Production and characterization of activated carbon from <i>Leucaena</i> plant wastes for removal of some toxic metal ions from waste solutions

Abdel-Galil, E. A.; Rizk, Hoda E.; Alizadeh, Mostafa

doi:10.1080/19443994.2015.1102768

Cited by 27 publications

(10 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For Cr(VI) ion removal, increasing the AC dosage increases the adsorption at the binging and then decreased, hence, it was more logical to use the smallest amount of AC (see Figure S5A ). This agrees with the study of Abdel-Galil et al, in which they found that over a certain amount of AC, the removal efficiencies remain nearly constant and there is no notable increase in the adsorption above 0.05 g/L AC dose [ 55 ]. For Pb(II) ions, there was no notable effect of varying the AC dosage (the removal was high in all cases (99.9% and above, see Figure S5B ).…”

Section: Resultssupporting

confidence: 92%

“…For example, using wood, as a source of AC [ 25 ], for the removal of Cr(VI) at similar pH used in our study, the efficiency falls between 36 and 72% (low adsorption at low concentration) while in this study the removal was higher and reaches 99%. Another example, using Leucaena plant waste [ 55 ], as a source of AC, for Pb(II) removal using a similar amount of AC used in this study and even higher agitation speed (400 RPM), the removal efficiency was 97%. In this study, the removal of Pb(II) was 99.99% even at lower agitation speed (120 rpm).…”

Section: Resultsmentioning

confidence: 95%

“…The FTIR spectra of the chemically activated and N-enriched AC are shown in Figure 4 . The spectrum of the adsorbents showed a band at 3408 cm −1 indicating the presence of hydroxyl groups and/or –NH [ 55 ]. The peaks in the region around 1557 cm −1 (present in all spectra) corresponds to the stretching vibration of carbonyl (C−O), carboxyl (C=O), and/or primary amine (–NH) [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Adsorption of Hexavalent Chromium and Divalent Lead Ions on the Nitrogen-Enriched Chitosan-Based Activated Carbon

2021

View full text Add to dashboard Cite

Optimizing the physicochemical properties of the chitosan-based activated carbon (Ch-ACs) can greatly enhance its performance toward heavy metal removal from contaminated water. Herein, Ch was converted into a high surface area (1556 m2/g) and porous (0.69 cm3/g) ACs with large content of nitrogen (~16 wt%) using K2CO3 activator and urea as nitrogen-enrichment agents. The prepared Ch-ACs were tested for the removal of Cr(VI) and Pb(II) at different pH, initial metal ions concentration, time, activated carbon dosage, and temperature. For Cr(VI), the best removal was at pH = 2, while for Pb(II) the best pH for its removal was in the range of 4–6. At 25 °C, the Temkin model gives the best fit for the adsorption of Cr(VI), while the Langmuir model was found to be better for Pb(II) ions. The kinetics of adsorption of both heavy metal ions were found to be well-fitted by a pseudo-second-order model. The findings show that the efficiency and the green properties (availability, recyclability, and cost effectiveness) of the developed adsorbent made it a good candidate for wastewaters treatment. As preliminary work, the prepared sorbent was also tested regarding the removal of heavy metals and other contaminations from real wastewater and the obtained results were found to be promising.

show abstract

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Adsorption of Hexavalent Chromium and Divalent Lead Ions on the Nitrogen-Enriched Chitosan-Based Activated Carbon

2021

View full text Add to dashboard Cite

show abstract

“…3, a very broad, intense peak is assigned to the surface hydroxyl stretching band between 3500-2000 cm - 1 15,20-22 . A prominent peak at 1637 cm -1 is due to H-O-H bending 15,20,23,24 . The peaks at 1550 cm -1 , 1176 cm -1 , and 709 cm -1 were assigned to metal-oxygen bonds 22,[25][26][27] .…”

Section: Resultsmentioning

confidence: 99%

Preparation, Characterization and Analytical Application of Tin (IV) Tungstoselenate - 1, 10 Phenanthroline

