Synergistic Air pollution and CO Emission Reduction in China's Iron and Steel Industry Based on Real-time Monitoring Data.

As the world's largest producer of crude steel, China's iron and steel industry (ISI) is one of the major sources of both air pollutant and carbon dioxide (CO) emissions in the country. To better track emission patterns and assess the synergistic reduction potential under various policies during the 14 Five-Year Plan period, a high-frequency, smokestack-level and national emission database was developed that covers both air pollutants (i.e.

Simultaneous adsorption and detection of naphthenic acids using potassium-doped carbon dots/lignin-based porous carbon composite.

Naphthenic acids (NAs) in petroleum wastewater are difficult to volatilize, degrade and persistent. In this study, we developed a potassium-doped carbon dots/lignin-based porous carbon composite (K-CDs/LPC-X) using renewable lignin as a carbon source and potassium-doped carbon dots (K-CDs) as a fluorescent probe. Lignin, a natural and sustainable biomass material, serves as a cost-effective, eco-friendly carbon precursor and forms highly porous structures during pyrolysis‌.

1,3,2-Dioxathiolane 2,2-dioxide additive in carbonate-based gel polymer electrolyte enables dual-Interface stabilization for high-performance long-cycling sodium metal batteries.

Sodium metal batteries (SMBs) are promising next-generation energy storage systems due to their exceptional theoretical capacity (1165 mAh g) and the widespread availability of sodium. However, heterogeneous sodium deposition triggers irregular solid electrolyte interphase (SEI) formation, intensifies parasitic interfacial reactions, and accelerates persistent SEI deterioration. This study introduces a molecular engineering approach for constructing a novel carbonate-derived gel polymer electrolyte (GPE) system, denoted as THEP (composed of trimethylolpropane trimethacrylate (TMPTMA), 1,6-hexanediol diacrylate (HDDA), ethyl methyl carbonate (EMC), and propylene carbonate (PC)), via in-situ thermal polymerization.

Discovery of Novel 2-Substituted Aniline Pyrimidine Based Derivatives as Potent Mer/c-Met Dual Inhibitors with Improvement Bioavailability.

This study reports the rational design and systematic evaluation of a novel series of 2-substituted aniline pyrimidine derivatives as dual Mer/c-Met inhibitors. Among the synthesized compounds, 17c demonstrated potent dual kinase inhibition, with IC values of 6.4 ± 1.

Epitaxial growth of nano-interconnected catalysts on Cu dendrites with fast gas bubble delivery for highly efficient oxygen evolution reaction.

The water electrolysis process, involving multiple electron transfer steps, is inherently hindered by sluggish reaction kinetics and inefficient mass transport, highlighting the need for advanced electrocatalysts with enhanced activity and durability. In this study, a rapid epitaxial solution combustion method combined with a displacement reaction on iron foam (IF) enabled the fabrication of pine-leaf-shaped dendritic electrodes (PLS-TMOs/CuO/Cu/IF) featuring a hierarchical porous surface. The arrangement of the pine-leaf-shaped dendrites, with their high hydrophilicity, reduces bubble aggregation and facilitates efficient gas release and transport through directional channels.

Achieving Large Valley Polarization in Altermagnet Semiconductor Mg(FeN) Monolayer.

Achieving valley polarization in altermagnets holds crucial significance for advancing the field of valleytronics. In this study, the Mg(FeN) monolayer is predicted as an altermagnet semiconductor with an in-plane magnetic anisotropy. Moreover, a pair of energy-degenerate valleys occurs in the present Mg(FeN) monolayer, which is connected by the crystalline symmetry.

Oxidation-Enhanced Piezocatalytic Activity in Carbon Nitride-Based Catalysts for Hydrogen and Hydrogen Peroxide Production.

Driven by the urgent need for a green, safe, and cost-effective approach to producing H and HO-both highly valuable in green energy and environmental protection fields-piezocatalysis, which converts mechanical energy into valuable chemicals, has emerged as a promising solution. However, current catalyst systems face challenges due to the need for materials with both a strong piezoelectric effect and favorable catalytic activity. Herein, the construction of an oxidized carbon nitride (g-CN) matrix anchored with TiO nanoparticles via alkaline hydrothermal treatment is reported.

Investigation into the Classification of Cough Sounds for Early Asthma Screening.

Purpose Of Review: This review aims to explore an effective and scalable approach for early asthma detection using cough sounds. The main objective is to evaluate whether a multi-model deep learning fusion framework can improve diagnostic accuracy and generalizability in real-world settings.

Recent Findings: Recent research in respiratory sound analysis has demonstrated the potential of deep learning models in detecting pulmonary diseases.

