Customized Ultrathin Oxygen Vacancy-Rich BiWMoO Nanosheets Enabling a Stepwise Charge Separation Relay and Exposure of Lewis Acid Sites toward Broad-Spectrum Photothermal Catalysis.

Designing robust photocatalysts with broad light absorption, effective charge separation, and sufficient reactive sites is critical for achieving efficient solar energy conversion. However, realizing these aims simultaneously through a single material modulation approach poses a challenge. Here, a 2D ultrathin oxygen vacancy (Ov)-rich BiWMoO solid solution photocatalyst is designed and fabricated to tackle the dilemma through component and structure optimization.

Design and fabrication of self-suspending aluminum-plastic/semiconductor photocatalyst devices for solar energy conversion.

The design and synthesis of self-suspending photocatalyst device with easy recyclability is important for practical application. Here, this work utilizes aluminum-plastic package waste as raw material to prepare an aluminum-plastic supported TiO (AP-TiO) photocatalyst device through 3D printing design and surface deposition method. A series of characterizations were carried out to explore the structure, morphology and performance of the AP-TiO device.

High-efficiency visible-light-driven oxidation of primary C-H bonds in toluene over a CsPbBr perovskite supported by hierarchical TiO nanoflakes.

Photocatalytic oxidation of toluene to valuable fine chemicals is of great significance, yet faces challenges in the development of advanced catalysts with both high activity and selectivity for the activation of inert C(sp)-H bonds. Halide perovskites with remarkable optoelectronic properties have shown to be prospective photoactive materials, but the bulky structure with a small surface area and severe recombination of photogenerated electron-hole pairs are obstacles to application. Here, we fabricate a hierarchical nanoflower-shaped CsPbBr/TiO heterojunction by assembling CsPbBr nanoparticles on 2D TiO nanoflake subunits.

Visible-Light-Driven Photocatalytic Dehydrogenation of Alcohols on TiO via Ligand-to-Metal Charge Transfer for Coproduction of H and Aldehydes.

Developing visible-light-driven photocatalysts for the catalytic dehydrogenation of organics is of great significance for sustainable solar energy utilization. Here, we first report that aromatic alcohols could be efficiently split into H and aldehydes over TiO under visible-light irradiation through a ligand-to-metal charge transfer (LMCT) mechanism. A series of TiO catalysts with different surface contents of the hydroxyl group (-OH) have been synthesized by controlling the hydrothermal and calcination synthesis methods.

Recovery of copper from electroplating sludge using integrated bipolar membrane electrodialysis and electrodeposition.

Electroplating sludge, though a hazardous waste, is a valuable resource as it contains a large amount of precious metals. In this study, copper was recovered from the electroplating sludge using a technology that integrates bipolar membrane electrodialysis (BMED) and electrodeposition. The experimental results showed that Cu in the electroplating sludge was successfully separated and concentrated in the BMED system without adding any chemical reagents; the concentrated Cu was recovered in the form of copper foil in an electrodeposition system.

Pt-Chitosan-TiO for Efficient Photocatalytic Hydrogen Evolution via Ligand-to-Metal Charge Transfer Mechanism under Visible Light.

The Pt-chitosan-TiO charge transfer (CT) complex was synthesized via the sol-gel and impregnation method. The synthesized photocatalysts were thoroughly characterized, and their photocatalytic activity were evaluated toward H production through water reduction under visible-light irradiation. The effect of the preparation conditions of the photocatalysts (the degree of deacetylation of chitosan, addition amount of chitosan, and calcination temperature) on the photocatalytic activity was discussed.

Ultrathin Two-Dimensional ZnInS/Ni-B Heterostructure for High-Performance Photocatalytic Fine Chemical Synthesis and H Generation.

Photocatalytic H evolution coupled with organic transformation provides a new avenue to cooperatively produce clean fuels and fine chemicals, enabling a more efficient conversion of solar energy. Here, a novel two-dimensional (2D) heterostructure of ultrathin ZnInS nanosheets decorated with amorphous nickel boride (Ni-B) is prepared for simultaneous photocatalytic anaerobic H generation and aromatic aldehydes production. This ZnInS/Ni-B catalyst elaborately combines the ultrathin structure advantage of the ZnInS semiconductor and the cocatalytic function of Ni-B.

