
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 26, 2024
Language: Английский
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 26, 2024
Language: Английский
Emerging contaminants, Journal Year: 2024, Volume and Issue: 11(1), P. 100429 - 100429
Published: Oct. 29, 2024
Language: Английский
Citations
3Journal of Rare Earths, Journal Year: 2024, Volume and Issue: unknown
Published: June 1, 2024
Language: Английский
Citations
2Microorganisms, Journal Year: 2023, Volume and Issue: 11(8), P. 2009 - 2009
Published: Aug. 4, 2023
Dysprosium is one of the most critical rare earth elements for industry and technology. A comparative study was carried out to assess biosorption capacity cyanobacteria Spirulina platensis yeast Saccharomyces cerevisiae toward dysprosium ions. The effect experimental parameters such as pH, concentration, time contact, temperature on evaluated. Biomass before after analyzed using neutron activation analysis Fourier-transform infrared spectroscopy. For both biosorbents, process quick pH-dependent. maximum removal (50%) (68%) attained at pH 3.0 during a one-hour experiment. adsorption data biosorbents fitted well with Langmuir isotherm model, whereas kinetics followed pseudo-second-order Elovich models. 3.24 mg/g, that 5.84 mg/g. thermodynamic showed spontaneous process, exothermic endothermic platensis. Biological sorbents can be considered an eco-friendly alternative traditional technologies applied ion recovery from wastewater.
Language: Английский
Citations
4Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: Sept. 23, 2023
Abstract In this research, the possibility of using sustainable nano-MgO/Ca-alginate beads for efficient sorption some rare earth metal ions such as neodymium(III) and yttrium(III) from an aqueous acidic solution was explored. The adsorbent characterized before after Nd(III) Y(III) scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), energy dispersive X-ray analysis (EDX), diffraction (XRD) techniques. Batch parameters were investigated, contact time, initial ion concentration, dose (V/m). calculated experimental results showed that suitable selected conditions carried out 100 mg/L with nano MgO/Ca-alginate (contact time = 90 min, pH 2, V/m 0.05 L/g). maximum capacity 0.1 g found to be 7.85 mg/g 5.60 Y(III), respectively. desorption loaded achieved 1.0 M sulfamic acid 51.0% 44.2%, thermodynamic MgO/Ca-alginate/Nd/Y system show positive charge ΔH o confirmed endothermic nature process, ΔS (positive) indicates increase in reaction disordering, ΔG (negative) a spontaneous process. These kinetic indicate process on is performed by chemisorption
Language: Английский
Citations
4Microorganisms, Journal Year: 2024, Volume and Issue: 12(1), P. 122 - 122
Published: Jan. 7, 2024
Rare-earth elements are released into the aquatic environment as a result of their extensive use in industry and agriculture, they can be harmful for living organisms. The effects holmium(III), erbium(III), gadolinium(III) when added to growth medium concentrations ranging from 10 30 mg/L on accumulation ability biochemical composition Arthrospira platensis were studied. According results neutron activation analysis, uptake by cyanobacteria occurred dose-dependent manner. addition did not significantly affect amount biomass, whereas erbium(III) holmium(III) reduced it up 22% compared control. rare-earth content proteins, carbohydrates, phycobiliproteins, lipids, β carotene, chlorophyll evaluated. studied had different primary biomolecule content, suggesting that more toxic than Gd(III) platensis.
Language: Английский
Citations
1Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(39), P. 52118 - 52131
Published: Aug. 13, 2024
Language: Английский
Citations
0Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 26, 2024
Language: Английский
Citations
0