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Investigation and evaluation of palygorskite microstructure following acid pretreatment and its potential use as an adsorbent for copper.
Sci Rep
January 2025
Department of Chemical Engineering, University of Technology, Baghdad, Iraq.
Palygorskite exhibits distinctive morphological and textural characteristics due to its fibrous and micropore nature. This research experimentally investigates the microstructure of palygorskite and how acid treatment changes the fibrous shape and ability to adsorb. Acetic and hydrochloric acid were used to study the effect of acid on palygorskite fibrous morphology.
View Article and Find Full Text PDFMechanistic Insights into the Corrosion Inhibition Performance of Eco-Friendly Nitrogen and Boron Co-Doped Carbon Dots for Mild Steel in a 15% HCl Solution.
Langmuir
January 2025
Department of Physics and Astronomy College of Science, King Saud University, P. O.Box 2455, Riyadh 11451, Saudi Arabia.
A novel and eco-friendly route to synthesize boron, nitrogen codoped carbon dots using aniline, citric acid, and boric acid as precursor materials has been used successfully to reduce mild steel corrosion. This report describes the detailed weight-loss experiments, electrochemical measurements, and surface morphology analysis conducted to explore the efficacy of B,N-CDs as a highly effective corrosion controller for mild steel (MS) protection in 15% hydrochloric acid (HCl). The findings specify that B,N-CDs significantly decreased the corrosion of MS and attained an inhibition capacity of up to 96.
View Article and Find Full Text PDFCost-effective evaluation of modified ochre soil and its combination with cationic polyacrylamide for municipal wastewater sludge conditioning.
Water Sci Technol
January 2025
Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
One of the most costly stages of activated sludge wastewater treatment plants is the treatment and dewatering of waste sludge. Chemical conditioning of sludge, as one of the most widespread methods to enhance sludge dewaterability, accounts for a significant portion of operational expenses due to the consumption of expensive polymeric compounds. This research aims to assess the cost-effectiveness of ochre soil, modified with hydrochloric acid, as an affordable mineral for conditioning waste sludge in an activated sludge system.
View Article and Find Full Text PDFAn evaporite sequence from ancient brine recorded in Bennu samples.
Nature
January 2025
Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
Evaporation or freezing of water-rich fluids with dilute concentrations of dissolved salts can produce brines, as observed in closed basins on Earth and detected by remote sensing on icy bodies in the outer Solar System. The mineralogical evolution of these brines is well understood in regard to terrestrial environments, but poorly constrained for extraterrestrial systems owing to a lack of direct sampling. Here we report the occurrence of salt minerals in samples of the asteroid (101955) Bennu returned by the OSIRIS-REx mission.
View Article and Find Full Text PDFPolycotton waste textile recycling by sequential hydrolysis and glycolysis.
Nat Commun
January 2025
Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.
As a result of the current high throughput of the fast fashion collections and the concomitant decrease in product lifetime, we are facing enormous amounts of textile waste. Since textiles are often a blend of multiple fibers (predominantly cotton and polyester) and contain various different components, proper waste management and recycling are challenging. Here, we describe a high-yield process for the sequential chemical recycling of cotton and polyester from mixed waste textiles.
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