The effective conversion of carbon dioxide (CO2 ) and nitrogen (N2 into urea by photocatalytic reaction under mild conditions is considered to be a more environmentally friendly promising alternative strategies. However, the weak adsorption activation ability inert gas on photocatalysts has become main challenge that hinder advancement this technique. Herein, we have successfully established mesoporous CeO2-x nanorods with adjustable oxygen vacancy concentration heat treatment in Ar/H2 (90 %...

Propyl gallate (PG) as one of the important synthetic antioxidants is widely used in prevention oxidative deterioration oils during processing and storage. Determination PG has received extensive concern because its possible toxic effects on human health. Herein, we report a photoelectrochemical (PEC) sensor based ZnO nanorods MoS2 flakes with vertically constructed p–n heterojunction. In this system, n-type p-type heterostructures exhibited much better optoelectronic behaviors than their...

Microelectrode-based electrochemical (EC) and photoelectrochemical (PEC) sensors are promising candidates for in vivo analysis of biologically important chemicals. However, limited selectivity complicated biological systems poor adaptability to electrochemically non-active species restrained their applications. Herein, we propose the concept modulating PEC output by a fluorescence resonance energy transfer (FRET) process. The emission donor was dependent on concentration target SO2 , which...

The conversion of N 2 and CO into urea through a photocatalytic C–N coupling reaction under ambient conditions serves as novel green avenue for synthesis.

Type II heterojunction of 100Cu 2 O–TiO exhibits enhanced photodegradation rate TC at the sacrifice absolute decomposition, while 111Cu Z-scheme displays simultaneous increased degradation and profound decomposition.

The production of reactive oxygen species (ROS) leads to the generation oxidative stress, which will result in excessive and accumulation melanin body even occurrence some skin diseases. intervention antioxidants can slow down rate formation extent. In order explore relationship between ROS, antioxidants, this work investigated effects on by scavenging ROS vitro, where zebrafish were used as model organism vivo experiments. results showed that inhibition natural was GSH > AA GA PG BHT BHA...

Abstract In this study, two morphologies of cerium oxide (CeO 2 ) abrasive particles, octahedral and spheroidal, are synthesized by solvothermal method using nitrate hexahydrate (Ce(NO 3 ‐6H O) as raw material. Fourier infrared spectroscopy, X‐ray diffractometer (XRD) scanning electron microscopy (SEM) used to characterize the composition morphology CeO particles. The is for chemical mechanical polishing (CMP) Si surface 6H‐SiC wafers, polished wafers observed atomic force (AFM). After with...

The levels of dopamine (DA) in living organisms have strong effects on many biological processes and diseases, such as Parkinson's disease Alzheimer's disease. Therefore, it has great significance for sensitive selective detection DA. Herein, the [email protected]2O3 nanoparticles-based electrochemical (EC) sensor ([email NPs/GCE) is developed chronoamperometric DA with high sensitivity good anti-interference ability through simple immobilization nanoparticles glassy carbon electrode (GCE)...

Photocatalytic N2 fixation to NH3 using water as the reductant constitutes an encouraging method for synthesized ammonia (NH3) in future, which helps discover efficient photocatalysts improving sunlight utilization well enhancing catalytic efficiency fixation. Hematite (α-Fe2O3), a high-stability, low-cost, natural abundance semiconductor photocatalyst, could represent promising candidate visible-light-driven N2-to-NH3 conversion terms of cost-effectiveness, while related reports are still...

The hydrogen peroxide (H2O2) levels in living organisms and environment have strong effects on many biological processes inducing cell apoptosis/cell necrosis wound disinfection. Therefore, it is important to an accurate situ detection of H2O2. Herein, AuPd@FexOy nanozyme-based electrochemical (EC) sensor (termed as NPs/GCE) with good stability anti-interference ability has been prepared for the H2O2 by differential pulse voltammetry (DPV) chronoamperometry dual-measurement modes. NPs/GCE...

Ceria-coated silica (SiO 2 /CeO ) composite abrasives were prepared through a novel homogeneous precipitation method using commercial sol as the silicon resource and cerium nitrate (Ce(NO 3 hexamethylenetetramine (HMT) aqueous mixtures coating precursors. The phase composition, nano-topography, size distribution, chemical structure of as-prepared particles characterized by X-ray diffraction, transmission electron microscopy, Zetasizer Nano ZS90 Fourier infrared spectra. In addition, possible...

Abstract Microelectrode‐based electrochemical (EC) and photoelectrochemical (PEC) sensors are promising candidates for in vivo analysis of biologically important chemicals. However, limited selectivity complicated biological systems poor adaptability to electrochemically non‐active species restrained their applications. Herein, we propose the concept modulating PEC output by a fluorescence resonance energy transfer (FRET) process. The emission donor was dependent on concentration target SO 2...

Abstract Photocatalytic ammonia (NH 3 ) synthesis from N 2 is a strategy conducive to carbon neutrality because it avoids high energy consumption and emission process in the industrial of NH . However, structure-activity relationship bimetallic active centers heterogeneous catalysts still dimness for high-performance photocatalytic nitrogen reduction reaction (pNRR). Here, rational -bridging heterogeneously pNRR has been expanded through regulating Ti-Pd at TiO (101)/Pd (111) interface...

Abstract The effective conversion of carbon dioxide (CO 2 ) and nitrogen (N into urea by photocatalytic reaction under mild conditions is considered to be a more environmentally friendly promising alternative strategies. However, the weak adsorption activation ability inert gas on photocatalysts has become main challenge that hinder advancement this technique. Herein, we have successfully established mesoporous CeO 2‐x nanorods with adjustable oxygen vacancy concentration heat treatment in...

The hydrogen peroxide (H2O2) levels in living organisms and environment have a strong effect on many biological processes inducing cell apoptosis/cell necrosis wound disinfection. Therefore, it is important to accurate real-time detection of H2O2. Herein, an AuPd@FexOy nanozyme-based electrochemical (EC) sensor (termed as NPs/GCE) has been prepared for H2O2 with good stability anti-interference ability by differential pulse voltammetry (DPV) chronoamperometry dual-measurement modes. NPs/GCE...

The conversion of N2 and CO2 into urea through photocatalytic C–N coupling reaction under ambient condition serves as a novel green avenue for synthesis. However, the poor adsorption C-N capability inert gas molecules hinder efficient catalytic activity. Herein, palladium-decorated CeO2 (Pd-CeO2) was demonstrated photocatalyst delivered remarkable yield rate 9.2 μmol h-1 g-1, which superior than that pristine (2.5 g-1). comprehensive investigations further endorsed emerged space-charge...