Deciphering Neodymium Concentration-Dependent Structure-Thermodynamics Interplay in Molten LiF-NdF Salts: A Multiscale Mechanistic Exploration.

First-principles molecular dynamics simulations combined with differential scanning calorimetry experiments are employed to systematically elucidate how NdF concentration modulates the structural and thermodynamic properties of molten LiF-NdF (FLiNd) complexes─an important salt system unit for Generation IV nuclear reactor applications. Multiscale analysis unveils the concentration-dependent evolution of ionic pair or cluster architectures, electronic structures, phonon vibration modes, and thermophysical properties at operational temperatures, with particular emphasis on the ionic conduction mechanism of molten FLiNd. Preliminary observations suggest that the melting enthalpy depression may correlate with weakened cation-F interactions as NdF concentration increases, percolation-limited transport appears to be predominantly influenced by NdF ( = 7 or 8) polyhedra, possibly due to enhanced electronic polarization effects, and emergent Nd-Nd-Nd networks could potentially contribute to phonon mode softening and a reduction in ionic conductivity.

Multi-Catalytic-Field Assisted Conversion of Low-Concentration CO in Steel Byproduct Gas for Synergistic Steel-Chemical Production.

ConspectusThe iron and steel industry, as a major global CO emitter, urgently requires technological breakthroughs in its carbon neutrality pathway. Existing emission reduction technologies such as carbon capture, utilization and storage are economically insufficient, while the full utilization of byproduct gas may lead to energy shortages in steel enterprises. Steel byproduct gases (e.

Enhanced curcumin delivery behavior of starch-based emulsion-filled gel by granular and molecular starch transformation: From gel formation to controlled release.

An elastic hydrophobic ingredient-loaded starch-based emulsion-filled gel with high formability was developed in this study. The effect of granular/molecular starch transformation in emulsion-filled gel on its curcumin delivery functionality was focused on for the first time. Curcumin was dissolved in oil droplets, further tightly wrapped by a starch gel three-dimensional network.

[Distribution, Accumulation, and Amplification of Per- and Polyfluoroalkyl Substances in Organisms in Coastal Waters of Bohai Sea].

Per- and polyfluoroalkyl substances （PFAS）, as a class of emerging environmental contaminants, have garnered significant attention because of their widespread presence. With some legacy PFAS phased out, novel PFAS are increasingly produced and utilized. However, research on the pollution characteristics, bioaccumulation, and biomagnification of these emerging ones remains limited.

Seasonal co-occurrence and inhalation risks of microplastics and benzotriazole ultraviolet stabilizers in atmospheric PM from northern Chinese city.

Microplastics (MPs) and benzotriazole ultraviolet stabilizers (BUVs) are emerging contaminants in airborne PM, yet their co-occurrence patterns, seasonal dynamics, and health risks remain poorly understood. We conducted a year-long study (2023-2024) in Shijiazhuang, a northern Chinese city, analyzing PM samples (n = 117) for MPs (abundance, size, polymer type) and BUVs (UV-320, UV-327, UV-328) via microscopy, Raman spectroscopy, and UPLC-MS/MS. Correlations with criteria air pollutants (PM, PM, NO, CO and O) and meteorological factors (temperature, humidity and wind scale) were assessed using spearman analysis.

Progress in Stereoselective Haloamination of Olefins.

The regio- and stereoselective adjacent bifunctionalization of olefins with amine and halogen groups can be effectively accomplished through catalytic haloamination methods. Stereoselective haloamination has emerged as a pivotal methodology for the introduction of halogen functional groups into chiral amines, demonstrating substantial applications in medicinal chemistry and organic synthesis. Since 1999, significant advancements have been achieved in this field, driven by innovations in catalytic systems and methodologies.

A Comparative Study on ZrO- and MgO-Based Sulfonic Acid Materials for the Reactive Adsorption of -Xylene.

The recovery and abatement of volatile organic compounds (VOCs) have received increasing attention due to their significant environmental and health impacts. Supported sulfonic acid materials have shown great potential in converting aromatic VOCs into their non-volatile derivatives through reactive adsorption. However, the anchoring state of sulfonic acid groups, which is closely related to the properties of the support, greatly affects their performance.

Mechanism of soil microbial community degradation under long-term tomato monoculture in greenhouse.

Tomato ( L.), an economically significant crop, is frequently cultivated in greenhouses under continuous monoculture systems. Motivated by intensive agricultural practices and economic incentives, continuous cropping has become prevalent in China, yet it often results in soil degradation, including nutrient imbalances and microbial community shifts.

Research Progress on Phosphorus/Carbon Anode Materials for Sodium-Ion Batteries.

