Photo-Fenton Degradation of Tetracycline and Photoelectrochemical Properties of ZnFeO@ZnWO Heterostructure Composite Coupling.

Problems such as bacterial resistance caused by tetracycline antibiotics pose a serious threat to human production and life and ecosystems. We prepared ZnFeO@ZnWO heterojunction nanocomposites using hydrothermal and coprecipitation methods. The micromorphology, structure, and photoelectrochemical properties were analyzed.

Ni-CeO Heterostructures in Li-S Batteries: A Balancing Act between Adsorption and Catalytic Conversion of Polysulfide.

Lithium-sulfur (Li-S) batteries have attracted considerable attention over the last two decades because of a high energy density and low cost. However, the wide application of Li-S batteries has been severely impeded due to the poor electrical conductivity of S, shuttling effect of soluble lithium polysulfides (LiPSs), and sluggish redox kinetics of S species, especially under high S loading. To address all these issues, a Ni-CeO heterostructure-doped carbon nanofiber (Ni-CeO -CNF) is developed as an S host that combines the strong adsorption with the high catalytic activity and the good electrical conductivity, where the LiPSs anchored on the heterostructure surface can directly gain electrons from the current collector and realize a fast conversion between S and Li S.

Ultrahigh-response hydrogen sensor based on PdO/NiO co-doped InO nanotubes.

Hydrogen can be regarded as an ideal type of secondary energy considering its potential for achieving renewable and sustainable development due to water being its sole combustion product and its possible production by solar energy-based water electrolysis. Monitoring the presence and concentration of hydrogen during production, transportation, and application requires a hydrogen gas sensor with high response, high selectivity, and fast response and recovery times. In an attempt to meet these requirements, NiO and PdO are used in the co-doping of InO nanotubes by subsequent electrospinning and impregnation under UV irradiation.

Role of nickel dopant on gas response and selectivity of electrospun indium oxide nanotubes.

It has been demonstrated that the incorporation of Ni into metal oxide-based gas sensors often enhances the sensing performance by increasing the catalytic and heterojunction effects. However, it remains unclear how these two effects work either individually or synergistically in gas sensing. Herein, a series of Ni-doped InO nanotubes (NIO NTs) with different doping concentrations were synthesized through a traditional electrospinning technique.

Energy storage mechanism in aqueous fiber-shaped Li-ion capacitors based on aligned hydrogenated-LiTiO nanowires.

It is reported that Li ions can contribute a lot to the capacitance of aqueous Li-ion capacitors (LICs), which might be due to the intercalation/de-intercalation processes of Li ions that also occur at the anodes. However the energy storage mechanism in the aqueous LIC system still requires further proof. In this work, a type of aqueous fiber-shaped LIC has been designed and developed using hydrogenated LiTiO (H-LTO) anodes, active carbon (AC) cathodes, and LiCl/PVA gel electrolytes with a double-helical structure.

Interface/defect-tuneable macro and micro photoluminescence behaviours of trivalent europium ions in electrospun ZrO/ZnO porous nanobelts.

It was demonstrated that suitable interfaces between two materials can enhance the separation of photogenerated carriers. In this study, ZrO/ZnO interfaces with type I structure were designed and prepared by the electrospinning technique. The obtained ZrO/ZnO:Eu (ZZOE) composites are highly porous in the form of nanobelts with width of 600-700 nm, comprising ZnO and ZrO nanocrystals, and the Eu doping can hinder the t-m phase transition of ZrO.