MIL-101(Cr)@TiO core-shell composite material was synthesized via the hydrothermal method, where MIL-101(Cr) served as the core and TiO acted as the shell. SEM results revealed that the metal-organic framework core effectively prevented the aggregation of TiO nanoparticles and facilitated their dispersion. Characterization techniques such as XRD, XPS, and TGA were utilized to confirm the successful loading of TiO onto MIL-101(Cr) and its excellent thermal stability. MIL-101(Cr)@TiO was employed in photocatalytic degradation of dye pollutants and vehicle exhaust, and the potential degradation mechanisms were investigated in detail. The results showed that MIL-101(Cr)@TiO exhibited excellent photocatalytic degradation performance towards dye pollutants, with degradation efficiencies of 91.7% and 67.8% achieved for MB and RhB, respectively, under visible light irradiation for 90 min. Furthermore, the photocatalytic degradation of automobile exhaust revealed that the MIL-101(Cr)@TiO composite material also exhibited degradation effects on NO, CO, and HC. The degradation efficiency for NO reached 24.2%, indicating its broader applicability.
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http://dx.doi.org/10.3390/molecules28145530 | DOI Listing |
Molecules
December 2024
Department of Physical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland.
This work aimed to investigate the adsorption of organic compounds (4-nitroaniline and 4-chlorophenoxyacetic acid) on activated carbon in the presence of selected dyes (uranine and Acid Red 88) and surfactants (sodium dodecyl sulfate and hexadecyltrimethylammonium bromide). The adsorbent, i.e.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Chemical Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar 144008, Punjab, India.
Mikrochim Acta
January 2025
Department of Chemistry and Material Engineering, Lyuliang University, Lyuliang, 033000, P. R. China.
Innovative double-emission carbon dots (DE-CDs) were synthesized via a one-step hydrothermal method using fennel and m-phenylenediamine (m-PD) as precursors. These DE-CDs exhibited dual emission wavelengths at 432 and 515 nm under different excitations, making them highly versatile for fluorescence-based applications. The fluorescence of the DE-CDs was efficiently quenched by tetracycline (TC) through the inner filter effect (IFE), allowing for the construction of a sensitive dual-response fluorescent sensor.
View Article and Find Full Text PDFInt J Phytoremediation
January 2025
Water Management and Treatment Technologies Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
This study introduces a sustainable biological approach for synthesizing silver nanoparticles (AgNPs) using Conocarpus seeds, aimed at improving the adsorption and photocatalytic degradation of methylene blue (MB) in wastewater treatment. The photocatalytic efficiency of AgNPs, synthesized under varying concentrations of silver nitrate (AgNO) and pH levels, was evaluated, together with the effectiveness of a photocatalytic reactor. The synthesized samples were characterized using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared (FT-IR) spectroscopy, and atomic force microscopy (AFM).
View Article and Find Full Text PDFLuminescence
January 2025
Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
Herein, highly fluorescent sulfur and nitrogen co-doped carbon dots (N, S-CDs) had been employed as a fluorescent probe to analyze Cu in drinking water. The biogenic creatinine is known to form a stable complex with Cu; hence, it was rationally selected as a bioinspired nitrogen substrate for the first time to enhance N, S-CDs selectivity towards Cu. Moreover, the literature was surveyed to guide the selection of sulfur and carbon sources to optimize N, S-CDs quantum yield (QY), so thiourea and disodium edetate are co-carbonized with biogenic creatinine at 270°C for 40 min and characterized using different techniques.
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