TiO2 nanoparticles assembled on graphene oxide nanosheets with high photocatalytic activity for removal of pollutants

Jiang, Guodong; Zhao, Lin; Chen, Chao; Zhu, Lihua; Chang, Qing; Wang, Nan; Wei, Wei; Tang, Heqing

doi:10.1016/j.carbon.2011.02.059

Cited by 550 publications

(264 citation statements)

References 54 publications

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“…6b clearly represents in the SAED image of 10 % GO-nano titania (1 0 1) diffraction pattern of the nano titania particles. The results were very close to the reported works [13,18].…”

Section: Resultssupporting

confidence: 92%

“…This can be attributed to the presence of both Ti-O-Ti and Ti-O-C bonds in the composites indicating a strong chemical interaction between surface hydroxyl groups of nano titania and oxygen moieties in graphene oxide particles [5]. These results were almost in close agreement with the earlier works [13].…”

Section: Resultssupporting

confidence: 90%

“…This may be attributed to the already existing high surface to pore volume created by nano titania particles prepared by 1:50 mL of TiCl4/H2O and some restoration of π-conjugated system in graphene oxide particles. The shifting of absorption to visible region is also due to high visible absorption properties of GO relative to nano titania [13]. Enhanced visible light absorption indicates a strong chemical interaction between titanium ions and oxygen moieties in graphene oxide particles.…”

Section: Resultsmentioning

confidence: 99%

“…In earlier works, photocatalytic activity of Degussa P25/GO composites was performed [5,13,14]. Hydrothermally prepared TiO2/GO sheets and their photocatalytic activity for hydrogen evolution from water was also reported [6].…”

Section: Introductionmentioning

confidence: 99%

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Facile Synthesis of Graphene Oxide-Nano Titania Composites and Evaluation for Visible Light Assisted Photocatalytic Degradation of Rhodamine B

Ryali¹,

Sanasi²

2018

Asian J. Chem.

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Nano titania composite materials exfoliated with varying weight percentage of graphene oxide were synthesized and evaluated for visible light assisted photocatalytic degradation of rhodamine-B. Titanium tetrachloride was hydrolyzed in water medium under organic solvent free conditions followed by ultrasonic addition of the as prepared 1 % aqueous solution of graphene oxide. The morphology and structural properties of the composite materials (1, 2, 5, 10, 15 wt % graphene oxide-nano titania) prepared has been characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible diffuse reflectance spectra (UV-Vis DRS), high resolution transmission electron microscope (HRTEM), field emission-scanning electron microscopy (FESEM) and UV-visible spectroscopy. A superior activity was observed with 10 mg of 10 % graphene oxide-nano titania composite material. The 100 % degradation of rhodamine-B was observed in 60 min and other optimum conditions were established.

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“…6b clearly represents in the SAED image of 10 % GO-nano titania (1 0 1) diffraction pattern of the nano titania particles. The results were very close to the reported works [13,18].…”

Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Facile Synthesis of Graphene Oxide-Nano Titania Composites and Evaluation for Visible Light Assisted Photocatalytic Degradation of Rhodamine B

Ryali¹,

Sanasi²

2018

Asian J. Chem.

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“…Graphene sheet acts as an electron transfer channel, which suppress the recombination of electron and hole. [82][83] Graphene and graphene based materials serve as good photocatalytic materials owing to their high electron conductivity, mobility, adsorption capacity and specific surface area. 84 Stanene is a quantum spin hall insulator, which conducts electricity through its edges and can be 100% electrical efficient.…”

Section: Photocatalytic Propertiesmentioning

confidence: 99%

Band gap opening in stanene induced by patterned B–N doping

Garg

Choudhuri

Mahata

et al. 2017

Phys. Chem. Chem. Phys.

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Abstract:Stanene is a quantum spin hall insulator and a promising material for electronic and optoelectronic devices. Density functional theory (DFT) calculations are performed to study the band gap opening in stanene by elemental mono-(B, N) and co-doping (B-N). Different patterned B-N co-doping is studied to change the electronic properties in stanene. A patterned B-N co-doping opens the band gap in stanene and the semiconducting nature persists with strain. Molecular dynamics (MD) simulations are performed to confirm the thermal stability of such doped system. The stress-strain study indicates that such doped system is as stable as pure stanene. Our work function calculations show that stanene and doped stanene has lower work function than graphene and thus promising material for photocatalysis and electronic devices.

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