Surface modified Nd doped TiO2 nanoparticles as photocatalysts in UV and solar light irradiation

Bokare, Anuja; Pai, Mrinal R.; Athawale, Anjali A.

doi:10.1016/j.solener.2013.02.005

Cited by 89 publications

(41 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with TO, NdTO and NTO present decreased intensities of the rutile (110) peaks, whereas increased intensities of the anatase (101) peaks, implying that Nd or N doping can inhibit the phase transformation from anatase to rutile. Similar results were also reported in other works [11][12][13][14]. Ti-O-Nd, N-Ti-O, and Ti-O-N bonds at the interstices of TiO 2 lattices could occur during the microwave-assisted hydrothermal process, then inhibiting the phase transition.…”

Section: Crystal Structure Morphology and Surface Texturing Propertiessupporting

confidence: 91%

“…The substitutional N in TiO 2 lattice induces N 2p occupied state localized slightly above the valence band edge, resulting in the red shift of the absorption edge, whereas the visible light response of the interstitial N-doped TiO 2 arise from occupied π n character N-O localized state slightly above the valence band edge [35]. The redshift in NdTO should be attributed to the charge transfer from O 2p to Nd 4f located below the lowest edge of the conduction band of TiO 2 , instead of Ti 3d [12,14]. In contrast, PTO presents an obvious blue-shift than TO mainly due to its single anatase structure.…”

Section: Optical Propertymentioning

confidence: 96%

“…For example, Hewer et al [11] synthesized TiO 2 doped with only 0.5 wt% Nd by sol-gel and precipitation methods, which presented the enhanced photocatalytic activity towards Remazol Black degradation compared to undoped TiO 2 . Bokare et al [12] prepared Nd-doped TiO 2 by the sol-gel method exhibiting photocatalytic activity in solar light together with UV light irradiation, which was ascribed to the increase in the anatase phase stability, surface area and visible-light absorption capacity of the sample due to Nd-doping. Du et al [13] prepared porous Nd-doped TiO 2 using polystyrene spheres as a template, which exhibited an enhanced photocatalytic activity for the degradation of methyl orange under UV-vis irradiation in comparison with the pristine porous TiO 2 and Degussa P25.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microwave-assisted hydrothermal synthesis of Nd, N, and P tri-doped TiO2 from TiCl4 hydrolysis and synergetic mechanism for enhanced photoactivity under simulated sunlight irradiation

Jiang

Liu

Zang

et al. 2015

Materials Science in Semiconductor Processing

View full text Add to dashboard Cite

Section: Crystal Structure Morphology and Surface Texturing Propertiessupporting

confidence: 91%

Section: Optical Propertymentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microwave-assisted hydrothermal synthesis of Nd, N, and P tri-doped TiO2 from TiCl4 hydrolysis and synergetic mechanism for enhanced photoactivity under simulated sunlight irradiation

Jiang

Liu

Zang

et al. 2015

Materials Science in Semiconductor Processing

View full text Add to dashboard Cite

“…In 1972, Fujishima and Honda have reported the photocatalytic activities of TiO 2 [4], since then extensive work has been carried out to understand the catalytic activities of TiO 2 [5][6][7][8]. Discovery of dye-sensitized solar cells has further stemmed the R&D activities on TiO 2 [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of visible light-responsive cobalt-doped TiO2 nanoparticles with tunable optical band gap

Khurana

Pandey

Chudasama

2015

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

Visible light-responsive photocatalysts are the most promising candidates for green bioremediation processes that will degrade toxic organic industrial waste into harmless compounds. Among the photocatalysts, TiO 2 is best suited for large-scale photo-induced bioremediation processes mainly because of low cost and abundance. The major obstacle in its utilization as photocatalyst is its poor response to sunlight due to its wide energy band gap. This article reports sol-gel synthesis of pristine and cobaltdoped TiO 2 nanoparticles (TNPs). Titanium (IV) isopropoxide is hydrolyzed and condensed into amorphous titanium dioxide gel by water/ethanol under acidic conditions. Irrespective of the Co concentration, TNPs always crystallize into anatase phase when calcine at 500°C. No signature of other isomorphous phases, i.e., rutile or brookite, is detected. The optical band gap of pristine (0 % Co doped) TNPs is 3.03 eV (k = 409 nm), which decreases up to 1.93 eV (k = 642 nm) when Co concentration in TiO 2 matrix increases from 0 to 2 %. Co(?2) substitution at Ti(?4) site generates additional oxygen vacancies in the TiO 2 unit cell, which introduces extra energy levels in the forbidden band that reduces the indirect energy band gap of TNPs. Co doping in TNPs makes them sensitive to visible radiation, and hence, their photoresponse is expected to be better under sunlight than pristine bulk titania, which is active only in the UV region of the electromagnetic spectrum. Graphical Abstract

show abstract

“…Significant research has been done on the synthesis and photocatalytic performance of ruthenium doped TiO2. [13][14][15][16][17][18] For example, a report by senthilnathan et al, corroborated significant rise in visible light responsive photocatalytic performance is noted on doping Ru with the rise in dye removal efficiency from 40 (TiO2) to 80 % (Ru-TiO2). 18 However, interestingly no systematic investigation has been made on the shape-controlled synthesis of ruthenium doped TiO2 and its photocatalytic performance.…”

Section: Introductionmentioning

confidence: 92%

"HYDROTHERMAL SYNTHESIS OF ULTRA VIOLET-VISIBLE LIGHT RESPONSIVE RUTHENIUM DOPED TITANIA (RuXTi1-XO2) NANOSHEET AND ITS EFFECT ON PHOTOCATALYTIC DEGRADATION OF REACTIVE RED DYES "

Ashok¹,

Raman²,

Masilamani³

et al. 2018

RJC

View full text Add to dashboard Cite

In the present work, ruthenium doped titania (RuXTi1-XO2) nanosheet was synthesized by hydrothermal method using titanium tetraisopropoxide and ruthenium trichloride trihydrate as metal precursors. The structural, chemical and morphological properties were determined using X-Ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Transmission electron microscopy (TEM). The synthesizedRuXTi1-XO2 nanocrystals were used as photocatalyst for the degradation of Reactive Red 198 (RR) dye in aqueous solutions at the room temperature. The photocatalytic activity of the RuXTi1-XO2 nanosheet was evaluated and compared with its control counterpart TiO2. Significant improvement in dye degradation is noted for RuXTi1-XO2, when compared to TiO2. Which is corroborated to the increased visible light absorption due to the presence of ruthenium in the crystallite sites of TiO2 that resulted in well separated photo-generated electron and hole pairs under the light illumination.

show abstract

Surface modified Nd doped TiO2 nanoparticles as photocatalysts in UV and solar light irradiation

Cited by 89 publications

References 30 publications

Microwave-assisted hydrothermal synthesis of Nd, N, and P tri-doped TiO2 from TiCl4 hydrolysis and synergetic mechanism for enhanced photoactivity under simulated sunlight irradiation

Microwave-assisted hydrothermal synthesis of Nd, N, and P tri-doped TiO2 from TiCl4 hydrolysis and synergetic mechanism for enhanced photoactivity under simulated sunlight irradiation

Synthesis of visible light-responsive cobalt-doped TiO2 nanoparticles with tunable optical band gap

"HYDROTHERMAL SYNTHESIS OF ULTRA VIOLET-VISIBLE LIGHT RESPONSIVE RUTHENIUM DOPED TITANIA (RuXTi1-XO2) NANOSHEET AND ITS EFFECT ON PHOTOCATALYTIC DEGRADATION OF REACTIVE RED DYES "

Contact Info

Product

Resources

About