Construction of TiO-Eggshell for Efficient Degradation of Tetracycline Hydrochloride: Sunlight Induced In-Situ Formation of Carbonate Radical.

Photocatalytic degradation of an antibiotic by utilizing inexhaustible solar energy represents an ideal solution for tackling global environment issues. The target generation of active oxidative species is highly desirable for the photocatalytic pollutants degradation. Herein, aiming at the molecular structure of tetracycline hydrochloride (TC), we construct sunlight-activated high-efficient catalysts of TiO-eggshell (TE).

Amorphous Boron Dispersed in LaCoO with Large Oxygen Vacancies for Efficient Catalytic Propane Oxidation.

Unsatisfactory oxygen mobility is a considerable barrier to the development of perovskites for low-temperature volatile organic compounds (VOCs) oxidation. This work introduced small amounts of dispersed non-metal boron into the LaCoO crystal through an easy sol-gel method to create more oxygen defects, which are conducive to the catalytic performance of propane (C H ) oxidation. It reveals that moderate addition of boron successfully induces a high distortion of the LaCoO crystal, decreases the perovskite particle size, and produces a large proportion of bulk Co species corresponding to abundant oxygen vacancies.

A ZnO@ABS/TPU/CaSiO 3D skeleton and its adsorption/photocatalysis properties for dye contaminant removal.

Both adsorption and photocatalysis are considered to be effective methods for removing organic contaminants from dye wastewater. In this study, the construction of 3D skeletons based on the nanoparticles ZnO and ABS/TPU/calcium silicate (CaSiO) (shortened as ATC) were fabricated fused deposition molding (FDM) technology. Characterization by scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) depicted that ZnO nanospheres had been successfully grown on the 3D skeleton surface with an enlarged specific surface area.

Rational design of few-layer MoSe confined within ZnSe-C hollow porous spheres for high-performance lithium-ion and sodium-ion batteries.

Rechargeable battery systems, including Li-ion batteries and Na-ion batteries, have attracted great interest in energy storage because of their high energy density, low cost, efficient energy storage and suitable redox potential. Nevertheless, their rapid development is still greatly hampered by some typical constraints including low coulombic efficiency, large volume changes and severe particle agglomeration and pulverization during the charge-discharge process. Here, we fabricate a few-layer MoSe2 confined within a ZnSe-C hollow porous sphere nanocomposite through a simple self-assembly strategy followed by selenization, which efficiently circumvents these problems.

Facile synthesis of hierarchical lychee-like ZnVO@C/rGO nanospheres as high-performance anodes for lithium ion batteries.

In the present work, the hierarchical ZnVO@C/rGO composite with a unique lychee-like architecture was fabricated by a simple one-pot ethanol thermal reduction strategy. When used as an anode material, it exhibited outstanding electrochemical performance for lithium-ion batteries (LIBs). For instance, the ZnVO@C/rGO composite delivers high reversible capacities (1012 mAh g at 0.

S-Doped SbO Nanocrystal: an Efficient Visible-Light Catalyst for Organic Degradation.

The S-doped SbO nanocrystals were successfully synthesized using SbCl and thioacetamide (TAA) as precursors via a facile one-step hydrothermal method. The effects of pH of the precursor reaction solution on the product composition and property were determined. The results indicated that the doping amount of S could be tuned by adjusting the pH of the precursor solution.

Visible light-assisted efficient degradation of dye pollutants with biomass-supported TiO hybrids.

The objective of this work was to develop a novel organic-inorganic hybrid nanomaterial from agricultural biomass waste for environmental applications. The sugarcane bagasse (SB) supported TiO hybrids were firstly synthesized via a sol-gel method. A series of characterizations were carried out to reveal the structures and components of obtained hybrids.

Preparation and characterization of electrospun La(1-x)Ce(x)CoO(δ): Application to catalytic oxidation of benzene.

An electrospinning with calcination process was employed for the synthesis of La1-xCexCoOδ (x=0, 0.2, 0.4, 0.