A route for the synthesis of Cu-doped TiO2 nanoparticles with a very low band gap

Aguilar, Teresa; Navas, Javier; Alcántara, Rodrigo; Fernández‐Lorenzo, Concha; Gallardo, Juan Jesús; Blanco, Ginesa; Martín‐Calleja, Joaquin

doi:10.1016/j.cplett.2013.04.007

Cited by 132 publications

(82 citation statements)

References 45 publications

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“…Mixture of both the phases of titania is advantageous for photocatalytic activity due to synergistic effect of different phases. The results obtained for the present studies are in correlation with this explanation already in the literature given (Aguilar et al 2013). The redshift of 0.2 mol% Ni-TiO 2 samples can be attributed to the charge transfer transitions between impurity band and the TiO 2 conduction band (Paul and Choudhary 2014).…”

Section: Drs Analysissupporting

confidence: 81%

“…Pure anatase has band gap of 3.2 eV, whereas for rutile phase, it is 3.0 eV. However, a mixture of these phases yields lower band gap corresponding to the visible region (Aguilar et al 2013). In general, anatase is considered to be a better photocatalyst than the rutile, but the mixture of both yields the best photocatalytic activities.…”

Section: Drs Analysismentioning

confidence: 99%

“…The photocatalytic activity of the samples is determined by analyzing the extent of degradation of diethyl phthalate in each experiment for a fixed time and catalyst load. The initial concentration (C 0 ) of diethyl phthalate and dimethyl phthalate is taken to be 30 ppm, and the degradation percentage is calculated using the following equation (Aguilar et al 2013):…”

Section: Effect Of Doping On Photocatalytic Activity Of Tiomentioning

confidence: 99%

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Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Singla

Pandey

Singh

2015

Int. J. Environ. Sci. Technol.

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Undoped and Ni-doped TiO 2 nanoparticles are synthesized using sol-gel technique. The physical, structural, optical and thermal properties of the samples are investigated using X-ray powder diffraction, Fourier transform infrared spectroscopy, transmittance electron microscopy, UV-visible diffuse reflectance and thermogravimetric analysis. The photocatalytic activity of the samples is investigated by the photocatalytic degradation of phthalate esters. Phthalate esters have been considered as endocrine disrupting compounds. Nidoped TiO 2 samples show better photocatalytic activity as compared to undoped TiO 2 sample. The greater photocatalytic activity of doped samples as compared to undoped TiO 2 can be attributed to the production of more number of electron-hole pairs in doped samples.

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Section: Drs Analysissupporting

confidence: 81%

Section: Drs Analysismentioning

confidence: 99%

Section: Effect Of Doping On Photocatalytic Activity Of Tiomentioning

confidence: 99%

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Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Singla

Pandey

Singh

2015

Int. J. Environ. Sci. Technol.

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“…Observed Cu2p 3/2,1/2 peaks at 933.6 and 953.3 eV with characteristic satellite peaks assigned for Cu 2? species [43]. Presence of Cu 2?…”

Section: Xps Studiesmentioning

confidence: 99%

“…Table 1 summarizes details of literature available on Cu/TiO 2 coatings produced by different methods [12,[26][27][28][29][30][31][32][33][34][36][37][38][39][40][41][42][43][44] that shows wide range of copper concentrations and its effect on TiO 2 phase. However, there is a scarcity of investigations of dopant effect on optical properties of TiO 2 films prepared by reactive magnetron sputtering technique.…”

Section: Introductionmentioning

confidence: 99%

Cu/TiO2 thin films prepared by reactive RF magnetron sputtering

et al. 2015

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Cu/TiO 2 thin films were deposited on glass substrates by reactive RF magnetron sputtering technique. Crystalline structure, surface morphology and electronic structure were studied using X-ray diffraction (XRD), field emission scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy (XPS). Transmittance and absorptance of these films were characterized by UV-Vis spectroscopy. XRD patterns demonstrate that TiO 2 films deposited on glass substrate at 300°C are observed to be in pure anatase phase, whereas Cu/TiO 2 films are amorphous in nature at 300°C substrate temperature. The crystallinity of Cu/TiO 2 thin films decreases with increasing the dopant concentrations of Cu in TiO 2 films. XPS studies show that Cu is in ?2 oxidation state in all films. The optical band gap of Cu/TiO 2 films decreases from *3.3 to *2.0 eV with the increase in the copper concentration. Further, antimicrobial studies of Cu/TiO 2 films with *3.9 at.% Cu exhibit high transmittance and best antimicrobial activity against E. coli and S. aureus compared to other doped films.

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Insights into the Photovoltaic and Photocatalytic Activity of Cu‐, Al‐, and Tm‐Doped TiO₂

Sánchez‐Coronilla

Navas

Martín

et al. 2018

Emerging Photovoltaic Materials

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A route for the synthesis of Cu-doped TiO2 nanoparticles with a very low band gap

Cited by 132 publications

References 45 publications

Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Cu/TiO2 thin films prepared by reactive RF magnetron sputtering

Insights into the Photovoltaic and Photocatalytic Activity of Cu‐, Al‐, and Tm‐Doped TiO₂

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A route for the synthesis of Cu-doped TiO2 nanoparticles with a very low band gap

Cited by 132 publications

References 45 publications

Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Study of photocatalytic degradation of environmentally harmful phthalate esters using Ni-doped TiO2 nanoparticles

Cu/TiO2 thin films prepared by reactive RF magnetron sputtering

Insights into the Photovoltaic and Photocatalytic Activity of Cu‐, Al‐, and Tm‐Doped TiO2

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Product

Resources

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Insights into the Photovoltaic and Photocatalytic Activity of Cu‐, Al‐, and Tm‐Doped TiO₂