Photo-catalytic degradation of Rhodamine B on C-, S-, N-, and Fe-doped TiO2 under visible-light irradiation

Yang, Xiao; Cao, Chunshe; Erickson, Larry E.; Hohn, Keith L.; Maghirang, Ronaldo G.; Klabunde, Kenneth J.

doi:10.1016/j.apcatb.2009.07.006

Cited by 263 publications

(100 citation statements)

References 42 publications

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“…The variation of anatase to rutile phase content ratio versus the nitrogen concentration is given in the supplementary material as S1. Crystallite sizes of doped samples were smaller compared to the undoped sample [23][24][25][26]. Parida et al have also reported similar results for nitrogen doped samples, crystallite size decreases with increase in the urea concentration [26].…”

Section: Powder X-ray Diffraction (Pxrd) Studiessupporting

confidence: 66%

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Rajashekhar

Devi

2013

Journal of Molecular Catalysis A: Chemical

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a b s t r a c tA series of nitrogen-doped Degussa P25 photocatalysts were synthesized successfully by grinding and calcination method using 2,6-diaminopyridine (DAP) as a nitrogen precursor. The prepared samples were characterized by various analytical methods. The phase contents of anatase and rutile in the Degussa P25 powders have been altered by simply changing the proportion of DAP. A mechanism involving chelated DAP molecule on TiO 6 2− octahedron is discussed. The enhanced activity is attributed to synergistic effect in the two phase solid material. Due to the low activation barrier, the effective inter particle electron transfer between the two polymorphs is quite efficient only when they are in close proximity with similar crystallite sizes. The transfer of electrons from the rutile phase to lattice/electron trapping sites of anatase and also to the Ti 3+ -V o defect level created by the dopant favors effective charge separation and enhance the photocatalytic activity under solar illumination.

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Section: Powder X-ray Diffraction (Pxrd) Studiessupporting

confidence: 66%

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Rajashekhar

Devi

2013

Journal of Molecular Catalysis A: Chemical

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“…Doping different elements into TiO 2 , including metal [8,9] and non-metal elements increases the photocatalytic efficiency [10,11]. Researchers indicated that N-containing [12] S-containing [13] or N-doping [14,15] S-doping [16] and N, S co-doping of TiO 2 can improve the visible light response [7].…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Loaded N, S Co-Doped TiO<sub>2</sub> Nanomaterial and its Dye Wastewater Treatment

Kamalakkannan

Chandraboss

Prabha

et al. 2015

ILCPA

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Activated carbon (AC) loaded nitrogen and sulfur (N, S) co-doped TiO 2 nanomaterial (AC-N-STiO 2 ) was prepared by precipitation method. AC-N-S-TiO 2 material was characterized by Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier Transform -Infrared (FT-IR), Photoluminescence (PL) and atomic force microscopy (AFM) analysis. Photodegradation and decolorization of Malachite green (MAG) and Methyl green (MEG) by using TiO 2, N-S-TiO 2 and AC-N-S-TiO 2 under UV-light irradiation has been carried out. The photocatalytic activity of the AC-N-S-TiO 2 was higher than that of the undoped and N, S-doped TiO 2 , The hydroxyl radical analysis -Fluorescence technique with coumarin has been discussed. The photodegradation of MEG was well described by analyzed to be pseudo-first order according to the Langmuir-Hinshelwood representation, the high quantum yield set up to be calculated, stability and reustability of nanomaterial. AC-N-S-TiO 2 act as a promising photocatalyst for dye wastewater treatment under UV-light irradiation.

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“…4 Although Fe 3+ modified TiO2 photocatalysts are active under visible light irradiation, the efficiency is still low for practical use. 5 At the same time, the photocatalytic processes, mechanisms and kinetics on the doped TiO2 are complex physical process and often make it difficult to draw the uniform conclusions, which lead to the controversies.…”

Section: Introductionmentioning

confidence: 99%

Relative Photonic Properties of Fe/TiO₂-Nanocarbon Catalysts for Degradation of MB Solution under Visible Light

Oh¹,

Zhang²,

Meng³

et al. 2010

Bulletin of the Korean Chemical Society

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Nanocarbon supported Fe/TiO2 composite catalysts were prepared using CNTs (carbon nanotubes) and C60 (fullerene) as nanocarbon sources by a modified sol-gel method. The Fe/TiO2-nanocarbon composites were characterized by the BET surface area, scanning electron microscope (SEM), Transmission Electron Microscope (TEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) and UV-vis spectra. In comparison with non-nanocarbon doped Fe/TiO2 composites, the nanocarbon supported Fe/TiO2 composites had higher absorption ability with a larger specific surface area, and showed higher photocatalytic activity during the degradation of methylene blue (MB) under visible light. The reasons for the obvious increase of photocatalytic activity indicated that the photoactivity not only benefits from nanocarbon introduced, but also relates to the cooperative effect of the Fe as a dopant.

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Photo-catalytic degradation of Rhodamine B on C-, S-, N-, and Fe-doped TiO2 under visible-light irradiation

Cited by 263 publications

References 42 publications

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Activated Carbon Loaded N, S Co-Doped TiO<sub>2</sub> Nanomaterial and its Dye Wastewater Treatment

Relative Photonic Properties of Fe/TiO₂-Nanocarbon Catalysts for Degradation of MB Solution under Visible Light

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Photo-catalytic degradation of Rhodamine B on C-, S-, N-, and Fe-doped TiO2 under visible-light irradiation

Cited by 263 publications

References 42 publications

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Polymorphic phase transformation of Degussa P25 TiO2 by the chelation of diaminopyridine on TiO62− octahedron: Correlation of anatase to rutile phase ratio on the photocatalytic activity

Activated Carbon Loaded N, S Co-Doped TiO<sub>2</sub> Nanomaterial and its Dye Wastewater Treatment

Relative Photonic Properties of Fe/TiO2-Nanocarbon Catalysts for Degradation of MB Solution under Visible Light

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Relative Photonic Properties of Fe/TiO₂-Nanocarbon Catalysts for Degradation of MB Solution under Visible Light