
XPS and FTIR Surface Characterization of TiO
2001年4月3日 · The surfaces of hydrophilic (P25) and hydrophobic (T805) TiO 2 particles were characterized by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) to gain a better understanding of the adsorption mechanism of OLOA 370 (polybutene-succinimide pentamine) on TiO 2 particles dispersed in styrene monomer prior ...
Electronic properties of photocatalytic improved Degussa P25 titanium ...
2018年6月1日 · The defect structures of photocatalytic improved Degussa P25 powder were evaluated by X-ray photoelectron spectroscopy (XPS), paramagnetic resonance spectroscopy (EPR) and in situ studies of the electrical resistivity in order to understand the charge carrier transport inside the material.
Characterisation of oxygen defects and nitrogen impurities in TiO
2021年1月28日 · Thermal expansion of anatase, N-anatase, P25 and N-P25 Synchrotron X-ray powder diffraction (SXPD) data was collected at the High Resolution Powder Diffraction beamline I11 at Diamond Light...
Degussa P25 TiO2 modified with H2O2 under microwave …
2018年4月1日 · Many studies concerning the photocatalytic properties of P25 have been conducted using X-ray photoelectron spectroscopy (XPS) [21], transmission electron microscopy (TEM) [22], and photoluminescence (PL) [23] studies, and we have used these techniques in …
XPS high resolution spectra of P25 and of P25/NCQD
A new composite of TiO2 (P25) and N-doped carbon quantum dots (P25/NCQD) was prepared by a hydrothermal method and was used for the first time as catalyst of the photo- oxidation of NO under UV...
(a) XPS survey of P25 TiO2 and black P25 TiO2; (b) N1s XPS …
XPS spectra are used to further clarify the detailed variations. The N1s XPS spectrum of black P25 TiO2 in Figure 3 b indicates that laser treatment of P25 TiO2 in air can induce N doping...
XPS spectra Ti2p of P25-TiO2 after heat treatment; P25 (a), P25 …
In this work, we investigate the effect of TiO2 properties on the photocatalytic selective hydrogenation of 3-nitrostyrene (3-NS) to 3-vinylaniline (3-VA). The P25-TiO2 photocatalysts were...
Performance controlled via surface oxygen-vacancy in Ti-based …
2020年11月3日 · The high-resolution XPS spectra profiles of P25 and TS-1 illustrated in Figs. 2 and 3 reveal the changes in the amount of Ti 3+, Ti 4+, and O vacancy on the
P25 titanium dioxide coated magnetic particles: Preparation ...
2016年6月15日 · The produced materials were characterized by XRD, XPS, SEM, TEM, EDX, FTIR, ICP, Magnetic Property Measurement System (MPMS) and BET (N 2). After calcination at 500 °C of the magnetic particles that was loaded only with P25, the P25 was strongly bound through a redox reaction with the magnetic particles. It was found that the P25 surface ...
A P25/ (NH4)xWO3 hybrid photocatalyst with broad spectrum ...
2017年4月3日 · In this study, a series of hybrid nanostructured photocatalysts P25/ (NH 4) x WO 3 nanocomposites with the average crystallite size of P25 and (NH 4) x WO 3 of the sample was calculated to be...