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Bavachin Causes Ferroptosis with the STAT3/P53/SLC7A11 Axis in Osteosarcoma Tissue.
The photocatalytic efficiency is limited by poor charge separation efficiency and high carrier transport activation energy (CTAE) of photogenerated electron/hole pairs than traditional semiconductor. Hybridizing nanostructure with two staggered alignment band structure is proved as an effective strategy to mitigate these two challenges but still suffers a strong coulomb electrostatic repulsive force between two heterogeneous semiconductors. Here, we steer a friendly sulfurization process to construct BiVO4@Bi2S3 heterojunction with a scenario of cosharing Bi atoms. The intimate atomic-level contact between BiVO4 and Bi2S3 not only enhances the visible-light absorption and lowers CTAE, but also accelerate carrier's separation efficiency, which enables it to deliver the best photocatalytic performance toward reduction of Cr(VI). BiVO4@Bi2S3 only needs less than 40 min to completely reduce 50 ppm Cr(VI) solution. The type II heterojunction photocatalytic mechanism is systematically studied to decipher the carriers' transfer track between BiVO4 and Bi2S3. Our new finding of engineering inorganic heterojunction by cosharing atoms opens a new avenue to other similar materials for potential applications.Heterogeneous Fenton-like catalyst prepared by dispersing iron oxides in activated carbon (FeOx@AC) has frequently been assembled for advanced oxidation processes (AOPs). An intriguing but barely emphasized property of FeOx@AC is that it can be easily reactivated through a simple carbothermal reaction. Importantly, by this manner the life time of FeOx@AC could be effectively enhanced. We herein reported the synthesis of FeOx@ACs hydrothermally with assistance of several commercially available surfactants and their performance in degrading real dye wastewater were evaluated. In general, as-synthesized FeOx@ACs were noted to equip high Fe content. Deposited FeOx reduced the fraction of micropores but simultaneously introduced additional mesopores and macropores. Elevated magnetite content was observed in FeOx@AC equipped with high fraction of micropore and mesopore and macropore but fast dye degradation occurred at FeOx@AC possessing low fraction of micropore along with low mesopores and macropores. Reactivation via carbothermal reaction redistributed the deposited FeOx by increasing micropores while decreasing mesopores and macropores. Importantly, well dispersed FeOx synthesized with the assistance of surfactants exhibited high resistance to the corrosion in the degradation process. Z-VAD-FMK For the perspective of circular economy, deep understanding the material chemistry of FeOx@AC would be of particularly interest for further enhancing its life time.The reduction of Hg emissions from non-ferrous metal smelting was proposed in the Minamata Convention. Regenerable sulfureted MoO3/TiO2, which displayed excellent performance in capturing gaseous Hg0, was once developed by us to recover gaseous Hg0 in smelting flue gas (SFG) for centralized control. Recently, a large amount of spent commercial selective catalytic reduction catalysts (for example V2O5-MoO3/TiO2) mostly deactivated by CaSO4 was formed, creating a need for their safe disposal. As the main constituent of deactivated V2O5-MoO3/TiO2 is MoO3/TiO2, deactivated V2O5-MoO3/TiO2 was sulfureted to capture gaseous Hg0 from SFG for its safe disposal and the effects of V2O5 and CaSO4 on Hg0 adsorption onto sulfureted MoO3/TiO2 were investigated. Although the capturing capacity of sulfureted MoO3/TiO2 moderately decreased after the impregnation of V2O5 and CaSO4, sulfureted deactivated V2O5-MoO3/TiO2 still displayed excellent performance and reproducibility in gaseous Hg0 capture. Meanwhile, the cost performance of sulfureted deactivated V2O5-MoO3/TiO2 for Hg0 capture was outstanding as deactivated V2O5-MoO3/TiO2 needs to be safely disposed. Therefore, deactivated V2O5-MoO3/TiO2 can be sulfureted as a regenerable and low-cost sorbent that is effective in recovering gaseous Hg0 from SFG, as well as being a cost-effective and environmentally friendly method for the safe disposal of spent V2O5-MoO3/TiO2.Seven insect taxa belonging to five different orders were collected from a former Chinese e-waste dumping site to investigate the occurrences of organophosphorus flame retardants (PFRs) and plasticizers. The total PFR and plasticizer concentrations were in the ranges of 2.3-91 ng/g ww (median 20 ng/g ww) and 420-15600 ng/g ww (4040 ng/g ww), respectively. The contaminant patterns varied greatly among different insect taxa owing to their specific habitats and feeding habits. The larvae of litchi stinkbugs and grasshoppers exhibited significantly higher PFR concentrations than their adult counterparts. In contrast, the adults of butterflies, moths, and dragonflies exhibited significantly higher PFR concentrations than their larvae. Additionally, negative linear correlations were frequently observed between the ratios of PFR and plasticizer concentrations in adult to larva (A/L) and log KOW in the four studied insect taxa, which were different from those corresponding to persistent organic pollutants. Notably, the contaminant concentrations of dragonfly ecdysis were significantly higher than those of dragonfly larvae, indicating that ecdysis is an important pathway by which dragonflies remove PFRs and plasticizers.The current study elucidates the impact of soil metal contamination on earthworm communities at the ecotype level. A total of 292 earthworms belonging to 13 species were collected in metal-contaminated soils from Wanshou (WSC), Daxing (DXC) and Lupu (LPC) plots (1.40-6.60, 29.4-126, 251-336 and 91.9-109 mg/kg for soil Cd, Cu, Zn and Pb, respectively) in Hunan Province, southern China. The results showed that the total earthworm density and biomass significantly decreased along the increasing metal-contaminated gradient while epigeic earthworms became more dominant than anecic and endogeic earthworms. Redundancy analysis (RDA) showed that soil pH, total nitrogen and Cd concentration were the primary factors influencing earthworm communities, explaining 33.7%, 29.1% and 26.7% of the total variance, respectively. In addition, epigeic earthworm Metaphire californica bioaccumulated more Cd (0.27-0.60 mmol/kg), while endogeic earthworm Amynthas hupeiensis and anecic earthworm Amynthas asacceus bioaccumulated more Cu (0.
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