Construction of 2D/0D Graphene Oxide/Copper(I) Oxide-Incorporated Titanium Dioxide Mixed-Dimensional Membranes with Ultrafast Water Transport and Enhanced Antifouling Properties.

Graphene oxide (GO) membranes are emerging for water treatment. Meanwhile, challenges remain due to membrane fouling and their instability in aqueous solutions. Herein, a novel GO-based mixed-dimensional membrane with superior antifouling and nonswelling properties was prepared by assembling two-dimensional (2D) GO nanosheets and zero-dimensional (0D) copper(I) oxide-incorporated titanium dioxide photocatalyst (CT).

The synthesis and highly effective antibacterial properties of Cu-3, 5-dimethy l-1, 2, 4-triazole metal organic frameworks.

The influence of metal ions, the state of metal salt, and ligands on the sterilization ability of (Metalorganic frameworks) MOFs to effectively achieve sterilization has been investigated in this study. Initially, the MOFs were synthesized by elements of Zn, Ag, and Cd for the same periodic and main group of Cu. This illustrated that the atomic structure of Cu was more beneficial for coordinating with ligands.

Antibacterial effect of CuO/TiO photocatalytic composite on Pseudomonas marginalis pv. marginalis.

CuO/TiO visible-light photocatalytic composite was successfully synthesized by supercritical solvothermal route. CuO/TiO presented excellent bacterial inactivation activity for Pseudomonas marginalis pv. marginalis, which was related to the concentration of bacteria and the antibacterial time.

Integrated photocatalysis-adsorption-membrane separation in rotating reactor for synergistic removal of RhB.

A synergistic system of integrated photocatalysis-adsorption-membrane separation in a rotating reactor was designed. The composite membrane was prepared via filtration process under vacuum, and it was composed of graphene oxide (GO) acted as the separation membrane, activated carbon (AC) as the adsorbent and Ag@BiOBr as the photocatalyst, respectively. In this Ag@BiOBr/AC/GO membrane system, rotation of the membrane could avoid the light-shielding effect from organic color pollutants to achieve the complete removal of pollutants.

Hybrid CuO/TiO Nanocomposites with Enhanced Photocatalytic Antibacterial Activity toward .

The hybrid CuO-TiO photocatalytic composite with a p-n heterojunction was synthesized by the supercritical solvothermal route. The uniformly distributed CuO was stably combined with TiO to benefit the increase of the specific surface area, the harvesting of visible light, and the separation of photogenerated holes and electrons. As a result, photocatalytic inactivation of under visible-light irradiation was facilitated.

Synergistic Photocatalytic-Photothermal Contribution to Antibacterial Activity in BiOI-Graphene Oxide Nanocomposites.

The threat of environmental microbial contamination to the health of human beings has drawn particular attention. In order to explore the synergistic effect of photocatalytic and photothermal process to the antibacterial property, a stably combined BiOI-graphene oxide (GO) nanocomposite was constructed and prepared through a facile solvothermal method. BiOI crystals were uniformly distributed on the GO nanosheets by the formation of the Bi-C bond.

Ag/BiOBr Film in a Rotating-Disk Reactor Containing Long-Afterglow Phosphor for Round-the-Clock Photocatalysis.

Ag/BiOBr film coated on the glass substrate was synthesized by a solvothermal method and a subsequent photoreduction process. Such a Ag/BiOBr film was then adhered to a hollow rotating disk filled with long-afterglow phosphor inside the chamber. The Ag/BiOBr film exhibited high photocatalytic activity for organic pollutant degradation owing to the improved visible-light harvesting and the separation of photoinduced charges.

Aerosol-spraying preparation of a mesoporous hollow spherical BiFeO3 visible photocatalyst with enhanced activity and durability.

A facile aerosol-spraying approach was developed to prepare mesoporous BiFeO(3) hollow spheres with enhanced activity and durability in visible photocatalysis.

Solvothermal synthesis of well-defined TiO(2) mesoporous nanotubes with enhanced photocatalytic activity.

High efficiency TiO(2) photocatalyst in porous nanotubes were prepared by solvothermal alcoholysis of TiOSO(4) in the presence of carbon nanotube template.

Aerosol-spraying synthesis of SiO2/TiO2 nanocomposites and conversion to porous TiO2 and single-crystalline TiOF2.

Single-crystalline TiOF2 was prepared by HF-etching the SiO2/TiO2 nanocomposite obtained via aerosol-spraying, which exhibited high activity and durability in visible-light driven photocatalysis.

Water-medium clean organic reactions over an active mesoporous Ru(II) organometallic catalyst.

Water-medium clean organic reactions including isomerization and hydrogenation were carried out over a Ru(II) mesoporous organometallic catalyst (Ru-MOC) synthesized based on surfactant-directed coassembly of a bridged Ru(II) organometallicsilane and tetraethoxysilane. Owing to the large surface area, the ordered mesoporous channels, and the highly dispersed Ru(II) active sites, the activity and selectivity of the Ru-MOC catalyst are much higherthan that of the immobilized Ru(II) catalyst obtained through regular grafting technology. The Ru-MOC catalyst exhibited similar activity and selectivity to the corresponding homogeneous Ru(II) organometallic catalysts.

Supercritical preparation of a highly active S-doped TiO2 photocatalyst for methylene blue mineralization.

Sulfur-modification of the TiO2 was achieved by treating the TiO2 precursor (xerogel) under supercritical conditions in CS2/ethanol fluid. Nuclear magnetic resonance, X-ray photoelectron spectroscopy and Fourier transform infrared spectra demonstrated that the TiO2 was modified by the S-species incorporated into the TiO2 network by forming S-Ti-O bonds rather than by the adsorbed CS2. During liquid-phase photocatalytic degradation of methylene blue (MB) under visible light irradiation (> 420 nm), the as-prepared S-doped TiO2 exhibited much higher activity than the undoped TiO2 obtained via either supercritical treatment or direct calcinations and even the N-doped TiO2 obtained via supercritical treatment.

Highly active TiO2N photocatalysts prepared by treating TiO2 precursors in NH3/ethanol fluid under supercritical conditions.

N-doped TiO2 photocatalysts were prepared by pretreating the TiO2 precursor in NH3/ethanol fluid under supercritical conditions, denoted as TiO2N(SC). In contrast to the TiO2N(DC), obtained via direct calcination in which the N dopants were mainly present in the form of surface adsorbed NH3 molecules, most N dopants in the TiO2N(SC) were present in O-Ti-N and N-Ti-N nitrides, as confirmed by either the X-ray photoelectron spectroscopy (XPS) and or the Fourier transform infrared (FTIR) spectra. During liquid-phase oxidative degradation of phenol under irradiation with UV light characteristic of 365 nm, the TiO2N(SC) exhibited much higher activity than either the TiO2N(DC) or the TiO2(SC), i.