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Spiny CoO@Hollow Carbon Spheres─Polyacrylonitrile/Carbon Black Fiber-Based Bifunctional Air Electrodes.
Langmuir
January 2025
College of Textile Science and Engineering, Jiangnan University, 1800 Lihu Road, 214122 Wuxi, P. R. China.
In the realm of zinc-air batteries, high bifunctional catalytic efficacy is intimately tied to the evaluation of catalysts. Consequently, the pursuit of proficient bifunctional catalysts that can efficiently catalyze both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) remains a paramount objective in this research area. In this study, the spiny cobalt tetroxide (CoO) encapsulated hollow carbon spheres (HCSs) are constructed by anchoring CoO onto HCS via hydrothermal or annealing treatment.
View Article and Find Full Text PDFNIR-Reflective Black Photonic Films Designed for Effective LiDAR Recognition.
ACS Appl Mater Interfaces
January 2025
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
Conventional dark-tone paints absorb both visible light and near-infrared (NIR) wavelengths, posing a challenge for light detection and ranging (LiDAR) recognition in autonomous driving. To overcome this issue, various chemical and structural coating materials have been explored to selectively reflect NIR. In this study, we newly propose colloidal photonic crystals with a stopband in the NIR range, fabricated through the spontaneous formation of crystalline arrays of silica particles dispersed in a photocurable resin, as a potential solution.
View Article and Find Full Text PDFInhibitory effects of cadmium and hydrophilic cadmium telluride quantum dots on the white rot fungus .
Heliyon
January 2025
Department of Microbiology (Biocenter 1, Viikinkaari 9), Faculty of Agriculture and Forestry, University of Helsinki, Finland.
The white rot fungus was investigated for its ability to decolorize the reactive textile dye Reactive Black 5 (RB5) that was co-exposed to CdCl and quantum dots (QDs) consisting of a CdTe core capped with two different hydrophilic organic ligands (NAC and MPA). Without co-exposure, completely decolorizes RB5 within 9 days. The highest inhibitory effect was found for soluble CdCl with an EC of 583 μg l, followed by MPA-QDs (10,628 μg l) and NAC-QDs (17,575 μg l).
View Article and Find Full Text PDFPhotocatalytic removal of textile wastewater-originated methylene blue and malachite green dyes using spent black tea extract-coated silver nanoparticles.
Sci Rep
January 2025
Department of Food and Nutrition Sciences, College of Agricultural and Food Sciences, King Faisal University, Al Ahsa, 31982, Saudi Arabia.
The spent black tea extract was utilized in order to synthesize the spent black tea silver nanoparticles (SBT-AgNPs). Various parameters were tested to yield the best production of SBT-AgNPs. The characterization was conducted by X-Ray diffraction, Scanning electron microscopy, Zeta potential and energy dispersive X-ray (EDX).
View Article and Find Full Text PDFMulti-Analytical and Non-Invasive Approach for Characterising Blackened Areas of Originally Blue Paints.
Molecules
December 2024
Dipartimento di Chimica, Università degli Studi di Torino, Via P.Giuria 7, 10125 Torino, Italy.
Azurite, a natural mineral pigment consisting of basic copper carbonate (2CuCO·Cu(OH)), is one of the Middle Ages' most common blue pigments. Why paintings originally coated with azurite appear blackened today remains debated. Using a non-invasive multi-analytical approach, the study analysed several unexpectedly black-appearing details (objects such as books or clothing such as veils, robes, or mantles) in Antoine de Lonhy's works.
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