental cleaning [6][7][8]. The fundamental process of photocatalysis is carried out by light irradiation through the semiconductor.…”

Section: Introductionmentioning

confidence: 99%

“…Silver (Ag) metal doping on TiO 2 has been recommended in many researches [12][13][14] for improving the photoactivity of TiO 2 [5]. Ag deposited on TiO 2 has positive effects on the photoactivity in terms of narrowing band gap energy of TiO 2 by the surface plasmon resonance of Ag, resulting in extend range of the visible light absorption [15] and prevention of recombination between electron-hole pair [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Synthesis Method and Amount of Silver on Physicochemical Properties and Photocatalytic Activity of Ag Doped TiO2 Nanoparticles

2018

CABES-2018 April 17-18, 2018 Kyoto (Japan)

View full text Add to dashboard Cite

Ag doped TiO 2 (AgT) nanoparticles have been synthesized by solvothermal method (S) and impregnation method (I) with different amount of silver dopant. In order to study the effect of synthesis method and amount of silver on physical and chemical properties of AgT nanoparticles, X-ray diffraction (QXRD), field emission scanning electron microscopy (FESEM) with energy dispersive X-ray spectroscopy (EDS) and UVvisible absorption spectrophotometer (UV-vis

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Synthesis Method and Amount of Silver on Physicochemical Properties and Photocatalytic Activity of Ag Doped TiO2 Nanoparticles

2018

CABES-2018 April 17-18, 2018 Kyoto (Japan)

View full text Add to dashboard Cite

show abstract

“…based on metal oxides, which exhibit antimicrobial and antifungal activity is very attractive solution to this problem. One of the materials that could be used for this purpose is titanium dioxide due to its well known bioactivity related to catalytic * E-mail: damian.wojcieszak@pwr.edu.pl properties [1][2][3]. TiO 2 exhibits high chemical stability, it is also a non-toxic material, cheap in production [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Some studies [11] confirmed existence of the optimal crystallites size of about 10 nm, when the photocatalytic oxidation of the organic substrates reached maximum efficiency. There are many examples of bactericidal effect of TiO 2 [3,9]. For example MarkowskaSzczupak et at.…”

Section: Introductionmentioning

confidence: 99%

Effect of the structure on biological and photocatalytic activity of transparent titania thin-film coatings

Wojcieszak

Mazur

Kaczmarek

et al. 2016

Materials Science-Poland

View full text Add to dashboard Cite

In this work, the effect of titanium dioxide (TiO 2 ) thin film microstructure on photocatalytic and biological activity was described. The films were prepared by low-pressure and high-energy magnetron sputtering processes. The structural investigations performed by X-ray diffraction revealed that the films from both the processes were nanocrystalline. It was found that TiO 2 prepared by low-pressure process had the anatase structure with crystallites in size of 20 nm, while the film deposited in high-energy process had the rutile form with crystallites in size of 5 nm. The analysis of surface topography with the aid of optical profiler showed that all prepared films were homogenous and their roughness was lower than 1 nm. The wettability studies revealed hydrophilic nature of both films. The values of water contact angle obtained for anatase and rutile films were equal to 40°and 49°, respectively. Both types of the thin films were photocatalitycally active, but rutile exhibited higher decomposition rate as compared to anatase. During the photocatalytic reaction in the presence of TiO 2 -rutile film after 12 hours of UV-Vis irradiation 30 % of phenol was decomposed, whereas in case of TiO 2 -anatase it was only 10 %. Moreover, the influence of as-deposited coatings on the growth of selected microbes (Staphylococcus aureus, Escherichia coli, Candida albicans) was examined. It was found that the structural properties of TiO 2 had an effect on biological activity of these films.

show abstract

“…These semiconductors have the band gap about 3.2 eV and 2.1 eV respectively and possess strong oxidative ability and non-toxicity [1]. Some of the metal ions like Ag + and Fe 3 + , when used as additives, have provoked an additional antibacterial activity of the titanium photocatalyst [2,3]. From the last few decades, many researchers studied the dielectric and conduction behavior of ceramic composites and these shows interesting electrical and dielectric properties [4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Fe<sup>3+</sup> Ion Substitution on Thermal and Dielectric Properties of Titanium Dioxide

Hunagund

Chavan

Desai

et al. 2016

ILCPA

View full text Add to dashboard Cite

ABSTRACT. Thermal and dielectric characteristics of Fe 2 O 3 doped TiO 2 (FDT) nanopowder is investigated. Formation of FDT was prepared using the formula [1-x] TiO 2 + [x] Fe 2 O 3 by solid state reaction method. The Surface morphology was studied using atomic force microscopy (AFM) technique; it reveals the average particle size in the range of 180 to 200 nm. FT-IR analysis reveals weak transmittance bands between 1020 to 1650 cm -1 and 2800 to 3500 cm -1 which show a gradual decrease in peak intensities with an increase of Fe concentration. Thermal stability was assessed by Thermogravimetric analysis (TGA). Results of TGA profiles indicate that all FDT nanopowder was found to be thermally stable between 400˚C to 600˚C. The dielectric behavior of the said composite has been investigated as a function of frequency (20 Hz -1 MHz) at room temperature and it is observed that the dielectric constant decreases with increasing frequency indicating dispersion behavior.

show abstract

Synthesis of Ag ion-implanted TiO2 thin films for antibacterial application and photocatalytic performance

Cited by 105 publications

References 51 publications

Effect of Synthesis Method and Amount of Silver on Physicochemical Properties and Photocatalytic Activity of Ag Doped TiO2 Nanoparticles

Effect of Synthesis Method and Amount of Silver on Physicochemical Properties and Photocatalytic Activity of Ag Doped TiO2 Nanoparticles

Effect of the structure on biological and photocatalytic activity of transparent titania thin-film coatings

Influence of Fe<sup>3+</sup> Ion Substitution on Thermal and Dielectric Properties of Titanium Dioxide

Contact Info

Product

Resources

About