Photo-electrochemical hydrogen evolution over FTO/Ni0.98Si0.02O2-Ni electrode induced by visible and UV light irradiation

Yadav, Rajkumar; Singh, Himanshu; Saini, Sandhya; Biswas, Bijoy; Kumar, Avnish; Sinha, Anil K.

doi:10.1007/s10800-019-01340-z

Cited by 1 publication

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“…The spectral binding energies proved that Ni 2+ is present in the NPT5 catalyst in the divalent state. The binding energy corresponding to Ni 2p 3/2 at 853.67 eV is separate from that of metallic Ni (852.7 eV) and Ni 2 O 3 (856.7 eV) [38,39]. The variation of binding energies of Ni 2p and observed shift of Ti 2p binding energy 8 eV revealed that phosphorus in the catalyst NPT5 is in the pentavalent (P 5+ ) state [41].…”

Section: Analysis Of Chemical Composition States and Electronic States By X-ray Photo Electron Spectroscopy (Xps)mentioning

confidence: 94%

Efficient and recyclable visible light-active nickel–phosphorus co-doped TiO2 nanocatalysts for the abatement of methylene blue dye

et al. 2020

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The present investigation aimed to design a best performing improved photocatalytic-active material of extensive implications and suitable to achieve the emerging needs of water pollution abatement. In view of the above, the present research work planned to synthesized nickel and phosphorus double-doped TiO 2 (NPT's) by the sol-gel process, characterized by advanced instrumental techniques and applied for the abatement of methylene blue (MB) under visible light. Characterization results demonstrated that nickel and phosphorus co-doped TiO 2 samples showed anatase phase determined by XRD. Structural aspects such as smooth surface with spherical shape morphology, less band gap, less particle size, and high surface area when compared with bare TiO 2 were determined by SEM, UV-Vis. DRS, TEM and BET, respectively. The elemental composition and oxidation states were identified by XPS analysis. The substitutional doping of Ti 4+ ion by Ni 2+ , P 5+ ion and P 3− ion with oxygen in the TiO 2 lattice was evaluated by FT-IR spectroscopy. Based on the characterization results, the catalyst NPT5 was applied for the abatement of MB at various optimum reaction conditions, with pH 10, catalyst weight 0.1 g/l and starting MB concentration 10 mg/l. At these reaction conditions, the degradation was completed within 75 min in the visible light. The photostability of the NPT5 was verified by recycling up to five cycles. Finally, this research work was concluded with a plausible mechanism, using reactive species generated during the degradation process and these species were simultaneously tested using scavenger reagents.

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Section: Analysis Of Chemical Composition States and Electronic States By X-ray Photo Electron Spectroscopy (Xps)mentioning

confidence: 94%

Efficient and recyclable visible light-active nickel–phosphorus co-doped TiO2 nanocatalysts for the abatement of methylene blue dye

et al. 2020

View full text Add to dashboard Cite

show abstract

Photo-electrochemical hydrogen evolution over FTO/Ni0.98Si0.02O2-Ni electrode induced by visible and UV light irradiation

Cited by 1 publication

References 45 publications

Efficient and recyclable visible light-active nickel–phosphorus co-doped TiO2 nanocatalysts for the abatement of methylene blue dye

Efficient and recyclable visible light-active nickel–phosphorus co-doped TiO2 nanocatalysts for the abatement of methylene blue dye

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