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Removal of Cr(VI) from aqueous solutions by activated carbon and its composite with PWO: A spectroscopic study to reveal adsorption mechanism.
Heliyon
January 2025
Nuclear Chemistry Division, Department of Chemistry, Atomic Energy Commission, P. O. Box: 9061, Damascus, Syrian Arab Republic.
Molecular scale information is needed to understand ions coordination to mineral surfaces and consequently to accelerate the design of improved adsorbents. The present work reports on the use of two-dimensional correlation Fourier Transform infra-red spectroscopy (2D-COS-FTIR) and hetero 2D-COS-FTIR- X-ray diffraction (XRD) to probe the mechanism of Cr(VI) removal from aqueous solutions by activated carbon (AC) and its composite with PWO (AC-composite). The adsorption data at an initial Cr(VI) concentration of 320 mg L (320 ppm) revealed maximum adsorption capacities of 65 mg g for AC and 73 mg g for AC-composite, corresponding to removal percentages of 83 % and 94 %, respectively.
View Article and Find Full Text PDFThe administration route of indigestible gut permeability markers modulates urinary marker recovery in calves.
JDS Commun
January 2025
Trouw Nutrition Research and Development, 3800 AG, Amersfoort, the Netherlands.
Indigestible gut permeability markers are used to assess gut integrity and can be administered to calves via a milk meal (MM) or orally pulsed (OP). This study investigated how marker administration route (ADM_R) affects the estimation of gut permeability in relation to milk replacer (MR) fat inclusion. Thirty-two newborn Holstein calves were blocked based on their arrival sequence at the facility.
View Article and Find Full Text PDFAnalysis of Heavy Metal Accumulation in Ulva rigida and its Effects on Seed Germination of Pennisetum glaucum.
ChemistryOpen
January 2025
Department of Chemical Oceanography, Cochin University of Science and Technology, Kochi, Kerala, India.
The alga contains salt and heavy metals that are accumulated in algae poses a significant challenge to the safe use of algae in soil fertilization and other applications. This study examines the relevance of algal biomass as an environmentally friendly fertilizer, thereby contributing to sustainable coastal management practices. In this study, the hot and cold extraction method were done to obtain the Ulva rigida extract.
View Article and Find Full Text PDFMonitoring and Assessment of Heavy Metal Concentrations in Two Black Fish Species, Capoeta saadii (Heckel, 1847) and Capoeta trutta (Heckel, 1843), in Western Iran.
Biol Trace Elem Res
January 2025
Department of Biology, Faculty of Science, Arak University, Arak, 384817758, Iran.
Contamination of aquatic ecosystems with heavy metals poses a significant global issue due to its hazardous effects and persistent accumulation in living organisms. This study analyzed 51 fish samples from two species of Black Fish, Capoeta saadii and Capoeta trutta, collected from Iran's Khorramroud River during the summer and fall of 2022 to assess heavy metal accumulation in their gill, liver, and muscle tissues. After biometry, the studied tissues of each fish were isolated to measure the concentration of heavy metals (cadmium (Cd), zinc (Zn), chromium (Cr), lead (Pb), copper (Cu), and nickel (Ni)).
View Article and Find Full Text PDFElectromagnetism and thermostability of CrCsynthesised with high-temperature and high-pressure quenching method.
J Phys Condens Matter
January 2025
Institute of High Pressure Physics, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, People's Republic of China, Ningbo, Zhejiang, 315211, CHINA.
The interactions between the carbon skeleton and the metal atoms of a binary transition metal carbide (BTMC) are particular interest for industrial applications with openning physics and chemitry questions, especially in magnetoelectric (ME) functional materials and cemented carbides. Chromium and carbon BTMCs are a series of intermetallic compounds with typical chemical formulas and sharepolycrystalline powder c somehromium special characteristics.and carbon as precursors, In this paper,and synthesized s we usedingle-phase bluk Cr7C3 (orthorhombic, with space group: Pnma) with high density and good crystallinity by means of high-temperature and high-pressure quenching method (HTHPQM).
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