Covalent attachment and growth of nanocrystalline films of photocatalytic TiOF₂

Abstract

This manuscript describes a synthesis of nanocrystalline TiOF2 film. The nanocrystalline TiOF2 becomes chemically attached to the surface of the glass slide. These films are robust and can be recycled as photocatalysts for the degradation of organic dyes and solvents. These films also have significant antibacterial properties upon irradiation.

Role of precursor chemistry in the direct fluorination to form titanium based conversion anodes for lithium ion batteries

“…The rst peak is located $531 eV and is attributed to a Ti-O species. 58,59,61,62 The next peak is seen at $533 eV and is attributed to adsorbed water. 58,59 The third smaller peak is located at 528.5 eV, which is attributed to oxygen bound to a reduced Ti 3+ species shown to be present Ti2p spectrum of N-TiOF 2 .…”

“…The rst peak is located $531 eV and is attributed to a Ti-O species. 58,59,61,62 The next peak is seen at $533 eV and is attributed to adsorbed water. 58,59 The F1s data also shows the presence of only one F containing species shown in Fig.…”

“…The main species has a binding energy of 685.2 eV and is due to the Ti-F bond in TiOF 2 . 58,61,[63][64][65][66][67] Two other possibilities exist for the presence of an F1s peak near this binding energy, which are adsorbed uorine (683.9 to 684.3 eV) or uorine bound in the TiO 2 lattice (687.2 to 688.6 eV); based upon the XRD data, the main contribution is likely to be from Ti-F in TiOF 2 . [63][64][65][66][67][68] We also see a small peak centered at 682.9, which again we believe to be evidence of some binding to a reduced Ti 3+ species.…”

“…This peak shows a binding energy of 685.6 eV and is due to the Ti-F bond in TiOF 2 . 58,61,[63][64][65][66][67] The O-TiOF 2 showed no peaks at lower binding energies as seen in the N-TiOF 2 material. Therefore, there is no reduced titanium species present in the uorinated TiO 2 sample, which is expected since there was no reduced titanium species in the precursor.…”

Significant Enhancement of Hydrogen Production in MoS2/Cu2ZnSnS4 Nanoparticles

“…From the TEM measurement results, it can be seen that the nanostructured MoS 2 binds to the surface of Cu 2 ZnSnS 4 NPs tightly. The formed intimate contact between nanostructured MoS 2 and Cu 2 ZnSnS 4 NPs is partly attributed by Van der Walls interactions . To have a qualitative understanding of the binding energy between the MoS 2 and Cu 2 ZnSnS 4 NPs, we dissolved the MoS 2 /Cu 2 ZnSnS 4 NPs in ethanol solution in a 50 mL flask, stirred it vigorously for 8 h, and treated it with 30 min ultrasonic vibration.…”