Copper oxide nanoparticles confined in TiO2 nanotubes for the water–gas shift reaction: promotional effect of potassium

Chen, Yaqian; Li, Juan; Li, Xiangnan; Luo, Fengying; Wang, Zeyu; Wu, Liangpeng; Li, Xinjun

doi:10.1557/s43578-021-00416-x

Cited by 2 publications

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References 31 publications

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“…The Raman band at 154 cm –1 is very intense and sharp. Four characteristic Raman active modes of anatase TiO 2 with symmetries E g , B 1g , A 1g , and E g were observed at 154, 382, 481, and 628 cm –1 . − These characteristic vibration frequencies confirmed the phase pure anatase TiO 2 in the TF-450 nanocomposite. An additional broad and intense Raman scattering effect was observed at 1416 cm –1 due to the 2LO Raman scattered intensities .…”

Section: Resultsmentioning

confidence: 72%

Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

et al. 2022

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High-purity (98.8%, TiO 2 ) rutile nanoparticles were successfully synthesized using ilmenite sand as the initial titanium source. This novel synthesis method was cost-effective and straightforward due to the absence of the traditional gravity, magnetic, electrostatic separation, ball milling, and smelting processes. Synthesized TiO 2 nanoparticles were 99% pure. Also, highly corrosive environmentally hazardous acid leachate generated during the leaching process of ilmenite sand was effectively converted into a highly efficient visible light active photocatalyst. The prepared photocatalyst system consists of anatase-TiO 2 /rutile-TiO 2 /Fe 2 O 3 (TF-800), rutile-TiO 2 /Fe 2 TiO 5 (TFTO-800), and anatase-TiO 2 /Fe 3 O 4 (TF-450) nanocomposites, respectively. The pseudo-second-order adsorption rate of the TF-800 ternary nanocomposite was 0.126 g mg –1 min –1 in dark conditions, and a 0.044 min –1 visible light initial photodegradation rate was exhibited. The TFTO-800 binary nanocomposite adsorbed methylene blue (MB) following pseudo-second-order adsorption (0.224 g mg –1 min –1 ) in the dark, and the rate constant for photodegradation of MB in visible light was 0.006 min –1 . The prepared TF-450 nanocomposite did not display excellent adsorptive and photocatalytic performances throughout the experiment period. The synthesized TF-800 and TFTO-800 were able to degrade 93.1 and 49.8% of a 100 mL, 10 ppm MB dye solution within 180 min, respectively.

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Section: Resultsmentioning

confidence: 72%

Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

et al. 2022

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Solvothermal synthesis of Cu2O nano-microspheres with high visible-light adsorption properties

Yuan

Luo

et al. 2022

Journal of Materials Research

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Copper oxide nanoparticles confined in TiO2 nanotubes for the water–gas shift reaction: promotional effect of potassium

Cited by 2 publications

References 31 publications

Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

Solvothermal synthesis of Cu2O nano-microspheres with high visible-light adsorption properties

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Copper oxide nanoparticles confined in TiO2 nanotubes for the water–gas shift reaction: promotional effect of potassium

Cited by 2 publications

References 31 publications

Fabrication of TiO2 Spheres and a Visible Light Active α-Fe2O3/TiO2-Rutile/TiO2-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

Fabrication of TiO2 Spheres and a Visible Light Active α-Fe2O3/TiO2-Rutile/TiO2-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

Solvothermal synthesis of Cu2O nano-microspheres with high visible-light adsorption properties

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Product

Resources

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Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite

Fabrication of TiO₂ Spheres and a Visible Light Active α-Fe₂O₃/TiO₂-Rutile/TiO₂-Anatase Heterogeneous Photocatalyst from Natural Ilmenite