Structure and optical properties of TiO2 nanorods prepared using polyol solvothermal method

Alosfur, Firas K. Mohamad; Ouda, Aseel Adnan; Ridha, Noor J.; Abud, Saleh H.

doi:10.1063/1.5123095

Cited by 23 publications

(11 citation statements)

References 18 publications

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“…34,35 The characteristic peak at 2347.61 cm −1 is attributed to hydroxyl groups of water molecular corresponding to Ti 4+ cations. 42 In combination with the results of Fig. 5b, this characteristic peak should correspond to the hydroxyl group in (H 2 O) 0.25 ·Ti 4 O 7 (OH) 2 .…”

Section: Resultssupporting

confidence: 62%

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

Guo

et al. 2022

J. Mater. Chem. C

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Section: Resultssupporting

confidence: 62%

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

Guo

et al. 2022

J. Mater. Chem. C

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“…FT-IR spectra are shown in Figure 3 . Peaks at 3434 cm −1 and 1630 cm −1 correspond to O–H bonds, –OH groups, and OH stretches [ 50 ]. This was attributed to Ti–OH corresponding to TiO 2 , which accounted for most of the synthesized samples.…”

Section: Resultsmentioning

confidence: 99%

High-Dispersed V2O5-CuOX Nanoparticles on h-BN in NH3-SCR and NH3-SCO Performance

Lee

Kim

et al. 2022

Nanomaterials

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Typically, to meet emission regulations, the selective catalytic reduction of NOX with NH3 (NH3-SCR) technology cause NH3 emissions owing to high NH3/NOX ratios to meet emission regulations. In this study, V-Cu/BN-Ti was used to remove residual NOX and NH3. Catalysts were evaluated for selective catalytic oxidation of NH3 (NH3-SCO) in the NH3-SCR reaction at 200–300 °C. The addition of vanadium and copper increased the number of Brønsted and Lewis acid sites available for the reaction by increasing the ratio of V5+ and forming Cu+ species, respectively. Furthermore, h-BN was dispersed in the catalyst to improve the content of vanadium and copper species on the surface. NH3 and NOX conversion were 98% and 91% at 260 °C, respectively. Consequently, slipped NH3 (NH3-Slip) emitted only 2% of the injected ammonia. Under SO2 conditions, based on the NH3 oxidation reaction, catalytic deactivation was improved by addition of h-BN. This study suggests that h-BN is a potential catalyst that can help remove residual NOX and meet NH3 emission regulations when placed at the bottom of the SCR catalyst layer in coal-fired power plants.

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“…57,62 The peak at 2355 cm −1 refers to the symmetric OH vibration of the water molecule in coordination with Ti 4+ cations. 63 The presence of the peak at approximately 1067 cm −1 can be attributed to the C-O stretching vibration of ethanol, which is used as a solvent to obtain TiO 2 . 63 The band gap of the samples was estimated by the Wood and Tauc model 64 for indirect semiconductors-(αhν) .5 versus hν, where α is the absorption coefficient and hν is the photon energy (eV).…”

Section: Resultsmentioning

confidence: 99%

“…63 The presence of the peak at approximately 1067 cm −1 can be attributed to the C-O stretching vibration of ethanol, which is used as a solvent to obtain TiO 2 . 63 The band gap of the samples was estimated by the Wood and Tauc model 64 for indirect semiconductors-(αhν) .5 versus hν, where α is the absorption coefficient and hν is the photon energy (eV). According to Figure 5, it is possible to see that undoped TiO 2 has the highest band gap value (3.22 eV).…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic performance of Al and Nb‐doped TiO₂ nanoparticles prepared by microwave‐assisted hydrothermal method

Ücker

Almeida

Vitale

et al. 2022

Int J Applied Ceramic Tech

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Microwave-assisted hydrothermal synthesis of aluminum (Al)-doped TiO 2 (ALT) and niobium (Nb)-doped TiO 2 (NBT) nanoparticles were carried out. Investigations were performed to examine the crystallinity, vibrational modes, surface morphology, and composition using X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS), respectively. The XRD study indicated the higher crystallinity of the ALT particles compared to the Al and Nb-doped TiO 2 (ALNBT) particles, and only the presence of the anatase phase was observed in all samples. As a result of doping, the Raman mode at ∼147 cm −1 is found to be shifted toward a higher wavenumber for both samples. SEM analysis showed the spherical morphology of ALT and NBT nanoparticles. The elemental composition peaks of Al, titanium, Nb, and oxygen were noticed by EDS measurements. Furthermore, both prepared nanoparticles were used as photocatalytic materials. The Nb and Al-doped samples showed an improvement in the photocatalysis response in relation to the pure TiO 2 sample, in which Al-doped sample was able to decolorize 100% of rhodamine B in 75 min of analysis.

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Structure and optical properties of TiO2 nanorods prepared using polyol solvothermal method

Cited by 23 publications

References 18 publications

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

High-Dispersed V2O5-CuOX Nanoparticles on h-BN in NH3-SCR and NH3-SCO Performance

Photocatalytic performance of Al and Nb‐doped TiO₂ nanoparticles prepared by microwave‐assisted hydrothermal method

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Structure and optical properties of TiO2 nanorods prepared using polyol solvothermal method

Cited by 23 publications

References 18 publications

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs2TiBr6

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs2TiBr6

High-Dispersed V2O5-CuOX Nanoparticles on h-BN in NH3-SCR and NH3-SCO Performance

Photocatalytic performance of Al and Nb‐doped TiO2 nanoparticles prepared by microwave‐assisted hydrothermal method

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Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

Stability investigation of the titanium-based eco-friendly perovskite-like antifluorite Cs₂TiBr₆

Photocatalytic performance of Al and Nb‐doped TiO₂ nanoparticles prepared by microwave‐assisted hydrothermal method