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A novel π-complexation adsorbent is fabricated by grafting Cu(I)-containing molecule precursors onto β-cyclodextrin. The adsorbent provides a molecular-level dispersion of Cu(I), which is particularly beneficial to the adsorptive removal of aromatic sulfur thiophene, and is impossible to be realized through the conventional thermal method.
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http://dx.doi.org/10.1039/c0cc04587j | DOI Listing |
Langmuir
September 2025
Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry, Faculty of Chemistry, USTHB, BP 32, 16111, Algiers, Algeria.
Azo dyes, prevalent in various industries, including textile dyeing, food, and cosmetics, pose significant environmental and health risks due to their chemical stability and toxicity. This study introduces the synthesis and application of a copper hydrogen-π-bonded benzoate framework (Cu-HBF) and its derived marigold flower-like copper oxide (MFL-CuO) in a synergetic adsorption-photocatalytic process for efficiently removing cationic azo dyes from water, specifically crystal violet (CV), methylene blue (MB), and rhodamine B (RhB). The Cu-HBF, previously available only in single crystal form, is prepared here as a crystalline powder for the first time, using a low-cost and facile procedure, allowing its application as an adsorbent and also serving as a precursor for synthesizing well-structured copper oxide (MFL-CuO).
View Article and Find Full Text PDFPLoS One
September 2025
Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy.
Microfibers are pollutants of increasing concern, as they accumulate in aquatic environments and pose risks to living organisms. Once released, they undergo degradation processes that reduce their size and enhance their ability to interact with biological systems. Among these processes, photodegradation is a key driver, leading to fiber fragmentation and structural shrinkage.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
Department of Chemistry, University of Victoria, Victoria, BC V8W 2Y2, Canada.
The adsorption of amino acids on coinage metal surfaces is of interest for a range of biological applications. Central to advancing these applications is understanding the structure of the adsorbed molecules and the state they are present in. Cysteine, the focus of this work, has been studied extensively, both experimentally and theoretically.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Department of Chemical Engineering, National Taiwan University, Taipei 106319, Taiwan.
To address the increasingly limited water availability, using metal-organic frameworks (MOFs) to capture atmospheric water vapor as usable resources has emerged as a promising strategy. The adsorption characteristics of MOFs as well as their step pressure (i.e.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
September 2025
School of Chemical Engineering, State University of Campinas-Universidade Estadual de Campinas, Albert Einstein Av., 500, Campinas, SP, 13083-852, Brazil.
Bisphenol A (BPA) is a persistent organic pollutant with toxic effects on human health and ecosystems. In this study, the performance of MWCNT-OH functionalized with iron nanoparticles (MWCNT-OH@Fe) using sugarcane bagasse extract as a reducing agent (green synthesis) was evaluated for BPA adsorption. The kinetics are fast, between 10 and 20 min in the range of concentrations evaluated and the resistance to external film diffusion (external film mass transfer) identified as the rate-limiting step of the process.
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