A high selectivity of NO over N (simulating air) is found in silico when studying the adsorption of the ternary mixture NO/NO/N on the metal-organic framework MIL-127(Fe) by molecular simulations under consideration of the recombination reaction NO ↔ 2NO. The number of N atoms in nitrogen oxides NO and that in N is used to define a selectivity of the combined adsorption and chemical recombination that can reach values of about 1000.
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http://dx.doi.org/10.1021/acsomega.9b04494 | DOI Listing |
J Hazard Mater
January 2025
Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China; Laboratory of Quality and Safety Risk Assessment for Aquatic Product on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Shanghai Ocean University, Shanghai 201306, China. Electronic address:
The detection of heavy metal ions, particularly lead (Pb²⁺), in environmental samples is crucial for public health and safety. Current nucleic acid signal amplification methods for Pb²⁺ detection often rely on biological enzymes and are limited in applicability due to high costs, prolonged detection times, and nonspecific adsorption. In this study, we introduce an enzyme-free, DNAzyme-mediated isothermal catalytic hairpin assembly (DMICHA) assay, which combines a DNAzyme-based Pb²⁺ recognition module with a signal amplification process utilizing isothermal catalytic hairpin assembly (CHA).
View Article and Find Full Text PDFWater Res
December 2024
Department of Civil and Environmental Engineering Sciences, Institute IWAR, Chair of Water and Environmental Biotechnology, Technical University of Darmstadt, Germany. Electronic address:
Organic micropollutants (OMP) are ubiquitous in aquatic ecosystems and have a proven negative impact on the environment and drinking water resources. To remove OMP from municipal wastewater, the use of superfine Powdered Activated Carbon (sPAC) (d = 1.0 µm) compared to Powdered Activated Carbon (PAC) (d = 30.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China. Electronic address:
The transport of microplastics (MPs) is of great significance due to its potential threat to subsurface systems. The copresence of MPs and semi-conductor nanoparticles is quite common in practical environments (i. e.
View Article and Find Full Text PDFEast Mediterr Health J
December 2024
Department of Basic Sciences, Faculty of Civil Engineering, University of Aleppo, Aleppo, Syria.
Background: Hospital wastewater poses a significant threat to human health due to the presence of difficult-to-degrade organic compounds, active pharmaceutical ingredients and multiple inorganic substances that can pollute water resources and ecosystems.
Aim: To compare the effectiveness of different techniques for removing organic load from hospital laboratory wastewater in Aleppo, Syria.
Methods: We treated wastewater samples from hospital laboratories at Aleppo University Hospital, Syria, using several techniques, including biological treatment with the rotating biological contactor, adsorption with Syrian natural clay, coagulation with aluminium sulphate, advanced oxidation with ultrasound, and a combined treatment using natural clay and ultrasound.
ACS Appl Mater Interfaces
January 2025
Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France.
Metal-organic frameworks (MOFs) combined with polymers as hybrid materials offer numerous advantages such as enhanced performances through synergistic effects at their interface. The primary challenge in developing polymer/MOF hybrid matrix films is ensuring optimal dispersion and strong adhesion of crystalline MOFs to the polymer without aggregation, weak interaction, or phase separation. In this study, hierarchically porous UiO-66_NH/chitosan (ZrCSx-) films were designed by crystallizing UiO-66_NH within a chitosan (CS) skeleton.
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