Mackinawite nanozymes as reactive oxygen species scavengers for acute kidney injury alleviation.

Background: Iron sulfide nanomaterials have been successfully employed as therapeutic agents for bacterial infection therapy and catalytic-ferroptosis synergistic tumor therapy due to their unique structures, physiochemical properties, and biocompatibility. However, biomedical research and understanding of the biological functions of iron sulfides are insufficient, and how iron sulfide nanomaterials affect reactive oxygen species (ROS) in diseases remains unknown. Acute kidney injury (AKI) is associated with high levels of ROS, and therefore nanomedicine-mediated antioxidant therapy has emerged as a novel strategy for its alleviation.

Facile construction of Z-scheme AgCl/BiTaO photocatalysts for effective removal of tetracycline under visible-light irradiation.

A string of AgCl/BiTaO two-component composite was synthesized by hydrothermal and deposition-precipitation process initially. The photocatalytic activities of mixed-phase AgCl/BiTaO were evaluated toward the decomposition of tetracycline (TC). Among these as-prepared materials, AgCl/BiTaO nanocomposites when the molar ratio of baked materials between AgCl and BiTaO was 1:5 presented the optimal photocatalytic quantum efficiency for TC dissociation (86.

Spatial characterization of HCHO and reapportionment of its secondary sources considering photochemical loss in Taiyuan, China.

Formaldehyde (HCHO) plays an important role in atmospheric ozone (O) formation. To accurately identify the sources of HCHO, carbonyls and volatile organic compounds (VOCs) were measured at three urban sites (Taoyuan, TY-U; Jinyuan, JY-U; Xiaodian, XD-U) and a suburban site (Shanglan, SL-B) in Taiyuan during a high O period (from July 20 to August 3, 2020). The average mixing ratio of HCHO at XD-U (8.

The thermal expansion exfoliation technology and lithium promoter assistant afford CuO/graphene as a high-performance anode for lithium-ion batteries.

The ability to rationally design a copper oxide anode with superior rate performance that possesses an ultra-small particle size is highly desirable for lithium-ion batteries (LIBs). Herein, the rapid and effective thermal expansion exfoliation technology was employed to synthesize ultra-small CuO nanoparticles (∼2.7 nm) uniformly dispersed on graphite oxide after popping (CuO/Li-PGO), in which the addition of lithium promoted the exfoliation process to obtain an enlarged specific surface area and efficient transfer ability of PGO.

-Position synergistic effect induced by Ni-Mo co-doped WSe to enhance the hydrogen evolution reaction.

Transition metal dichalcogenides have been the most attractive two-dimensional layered materials for electrocatalytic hydrogen evolution due to their unique structure and multi-phase electronic states. However, the enhancement of the WSe electrocatalytic hydrogen evolution reaction (HER) performance by bimetal co-doping has been rarely reported. Herein, the NiMo-WSe catalyst has been synthesized by a one-step hydrothermal reaction, with lower overpotentials of 177 and 188 mV at a current density of 10 mA cm in 0.

One-dimensional N-doped carbon nanofibers produced by pre-oxide treatment for effective lithium storage.

Amorphous carbon materials have been confirmed as attractive anode materials for lithium-ion batteries. Herein, an effective strategy to fabricate amorphous carbon materials at low temperature under air atmosphere is proposed. As demonstrated, one-dimensional nitrogen-doping carbon nanofibers were obtained through simple electrospinning technology, following low-temperature heat treatment.

Characteristics of atmospheric volatile organic compounds in urban area of Beijing: Variations, photochemical reactivity and source apportionment.

Atmospheric volatile organic compounds (VOCs) were observed by an on-line gas chromatography-flame ionization detector monitoring system from November 2016 to August 2017 in Beijing. The average concentrations were winter (40.27 ± 25.

Serious BTEX pollution in rural area of the North China Plain during winter season.

Atmospheric BTEX compounds (benzene, toluene, ethylbenzene and xylenes) in a rural site of the North China Plain (NCP) were preliminarily investigated in winter, and the outdoor concentrations (25.8-236.0 μg/m3) were found to be much higher than those reported in urban regions.