Kinetic Study of Utilizing Groundnut Shell as an Adsorbent in Removing Chromium and Nickel from Dye Effluent

Idris, Salah Ali Mahgoub; Iyaka, Y. A.; Dauda, B. E. N.; Ndamitso, M. M.; Umar, Muhammad

doi:10.9734/acsj/2012/908

Cited by 44 publications

(20 citation statements)

References 25 publications

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“…At the same time, the R 2 value(R= 0,934) of the pseudo-first-order cannot be neglected. It is sufficiently close to unity indicating that chemisorption and physisorption takes place concomitantly [21]. This conclusion is consistent to the results of isotherms and IR obtained above.…”

Section: Pseudo-second Order Modelsupporting

confidence: 91%

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Adsorption Study of the Removal of Copper (II) Ions using Activated Carbon Based Canarium Schweinfurthii Shells Impregnated with ZnCl2

Maguie

Nsami

Kouotou

et al. 2017

IRA-JAS

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<p>The adsorption of Cu2+ions on activated carbon based canarium schweinfurthii impregnated with ZnCl2 was studied. The shells of canarium schweinfurthii were impregnated with ZnCl2 at varying ZnCl2 concentrations, temperature, residence time while keeping the heating rate fixed at 10 °C / min and the ratio of impregnation of 1:1. The activated carbon with the highest surface area in term of iodine number of 860,817 mg/g, the highest methylene blue of 741,6 mg/g and 74,66 % of yield of carbon was obtained at 650 °C, 60 % ZnCl 2 and 30min. From the batch adsorption studies, the equilibrium time was found to be 40 min. Analysis of equilibrium isotherm models revealed a good correlation of the experimental data with the Tempkin (R 2 = 0.909) model. This confirms a high affinity of the activated carbon for Cu 2+ ions on the heterogeneous surface. The value of energy obtained from the Tempkin model was 60,606 J/mol and the presence of pics between 487 cm-1 to 871 cm-1 indicating that physisorption and chemisorption were taking place during this sorption. The pseudo-second order kinetics(R 2 = 0.999) governs the adsorption of Cu2+ions on this activated carbon.</p>

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Section: Pseudo-second Order Modelsupporting

confidence: 91%

“…The quantity adsorbed seems to decrease with an increase in the adsorbent dose. This may be due to the aggregation on the adsorption sites as the amount of adsorbent increase [19,20,21,22]. The maximum quantity of Cu 2+ ions adsorbed at these conditions was 88,4 mg.g -1 with 0.025g of adsorbent.…”

Section: Effect Of the Adsorbent Dosementioning

confidence: 99%

Adsorption Study of the Removal of Copper (II) Ions using Activated Carbon Based Canarium Schweinfurthii Shells Impregnated with ZnCl2

Maguie

Nsami

Kouotou

et al. 2017

IRA-JAS

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“…In physical or thermal activation, the pyrolyzed carbon is exposed to an oxidizing atmosphere (such as CO 2 , steam or a mixture of both) in the temperature range of 600-1200°C and the porosity is developed by partial etching of the carbon. On the other hand, in chemical activation the carbon precursor is mixed with some chemicals such as NaOH [39], KOH [40][41][42][43][44][45][46][47][48], ZnCl 2 [5,[49][50][51], H 3 PO 4 [52][53][54] and H 2 SO 4 [3,55], and then carbonization and activation are accomplished simultaneously at a slightly lower temperature ranged within 300-950°C. Of the activating agents, KOH is the most promising because it can produce nanostructured porous carbons with higher yields at lower temperature, and produce materials with ultrahigh specific surface area up to 3000 m 2 g −1 with a well-defined pore size distribution.…”

Section: Synthesis Of Nanostructured Porous Carbons From Biomassmentioning

confidence: 99%

“…It has many forms or allotropes, which are widely used in many fields. Among them, porous carbon has been well developed and extensively utilized in modern industrial society due to its porous microstructure with immense surface area [2][3][4], high porosity along with good physiochemical stability [5,6], large adsorption capacity [7] and excellent reactivity [8][9][10]. However, the fabrication of such porous carbon faces some challenges as it is a complex and expensive synthesis process, involving high temperature and non-renewable precursors consequently limiting its commercial applications.…”

Section: Introductionmentioning

confidence: 99%

Biomass-derived nanostructured porous carbons for lithium-sulfur batteries

et al. 2016

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Biomass has been utilized as an energy source for thousands of years typically in the form of wood and charcoal. Technological advances create new methodologies to extract energy and chemicals from biomass. The biomass-derived nanostructured porous carbons (BDNPCs) are the most promising sulfur hosts and interlayers in rechargeable lithium-sulfur (Li-S) batteries. In this article, a comprehensive review is provided in the synthesis of nanostructured porous carbon materials for high-performance rechargeable Li-S batteries by using biomass. The performances of the Li-S batteries dependent on the porous structures (micro, meso and hierarchical) from BDNPCs are discussed, which can provide an in-depth understanding and guide rational design of high-performance cathode materials by using low-cost, sustainable and natural bio-precursors. Furthermore, the current existing challenges and the future research directions for enhancing the performance of Li-S batteries by using natural biomass materials are also addressed.

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“…These are (i) bulk diffusion (ii) external mass transfer (film diffusion) (iii) chemical reaction (chemisorption) and (iv) inter-particle diffusion. These processes can act in series or parallel to account for the surface transport of a metal into an adsorbent [27]. The pseudo first-order and pseudo-second order kinetic models, and the Elovich model were enlisted to assess the nickel (II) adsorption mode (Figs.…”

Section: Kinetic Modeling Of Ni (Ii) Adsorptionmentioning

confidence: 99%

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

Doungmo

Kamgaing²,

Temgoua³

et al. 2016

IJBAS

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In this study, sorption properties of a synthesized anionic clay were enhanced by the intercalation of oxalate ions in its interlayer space. The pristine and modified clay materials were characterized by X-ray diffraction, Fourier transform infrared spectroscopy and thermal analysis. These techniques confirmed the presence of oxalate ions in the interlayer space of the clay. The intercalated clay was then used as a matrix for the sorption in batch mode of nickel ions in aqueous solution. The influence of a number of parameters such as contact time, pH, initial concentration of the analyte and adsorbent dosage were studied. The maximum adsorption of nickel was obtained at pH 6, that is, about 90% Ni 2+ removal. The adsorbent/adsorbate equilibrium follows a pseudo-second order kinetics and best matches the Langmuir model. The modified clay was shown to be efficient matrix for the sorption of nickel ions.

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Kinetic Study of Utilizing Groundnut Shell as an Adsorbent in Removing Chromium and Nickel from Dye Effluent

Abstract: Aims:To determine the adsorption of nickel and chromium in dye effluents using activated carbon prepared from groundnut shell and to determine the adsorption capacity at different contact time. Study Design: Adsorption capacity of the adsorbent.

Cited by 44 publications

References 25 publications

Adsorption Study of the Removal of Copper (II) Ions using Activated Carbon Based Canarium Schweinfurthii Shells Impregnated with ZnCl2

Adsorption Study of the Removal of Copper (II) Ions using Activated Carbon Based Canarium Schweinfurthii Shells Impregnated with ZnCl2

Biomass-derived nanostructured porous carbons for lithium-sulfur batteries

Intercalation of oxalate ions in the interlayer space of a layered double hydroxide for nickel ions adsorption

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