TiO2/Au/BDD composites with a Z-scheme structure was prepared by orderly depositing gold (Au) and titanium dioxide (TiO2) on the surface of a boron-doped diamond (BDD) film using sputtering and electrophoretic deposition methods. It was found that the introduction of Au between TiO2 and the BDD, not only could reduce their contact …

We have discovered an unanticipated size effect of SMSI on Au/TiO 2, and successfully explained it by establishing a thermodynamic equilibrium model where the …

Titanium dioxide (TiO2) is widely used in food products, which will eventually enter wastewater treatment plants and terrestrial or aquatic environments, yet little is known about the fraction of this TiO2 that is nanoscale, or the physical and chemical properties of TiO2 that influence its human and environmental fate or toxicity. Instead of analyzing TiO2 …

Au / TiO 2 Synthesis by Suspension In total, 2 g of the support (titanium oxide) was deposited in a porous bed screened with an average particle diameter of 0.7 mm.

Abstract. TiO 2 -based nanomaterials have attracted prodigious attention as a photocatalysts in numerous fields of applications. In this thematic issue, the mechanism …

The negative replica of biomorphic TiO2 with nano-holes structure has been effectively fabricated directly from nano-nipple arrays structure of cicada wings by using a simple, low-cost and highly ...

TiO2–Au composite nanofibers for photocatalytic hydrogen evolution Xiaojiao Yang, a Xuelian Wu,b Jun Lia and Ying Liu *a TiO 2-based materials for photocatalytic hydrogen (H 2) evolution have attracted much interest as a renewable approach for clean energy applications. TiO 2–Au composite nanofibers (NFs) with an average fiber diameter of …

Nanoscale gold–titania (Au/TiO2) catalysts may provide the right combination of electronic structure, structural dynamics, and stability to facilitate wide ranging chemical transformations, including reactions for utilization of renewable energy sources. The Au/TiO2-based systems have also emerged as promising photocatalysts capable of …

The TiO 2 /Au nanostructure has been acknowledged as one of the most classic visible-light active photocatalysts due to the surface plasmon resonance (SPR) of …

We performed a comprehensive study of catalytic activities of subnanometer Au clusters supported on TiO2(110) surface (Aun/TiO2, n = 1-4, 7, 16-20) by means of density functional theory (DFT) calculations and microkinetics analysis. The creditability of the chosen DFT/microkienetics methodologies wa …

A highly efficient light-driven photocatalytic TiO2–Au Janus micromotor with wireless steering and velocity control is described. Unlike chemically propelled micromotors which commonly require the addition of surfactants or toxic chemical fuels, the fuel-free Janus micromotor (diameter ∼1.0 μm) can be powered in pure water under an extremely …

Gold nanoparticles and Bi 2 WO 6 were assembled on the surface of nano-TiO 2, which was supported by the 3D hollow carbon tube fiber (CTF). Benefitting from the controlled assembly of nano-sized Bi 2 WO 6 and Au on the CTF, the UV-visible absorption over the entire visible range from 400 to 800 nm was greatly improved. The 3D structure improved ...

In this work, the photodegradation of methylene blue was investigated by constructing a novel photocatalysis reactor, which was filled with aqueous foam. Nanoscale TiO2 particles were used as photocatalyst. In order to obtain stable foam phase, cetyl trimethyl ammonium bromide (CTAB) was used as the frother, and its suitable initial …

The Au/TiO 2-N-800 was synthesized by calcining Au/TiO 2 in N 2 at 600 °C for 3 h at a heating rate of 5 °C min −1, followed by calcining at 800 °C in air for 3 h at a heating rate of 2 °C ...

For the best performance of the nano-hybrid, the constituents of alloy nanocluster, the mass ratio of alloy nanocluster to nano-TiO 2, the concentration of PVP and the dosage of sodium borohydride were optimized by experiment.The molar ratio of Au to Ag (m Au:m Ag) has been already optimized as 3:1 in our previous work [22].The …

The photophysics surrounding the electron and hole trapping in TiO2 do not have a scientific consensus. Herein, we studied the steady-state photoluminescence and time-resolved spectroscopy features from TiO2 and TiO2/Au nanoparticles (NPs). In TiO2/Au NPs, time-resolved photoluminescence indicates that the electrons from …

Again, TiO 2 has high chemical stability, high thermal resistance, good corrosion and oxidation resistance [6], [7]. TiO 2 is a good semiconducting material and three naturally occurring crystalline forms of TiO 2 include rutile, anatase and brookite having band gap energy of 3.0, 3.2 and 2.96 eV respectively [8], [9], [10]. Anatase and …

Titanium dioxide (TiO 2) nanomaterials are known for their numerous and diverse applications, which range from common products, such as sunscreens, to advanced devices, such as photovoltaic cells, and include, among others, a series of environmental and biomedical applications, such as photocatalytic degradation of pollutants, water …

Reduced TiO 2 nanomaterials (so-called black TiO 2) attract intensive research interests due to their excellent capability for harvesting solar energy.To obtain a high conversion rate of solar energy to electrical energy, we loaded Au nanoparticles (NPs) and PbS quantum dots (QDs) on as-prepared TiO 2 nanotubes (TNT) and black TiO 2 …

Abstract. Here we demonstrate that the photoactivity of Au-decorated TiO2 electrodes for photoelectrochemical water oxidation can be effectively enhanced in the …

With as many as 21 critical summaries of the most recent experimental and theoretical findings by leading experts in the field, this issue provides an exhaustive …

Titanium dioxide nanoparticles (TiO2-NPs) are widely used in the cosmetics, health, and food industries, but their safety and genotoxicity remain a matter of debate. We investigated whether TiO2 ...

Photophysical Study of Electron and Hole Trapping in TiO2 and TiO2/Au Nanoparticles through a Selective Electron Injection. The Journal of Physical Chemistry C 2022, 126 ... ACS Nano 2022, 16 (10 ... Xiaoyu Chen, Bojing Sun, Jiayu Chu, Zhi Han, Yu Wang, Yunchen Du, Xijiang Han, Ping Xu. Oxygen Vacancy-Induced Construction of …

In the present study, an attempt has been made to design ternary multifunctional nanocomposite photocatalyst based on Au@Pt-TiO 2 core–shell nanoparticles anchored onto nano-graphene oxide (nano-GO) through facile one-pot solvothermal process. Evaluation of UV and visible light photocatalytic activities against …

In TiO 2 /Au NPs, time-resolved photoluminescence indicates that the electrons from bandgap excitation decay slower (∼30 ps) than in TiO 2 (<24 ps). We …

Sandblasting TiO2. Titanium sub-oxide (black TiO 2 ) is an abrasive ceramic. Its very angular structure makes it ideal for sandblasting ceramic and titanium objects. The Black …

Abstract. A highly ordered TiO 2 /Au nanorod array was successfully fabricated by direct current electrodeposition and subsequent spin-coating. Scanning electron microscopy and transmission electron microscopy images revealed that the TiO 2 film completely covered the surface of the Au nanorods, which resulted in TiO 2 shell Au …

It is found that Au@TiO 2 NPs with nanorod morphology and crystalline TiO 2 shells display the best performance, which is 5 times higher than that of bare Au nanoparticles. This …

Although the resultant Au/TiO 2 @M-N-800 does not outperform the state-of-the-art, it is still comparable to the Au/TiO 2-HAP-800 and Au/TiO 2-SiO 2-800 …

The attractive fuel-free propulsion performance, fast movement triggering response, low light energy requirement, and precise motion control of the TiO2-Au Janus …