Enhanced irradiation-resistance in NbMoTaW refractory high-entropy alloy via rhenium addition.

The He irradiation-induced mechanical and microstructural evolutions were studied in NbMoTaW (at.%) and NbMoTaWRe (at.%) refractory high-entropy alloys (RHEAs) films, respectively.

Highly efficient CO mineralization: Mechanisms and feasibility of utilizing electrolytic manganese residue as a feedstock and implementing ammonia recycling.

Electrolytic manganese residue (EMR) and CO emissions from the electrolytic manganese metal (EMM) production process present significant challenges to achieving cleaner production within the industry. Given the high capacity for CO sequestration and the stability of the sequestered forms, CO mineralization methods utilizing minerals or industrial residues have garnered considerable research interest. The efficacy of such methods is fundamentally dependent on the properties of the materials employed.

A novel dose-adjustment protocol for interrupted subcutaneous immunotherapy in children with allergic rhinitis.

To assess the effectiveness and safety of a new protocol for adjusting doses during interrupted subcutaneous immunotherapy maintenance, exceeding an 8-week interval, with mite allergen injections in children with allergic rhinitis. 194 children with allergic rhinitis who underwent subcutaneous immunotherapy and experienced interruptions lasting more than 8 weeks during maintenance were enrolled. Following the adoption of a novel dose-adjustment protocol, a real-world study was conducted.

Highly efficient Mn, Mg, and NH recovery from electrolytic manganese residue via leaching, solvent extraction, coprecipitation, and atmospheric oxidation.

Electrolytic manganese residue (EMR), a solid waste generated during electrolytic manganese production, exhibits substantial leaching toxicity owing to its elevated levels of soluble Mn and NH. The leaching and recovery of valuable metal ions and NH from EMR are key to the hazard-free treatment and resource utilization of EMR. In this study, two-stage countercurrent leaching with water was used to leach Mn, Mg, and NH from EMR.

Prevalence of allergen sensitization among children with allergic rhinitis in Changzhou, China: a retrospective observational study.

Objective: To determine the prevalence of sensitivity to common inhaled and food allergens among children with allergic rhinitis (AR) in Changzhou in eastern China and provide a basis for epidemiological research of pediatric allergic rhinitis and allergen avoidance in this region.

Methods: This was a retrospective observational study, a total of 1248 children with AR were enrolled at the Third People's Hospital of Changzhou between January 2018 and December 2019. The serum-specific immunoglobulin E (sIgE) to 19 kinds of inhaled and food allergens and serum total IgE were detected with the AllergyScreen test (Mediwiss Analytic GmbH, Moers, Germany).

Fabrication of magnetic FeO@SiO@BiOCO/rGO composite for enhancing its photocatalytic performance for organic dyes and recyclability.

A novel magnetic FeO@SiO@BiOCO/rGO composite comprising of uniform core-shell-structured FeO@SiO@BiOCO microspheres mounted on reduced graphene oxide (rGO) sheets was successfully fabricated by using a facile hydrothermal method. The adsorption-desorption isotherm of FeO@SiO@BiOCO/rGO belonged to type IV with an H4-type hysteresis loop. The specific surface areas and magnetization saturation value (M) of FeO@SiO@BiOCO/rGO (x = 0.

Comprehensive recovery of arsenic and antimony from arsenic-rich copper smelter dust.

In view of reducing contaminant and recovery arsenic and antimony, a novel technology was proposed to recover arsenic and antimony from arsenic-rich copper smelter dust comprehensively. The technique route includes three stages: arsenic and antimony trioxides were leached from the copper smelter dust with hydrochloric acid; trivalent arsenic ions (As) were then reduced to less toxic simple arsenic (As) by sodium hypophosphate (NaHPO) and recovered; and stepwise recovery of antimony by SbCl was achieved by the continuous distillation technique. The results indicates that the leaching efficiency of As and Sb was over 97.

Preparation and evaluation of bis(diallyl alkyl tertiary ammonium salt) polymer as a promising adsorbent for phosphorus removal.

Problems associated with water eutrophication due to high phosphorus concentrations and related environmentally safe solutions have attracted wide attention. A novel bis(diallyl alkyl tertiary ammonium salt) polymer, particularly poly(N,N,N,N-tetraallylhexane-1,6-diammonium dichloride) (PTAHDADC), was synthesized and characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance, scanning electron microscopy, mercury intrusion method, and thermogravimetric analysis. The adsorption characteristics in phosphorus were evaluated in dilute solution, and the recycling properties of PTAHDADC were investigated.

Removal of sodium oleate from synthetic manganese leaching solution by coagulation-dissolved air flotation.

The coagulation-dissolved air flotation for removal of sodium oleate (NaOL) from synthetic manganese leaching solution was focused in this study. It indicates that partially hydrolyzed polyacrylamide (HPAM), NaOL dosage and pH have a multiple effect on the removal efficiency of NaOL. The results represents a significant removal efficiency of 97.

Synthesis and characterization of magnetic FeO@CaSiO composites and evaluation of their adsorption characteristics for heavy metal ions.

A two-component material (FeO@CaSiO) with an FeO magnetite core and layered porous CaSiO shell from calcium nitrate and sodium silicate was synthesized by precipitation. The structure, morphology, magnetic properties, and composition of the FeO@CaSiO composite were characterized in detail, and its adsorption performance, adsorption kinetics, and recyclability for Cu, Ni, and Cr adsorption were studied. The FeO@CaSiO composite has a 2D core-layer architecture with a cotton-like morphology, specific surface area of 41.

Removal performance and mechanism of poly(N,N,N,N-tetraallylpropane-1,3-diaminium chloride) toward Cr(VI).

The adsorption characteristic and mechanism of poly(N,N,N,N-tetraallylpropane-1,3-diaminium chloride) (PTAPDAC) toward Cr(VI) ions were systematically investigated. Results showed that the removal efficiency of PTAPDAC toward Cr(VI) could reach above 98% at pH = 3-6. The equilibrium data of Cr(VI) adsorbed by PTAPDAC fitted the Langmuir model well, and the maximum sorption capacity deduced from the Langmuir model at 293 K was 273.

Polarization filter characters of the gold-coated and the liquid filled photonic crystal fiber based on surface plasmon resonance.

The polarization filter characters of a gold-coated and liquid-filled photonic crystal fiber are studied using the finite element method. Results show that the resonance strength and wavelengths are different in two polarized directions. Filling liquid of refractive index n=1.

[Analysis on the allergens in allergic rhinitis patients in Changzhou district of Jiangsu].

Objective: To investigate the distribution of positive allergens in patients with allergic rhinitis in Changzhou.

Method: A total of 4242 cases with allergic symptoms and signs underwent skin prick test with 16 kinds of standardized allergens. The common allergens were found out.