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Fe, N-CQDs triggered the fabrication of alginate encapsulated g-CN hydrogel for efficient photocatalytic activation of PMS and antibiotic degradation.
Carbohydr Polym
March 2025
School of Environmental and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China. Electronic address:
Carbon dots (CDs) mediated g-CN (CN) is a promising visible-light-driven semiconductor in catalyzing peroxymonosulfate (PMS) for aqueous contaminants remediation. However, the poor dispersibility of powered catalyst and its challenging recyclability impede their broader application. Herein, we embedded FeN bridge within the g-CN framework and immobilized g-CN gel beads (CA/FNCCN) through a 3D cross-linking process with sodium alginate.
View Article and Find Full Text PDFNi-Co doped TiO catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight.
Environ Sci Pollut Res Int
January 2025
Materials and Process Development Laboratory, Department of Chemical Engineering, Birla Institute of Technology and Science, K. K. Birla Goa Campus, Pilani, Goa, 403726, India.
In the present study, combustion-synthesized TiO nanoparticles were wet impregnated with Ni, Co, and Ni-Co, respectively. The photocatalytic performance of synthesized catalysts was evaluated against Malachite Green dye. The synthesized materials were characterized for crystallite size, surface morphology, elemental composition, and band gap using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and ultra-violet diffused reflectance spectroscopy, respectively.
View Article and Find Full Text PDFEffect of Physiologically Relevant Dehydration on the Dielectric Properties of Ground Beef.
Bioelectromagnetics
January 2025
Department of Electrical and Software Engineering, University of Calgary, Calgary, Alberta, Canada.
Readily available animal tissue, such as ground beef, is a convenient material to represent the dielectric properties of biological tissue when validating microwave imaging and sensing hardware and techniques. The reliable use of these materials depends on the accurate characterization of their properties. In this work, the effect of physiologically relevant levels of dehydration on ex vivo tissue samples is quantified while controlling for variation within and between samples.
View Article and Find Full Text PDFUnveiling the photocatalytic and antimicrobial activities of star-shaped gold nanoparticles under visible spectrum.
Sci Rep
January 2025
School of Chemical engineering, Military Technical College, Cairo, Egypt.
This study reports on the facile development of star-shaped gold nanoparticles via seed-mediated growth protocol. Gold nanostars (AuNSTs) demonstrated average particle size of 48 nm using transmission electron microscopy (TEM). Chemical composition of AuNSTs was verifired using energy dispersive X-ray spectroscopy (EDX) mapping.
View Article and Find Full Text PDFModal Analysis with Asymptotic Strips Boundary Conditions of Skewed Helical Gratings on Dielectric Pipes as Cylindrical Metasurfaces for Multi-Beam Holographic Rod Antennas.
Sensors (Basel)
December 2024
Institute of Communications Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
A core dielectric cylindrical rod wrapped in a dielectric circular pipe whose outer surface is enclosed by a helical conducting strip grating that is skewed along the axial direction is herein analyzed using the asymptotic strip boundary conditions along with classical vector potential analysis. Targeted for use as a cylindrical holographic antenna, the resultant field solutions facilitate the aperture integration of the equivalent cylindrical surface currents to obtain the radiated far fields. As each rod section of a certain skew angle exhibits a distinct modal attribute; this topology allows for the distribution of the cylindrical surface impedance via the effective refractive index to be modulated, as in gradient-index (GRIN) materials.
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