Phosphorus-based anode materials exhibit a high theoretical specific capacity as negative electrodes in sodium ion batteries. However, their low conductivity necessitates compounding with carbon materials. The alloying process between phosphorus and sodium in phosphorus/carbon anodes results in significant volume expansion, leading to phosphorus powdering and detachment, thereby compromising the battery cycle life.

Linkage unit modulation of the polymers induces type-I to S-scheme transition in polymer/g-CN heterojunctions for enhanced hydrogen evolution and chromium (VI) reduction.

Building polymer heterojunctions (PHJs) is a promising way to enhance the performance of single-polymer photocatalysts, but it's still challenging to design the ideal structure with well-matched energy levels and strong interface synergy by precisely tuning the molecular structure of polymer. Herein, two triazine-based conjugated porous polymers (CPPs) were synthesized in advance including TB and TR via linkage unit modulation at the molecular level, and then their PHJs with carbon nitride (g-CN) nanosheet including TB/CN and TR/CN were successfully constructed by the convenient physical ball milling method. Theoretical calculations, electron paramagnetic resonance (EPR), and in situ X-ray absorption near-edge structure (XANES) spectra show that replacing thiophene rings in TR with phenyl rings in TB changes the PHJ structure from type-I (TR/CN) to an S-scheme (TB/CN) heterojunction.

Vertical dynamics of DOM-specialized bacteria and fungi drive stability in stratified reservoirs: Mechanisms revealed by machine learning.

Thermal stratification in reservoirs exacerbates the vertical differentiation of dissolved organic matter (DOM). However, the mechanisms underlying microbial community stability and carbon cycle regulation remain unclear. In this study, the vertical patterns of DOM-related microorganisms: obligate labile and obligate refractory (OLB and ORB) DOM-associated bacteria and fungi (OLF/ORF) were investigated in a thermally stratified drinking water reservoir.

Unveiling the Structural Evolution of Europium-Doped Boron Clusters: From Half Sandwich to a Novel 22-Coordinate Molecular Drum.

In recent years, lanthanide-doped boron clusters have attracted considerable attention. However, the structural evolution and stability of medium-sized boron clusters doped with Eu atoms remain largely unknown. In this study, a combination of particle swarm optimization and density functional theory is employed to systematically investigate the structural evolution and stability of Eu-doped boron clusters, EuB (n = 1-24).

Sacrificial-Agent-Triggered Mass Transfer Gating in Covalent Organic Framework for Hydrogen Peroxide Photocatalysis.

Covalent organic framework (COF) photocatalysts for HO production remain challenging by mass transport limitations and poor charge separation efficiency. Herein, a sacrificial agent-triggered mass-transfer gating (MTG) strategy is developed to reconfigure interfacial reaction for photocatalytic HO generation via synthesized benzothiazole-COFs. This enables precise switching of the dominant photocatalytic mechanism between surface-confined directional charge transfer pathways and diffusion-dominated redox processes.

C─C Bond Formation via Reductive Elimination at Rare Earth Centers.

Reductive elimination is one of the most important elementary reactions employed for constructing various chemical bonds in transition metal complex-mediated transformations. However, due to the lack of two-electron transfer, rare earth (RE) centers have been considered incapable of promoting reductive elimination, thus limiting the reactivity of RE complexes and their applications in synthetic chemistry. In the presented study, we demonstrated the reactions of β-diketiminate-supported dialkyl RE(III) complexes (L-κN,N')RE(III)(CHSiMe)(THF) (1-RE, RE = Y, Er, Yb, and Lu; L = {[(2,4,6-MeCH)NCMe]CH}) with azobenzene at ambient conditions, resulting in the formations of (L-κN,N')RE(III)(η-cis-PhNNPh)(THF) (2-RE) and 2-[(trimethylsilyl)methyl]azobenzene (I) via a reductive elimination-powered pathway.

Investigation of Four Sets of NMR Spectra for One Racemic Compound of Pseudoresonance Structures.

A racemic compound, (*)-3-[(1*,3*)-3-hydroxy-1,3-dihydroisobenzofuran-1-yl]-2-(naphthalen-1-yl)-isoindolin-1-one (), was synthesized and found to exhibit four distinct sets of H and C NMR signals in CDCl solution. The four sets of H NMR signals displayed relative integration ratios of approximately 1:1:0.8:0.

Amorphous Double Cocatalyst Enhanced BiVO Photoanode for Efficient Solar-Driven Water Splitting.

Photoelectrochemical (PEC) water splitting has emerged as an effective method to address energy and environmental challenges. In this study, a novel BiVO/FeOOH/CACo photoanode is developed by integrating FeOOH and cobalt cinnamate (CACo) cocatalysts onto the BiVO surface for enhanced PEC water splitting. Compared with the reversible hydrogen electrode (RHE), the photocurrent density of the fabricated photoanode reached 3.