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High-temperature calcination modified red clay as an efficient adsorbent for phosphate removal from water.
Environ Res
December 2024
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil& Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China.
To develop an efficient and cost-effective adsorbent for phosphate removal from water bodies, this study utilized natural red clay (RC) as a carrier. The modified red clay (MRC) was prepared through three methods: acid modification, high-temperature calcination, and metal loading. The preparation conditions were optimized, and the adsorption effects on phosphate were compared across these different modifications.
View Article and Find Full Text PDFNanocomposite magnetic hydrogel based on κ-carrageenan and acrylic acid for the removal of Cd(II), Co(II), Cu(II), and Ni(II); Efficient adsorption enhanced by activated carbon and magnetic nanoparticles.
Int J Biol Macromol
December 2024
Department of Chemistry, Imam Khomeini International University, P.O. Box 288, Qazvin, Iran.
A novel nanocomposite magnetic hydrogel was synthesized based on κ-carrageenan, acrylic acid, and activated carbon as an absorbent for removing heavy metal ions from aqueous solution. FT-IR spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and vibration sample magnetometer (VSM) were employed to confirm the structure of the nanocomposite hydrogels. The effects of contact time, pH, particle size, temperature, and metal ion concentration on the metal ion adsorption were investigated.
View Article and Find Full Text PDFComparative photocatalytic performance of iron nanoparticles biosynthesized from aqueous extracts of potato, potato peels, and leaves.
Int J Biol Macromol
December 2024
Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India. Electronic address:
This study presents an eco-friendly, cost-effective approach for synthesizing highly efficient nanocatalysts with the help of organic waste. Iron nanoparticles (INPs) were synthesized from aqueous extracts of potato, potato peel, and potato leaf and were evaluated for their photocatalytic efficiency for the degradation of methylene blue dye. X-ray Diffraction (XRD) confirmed FeO nanoparticles cubic crystal structure with the smallest crystallite size (9.
View Article and Find Full Text PDFRadiocarbon Dating of Gallstones for Timeline of Formation, Dormancy Analysis, and Correlation with Chemical/Microbial Composition: A Pilot Study on Gallstone Geobiology.
J Gastrointest Surg
December 2024
Department of Radiation Oncology, Institute of Liver and Biliary Sciences, Delhi, India. Electronic address:
Background: India has a high incidence of gallstones, which can cause chronic inflammation and increase the risk of gallbladder cancer. Understanding the age and composition of gallstones can provide insights into their formation and growth. This study used ¹⁴C dating, FTIR, and metagenome analysis to explore the natural history, deposition rate, and microbial/chemical composition of gallstones.
View Article and Find Full Text PDFMorphology control and enhanced activity of (Cu-S)MOF@ZnS heterostructures for photocatalytic H production.
J Colloid Interface Sci
December 2024
Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan.
A novel metal-organic framework (MOF), (Cu-S)MOF, with a copper-sulfur planar structure was applied to photocatalytic H production application. (Cu-S)MOF@ZnS nanocomposite was synthesized using a microwave-assisted hydrothermal approach. The formation of (Cu-S)MOF and wurtzite ZnS in the composite nanoparticles was analyzed by X-ray diffraction (XRD), field emission-scanning electron microscopy (FESEM), and high-resolution transmission electron microscope (HRTEM).
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