Using the method of dynamic factors for assessing the transfer of chemical elements from soil to plants from various perspectives
In: Environmental science and pollution research: ESPR, Band 26, Heft 33, S. 34184-34196
ISSN: 1614-7499
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In: Environmental science and pollution research: ESPR, Band 26, Heft 33, S. 34184-34196
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 25, Heft 6, S. 5254-5268
ISSN: 1614-7499
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 81-126
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 127-148
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 249-301
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 29-80
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 1-27
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 185-248
In: The Sustainable Role of the Tree in Environmental Protection Technologies, S. 149-184
In: Environmental science and pollution research: ESPR, Band 12, Heft 5, S. 297-301
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 21, Heft 1, S. 299-313
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 27, Heft 26, S. 32874-32887
ISSN: 1614-7499
AbstractIn this study, different types of magnetic biochar nanocomposites were synthesized using the co-precipitation method. Two biochar materials, namely, sewage sludge biochar and woodchips biochar, were prepared at two different temperatures, viz., 450 and 700 °C. These biochars were further modified with magnetic nanoparticles (Fe3O4). The modified biochar nanocomposites were characterized using field emission–scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET), SQUID analysis, X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FTIR). The potential of prepared adsorbents was examined for the removal of hexavalent chromium (Cr(VI)) and Acid orange 7 (AO7) dye from water as a function of various parameters, namely, contact time, pH of solution, amount of adsorbents, and initial concentrations of adsorbates. Various kinetic and isotherm models were tested to discuss and interpret the adsorption mechanisms. The maximum adsorption capacities of modified biochars were found as 80.96 and 110.27 mg g-1for Cr(VI) and AO7, respectively. Magnetic biochars showed high pollutant removal efficiency after 5 cycles of adsorption/desorption. The results of this study revealed that the prepared adsorbents can be successfully used for multiple cycles to remove Cr(VI) and AO7 from water.