Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

Amer, Mohammad W.; Ahmad, Rafat; Awwad, Akl M.

doi:10.1007/s40090-014-0030-8

Cited by 53 publications

(39 citation statements)

References 17 publications

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“…It can be seen that the pseudo second order kinetics gave a better fit for the two adsorbents, which is similar to the reports of Amer et al (2015) and Ajayi-Banji et al (2016) for the biosorption of contaminated wastewater with coconut shell husk. Figures 7a and 7b give the Scanning Electron Microscope (SEM) images of banana peel and coconut shell before and after adsorption at 671 microns (×400 magnification), respectively.…”

Section: Kinetic Studiessupporting

confidence: 87%

“…AT is the Temkin isotherm equilibrium binding constant (L/mg); B is the Temkin constant related to heat of adsorption; bT is the Temkin isotherm constant (J/mol); Ε is the DubininRadushkevich isotherm parameter; Kad is the Dubinin-Radushkevich isotherm constant (mol 2 /kJ 2 ); qs is the theoretical isotherm saturation capacity (mg/g); R is the Universal Gas Constant (8.314 J/mol K); R 2 is the Coefficient of Regression; and T is Temperature (K). From Table 4, it can be seen that the Langmuir isotherm for banana peel gave the best fit for the adsorption operation, similar to the observations of Amer et al, (2015). Favorable adsorption was achieved as a result of the fact that 0<RL< 1.…”

Section: Adsorption Isothermssupporting

confidence: 74%

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Adsorption of Nickel(II) Ions from Aqueous Solution using Banana Peel and Coconut Shell

Olufemi¹,

Eniodunmo²

2018

IJTech

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This work investigates the comparative adsorptive removal of Ni (II) ions from aqueous solution using coconut shell and banana peel. Optimum conditions for adsorption were determined by experimental design, while Analysis of Variance (ANOVA) and BonferroniHolm Posthoc significance statistical tests on operational parameters were also conducted. The parametric effect of adsorbate dose, adsorbent dose, pH, contact time, particle size and temperature were varied individually, and their effect on the percentage of Ni (II) ion removal was estimated. The maximum percentage removal was achieved at a pH of 8.0 by both adsorbents. The optimum conditions obtained for both adsorbents were 4.5 g adsorbent dose, 30 min contact time and 25 o C for coconut shell, and 4.5 g adsorbent dose, 120 mins and 25 o C for banana peel. The Langmuir isotherm best described the adsorption, with correlation coefficient (R 2 ) values of 0.9821 and 0.9744 for banana peel and coconut shell respectively. The mean free energy from the Dubinin-Radushkevich isotherm suggested chemisorption, and the adsorption mechanism was found to fit the second order.

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Section: Kinetic Studiessupporting

confidence: 87%

Section: Adsorption Isothermssupporting

confidence: 74%

Adsorption of Nickel(II) Ions from Aqueous Solution using Banana Peel and Coconut Shell

Olufemi¹,

Eniodunmo²

2018

IJTech

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“…1), which corresponds to the pattern reported by Amer et al (2015). Cu 2+ had the highest absorption percentage of the heavy metals included in this study, but the biosorbent was able to bind each heavy metal, although the characteristics and stability varied.…”

Section: Absorption Of Single Heavy Metalssupporting

confidence: 86%

Reducing hazardous heavy metal ions using mangium bark waste

Khabibi

Syafii

Sari

2016

Environ Sci Pollut Res

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The objective of this study was to evaluate the characteristics of mangium bark and its biosorbent ability to reduce heavy metal ions in standard solutions and wastewater and to assess changes in bark characteristics after heavy metal absorption. The experiments were conducted to determine heavy metal absorption from solutions of heavy metals alone and in mixtures as well as from wastewater. The results show that mangium bark can absorb heavy metals. Absorption percentages and capacities from single heavy metal solutions showed that Cu(2+) > Ni(2+) > Pb(2+) > Hg(2+), while those from mixture solutions showed that Hg(2+) > Cu(2+) > Pb(2+) > Ni(2+). Wastewater from gold mining only contained Cu, with an absorption percentage and capacity of 42.87 % and 0.75 mg/g, respectively. The highest absorption percentage and capacity of 92.77 % and 5.18 mg/g, respectively, were found for Hg(2+) in a mixture solution and Cu(2+) in single-metal solution. The Cu(2+) absorption process in a single-metal solution changed the biosorbent characteristics of the mangium bark, yielding a decreased crystalline fraction; changed transmittance on hydroxyl, carboxyl, and carbonyl groups; and increased the presence of Cu. In conclusion, mangium bark biosorbent can reduce hazardous heavy metal ions in both standard solutions and wastewater.

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“…Various parts of plants are commonly used as biomass adsorbent for Cr(VI) adsorption from drinking water and wastewater. These include Syzygium jambolanum nut [18], Sophora japonica pods powder [19], rice bran [20], neem bark, neem leaves, rice straw and rice husk [21], gooseberry seeds [22], husk of Bengal gram [23], Cupressus lusitanica Bark [24] and Azadirachta indica [25]. …”

Section: Introductionmentioning

confidence: 99%

Kinetic, isotherm and thermodynamic studies on biosorption of chromium(VI) by using activated carbon from leaves of Ficus nitida

Ali

Alrafai

2016

Chemistry Central Journal

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BackgroundKinetics, thermodynamics and equilibrium of the removal of chromium(VI) ions from aqueous solutions by using chemically activated leaves of Ficus nitida were investigated. Adsorption runs were performed as a function of pH, mass of biosorbent, contact time, initial concentration of chromium(VI) ions and temperature.ResultsThe optimum conditions for maximum removal of chromium(VI) ion from aqueous solutions (about 99 %) were found to be 0.80 g of chemically activated leaves of F. nitida, 25 min, 50.0 mg/L of initial concentration of chromium(VI). Values of thermodynamic activation parameters proved that the biosorption process is spontaneous and endothermic. Results were analyzed by using Langmuir, Freundlich and Temkin models.ConclusionsResults of the study showed that the chemically activated leaves of F. nitida can be used as low cost, ecofriendly and effective sorbent for the removal of chromium(VI) from aqueous solutions.Graphical abstractFicus nitida is an efficient bio-sorbent used for removal of Cr(VI) ion

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Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

Cited by 53 publications

References 17 publications

Adsorption of Nickel(II) Ions from Aqueous Solution using Banana Peel and Coconut Shell

Adsorption of Nickel(II) Ions from Aqueous Solution using Banana Peel and Coconut Shell

Reducing hazardous heavy metal ions using mangium bark waste

Kinetic, isotherm and thermodynamic studies on biosorption of chromium(VI) by using activated carbon from leaves of Ficus nitida

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