Laiq

Nabi

2021

Orient. J. Chem

View full text Add to dashboard Cite

Synthesis of a composite ion exchange material Tin (IV) tungstoselenate - 1, 10 phenanthroline has been achieved by mixing differentvolume ratios of the organic counterpart with the inorganic ion exchangertin (IV) tungstoselenate. Final sample, having 0.88mmoles of 1, 10 phenanthroline per gram of inorganic ion exchanger, was chosen for characterization, including ion exchange capacity, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The ion exchange capacity of Li+, Na+, Ca2+, Sr2+ metals was determined by using the synthesized material. The adsorption behavior of Al3+,Co2+,Ni2+,Cu2+,Cd2+,Pb2+ in various solvent systems have been studied. Based on distribution Coefficient (Kd) values, few analytically necessary separations of metal ions from the synthetic mixture have been achieved on the column of the composite ion exchanger.

show abstract

“…and grain yield of the following cereal crops (Dakora et al, 1987;Angus et al, 2014;Kirkegaard and Ryan, 2014;Abdel-Galil et al, 2016). The inclusion of symbiotic legumes in cropping systems can therefore help to reduce increased use of N fertilizers in global agriculture, and thus decrease N 2 O gas emissions and global warming, thereby mitigating climate change (Dudeja and Duhan, 2005;Sengupta et al, 2015;Stewart, 2015).…”

Section: Legume N Contribution and Water-use Efficiencymentioning

confidence: 99%

Rotation Benefits From N2-Fixing Grain Legumes to Cereals: From Increases in Seed Yield and Quality to Greater Household Cash-Income by a Following Maize Crop

Lengwati

Mathews

Dakora

2020

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

We investigated Bambara groundnut, groundnut, mung bean, cowpea, and black gram for use as biofertilizers in cropping systems. The 15 N natural abundance technique was used to measure N 2 fixation in this study. The percent of N derived from fixation by mung bean (Vigna radiata L. Wilczek), Bambara groundnut (Vigna subterranea L. Verdc.), cowpea (Vigna unguiculata L. Walp.), black gram (Vigna mungo L.), and groundnut (Arachis hypogaea L) was 98, 83, 79, 66, and 45% respectively. Nitrogen contribution from these legumes was 83, 67, 39, 36, and 32 kg.ha −1 respectively for Bambara groundnut, groundnut, mung bean, black gram, and cowpea. Maize grain yield without N fertilizer was 2,449, 2,291, 2,204, 2,046, and 1,671 kg.ha −1 , respectively, for maize following groundnut, Bambara groundnut, cowpea, mung bean, black gram, and maize. Grain yield increase of maize after legumes without N fertilizer was 47, 46, 37, 32, and 22%, respectively, for groundnut, Bambara groundnut, cowpea, mung bean, and black gram. Supplying 0 to 60 kg N ha −1 to maize plants increased shoot DM from 3,264 to 4,279 kg.ha −1 , grain yield from 2,184 to 3,586 kg.ha −1 , and whole-plant DM from 5,448 to 7,865 kg.ha −1 , which represented a 31, 64, and 44% increase with N fertilizer supply from 0 to 60 kg N ha −1. Symbiotic N benefit of preceding legumes to maize without N fertilizer was 20-40 kg N. ha −1 in fertilizer equivalents. The preceding legumes increased maize grain concentrations of P, Ca, S, Fe, Mn, and Zn in zero-N plots relative to maize after maize. There was a 225, 222, 154, 149, and 108% increase in marginal returns of maize after groundnut, Bambara groundnut, cowpea, mung bean, and black gram, respectively, without N fertilizer.

show abstract

Production and characterization of activated carbon from Leucaena plant wastes for removal of some toxic metal ions from waste solutions

Cited by 27 publications

References 51 publications

Adsorption of Hexavalent Chromium and Divalent Lead Ions on the Nitrogen-Enriched Chitosan-Based Activated Carbon

Adsorption of Hexavalent Chromium and Divalent Lead Ions on the Nitrogen-Enriched Chitosan-Based Activated Carbon

Preparation, Characterization and Analytical Application of Tin (IV) Tungstoselenate - 1, 10 Phenanthroline

Rotation Benefits From N2-Fixing Grain Legumes to Cereals: From Increases in Seed Yield and Quality to Greater Household Cash-Income by a Following Maize Crop

Contact Info

Product

Resources

About