Evaluation of Biomass, Indian Jujuba Seed (Ijs) for Removal of Congo Red

Sivaramakrishna, L.; Reddy, M. Sivasankar; Jagadeesh, M.; Zuhairi, W. Y. Wan; Taha, Mohd Raihan; Reddy, A. Varada

doi:10.3844/ajessp.2014.374.382

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…To find a suitable model for design purposes, the isotherm data analysis includes fitting to different isotherm models. This step has been achieved by applying the linear forms of the Langmuir (Equation 1) and Freundlich (Equation 2) adsorption isotherm models (Sivaramakrishna et al, 2014). The applicability of the isotherm equations to describe the adsorption process was judged based on the correlation coefficients R 2 and the maximum value of adsorption:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…The pH of a medium will control the magnitude of the electrostatic charges imparted by the ionized dye molecules. Both the adsorbent and the adsorbate may contain functional groups that can be protonated or deprotonated to produce different surface charges at different pH, resulting in electrostatic attraction or repulsion between the charged adsorbates and adsorbents (Sivaramakrishna et al, 2014). The lower adsorption of CR in alkaline media may be due to the presence of excess OH-ions competing with dye anions for the adsorption sites.…”

Section: Effect Of Phmentioning

confidence: 99%

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Removal of Congo Red Dye From Aqueous Solution by Date Palm Leaf Base

Al-Senani¹

2014

American Journal of Applied Sciences

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Removal of dyes from wastewater is important for industry and environmental protection. The adsorption technique, using biomass is attractive method for environmental and economical reasons. This study studies removal of Congo Red dye (CR) from aqueous solutions by adsorption using date palm Leaf Base (LB). The adsorption of congo red dye CR onto LB has been examined in aqueous solution by considering the influence of temperature up to 60°C and pH on the percentage removal of CR. The results showed that the percentage removal of CR increased with increasing temperature and decreased with increasing pH. The Langmuir and Freundlich models have been applied to describe the equilibrium data and the thermodynamic parameters, Gibbs free energy ∆G°, enthalpy change ∆H° and entropy ∆S°, have been determined. The negative value of ∆H suggests that adsorption of CR by the date palm leaf base is exothermic. The positive values of ∆G° at all studied temperatures indicate that CR adsorption is a unspontaneous process. LB is a promising adsorbent for the removal of CR from aqueous solution over a range of concentrations.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Effect Of Phmentioning

confidence: 99%

Removal of Congo Red Dye From Aqueous Solution by Date Palm Leaf Base

Al-Senani¹

2014

American Journal of Applied Sciences

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“…Others studies just cite the popular name of the seed known as “jujube or jujuba fruit” or “jujube seed” [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ], a food commonly present and consumed in the Mediterranean region [ 18 ]. From this compilation, the seeds and their derivatives (husks and pits) are the most investigated parts, and then the leaves, branches and trunk bark.…”

Section: Introductionmentioning

confidence: 99%

Pb(II) Ion Removal Potential in Chemically Modified Ziziphus joazeiro Barks

Santos

Costa²,

Menezes

et al. 2022

IJERPH

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In this study, five types of modified Ziziphus joazeiro barks were investigated for the removal of Pb(II) ions from aqueous solutions. The samples tested were natural barks, natural powder, washed with water, ethanol at 80% (EE) and 0.5 N NaOH. Batch kinetics experiments were performed under the conditions: 24–25 °C, pH 5.5–5.8, 102 mg·L−1 Pb(NO3)2, 100 rpm and 0.1 g of adsorbent, and analyses of pHpzc and Fourier transform infrared spectroscopy. All adsorbents tested showed potential to remove Pb(II) ions, but the adsorbent washed by 0.5 N NaOH obtained the highest experimental performance (25.5 mg·g−1 at 30 min), while the EE had the least performance (20.4 mg·g−1 at 60 min), and maximum removals of 99.9%. The kinetic models pointed to a probable chemisorption due to the best fit of pseudo-second order and Elovich, and Boyd’s model, suggesting that intraparticle diffusion limits the adsorption until the initial minutes of contact. The Langmuir isotherm fitted better to the experimental data for the NaOH adsorbent, with maximum adsorption capacity equal to 62.5 mg·g−1, although the Temkin model partially fitted, both suggesting the occurrence of chemisorption. The adsorption process is reversible (>81% at 20 min) and hence the adsorbents can be recycled and the Pb(II) ions recovered.

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“…Low-cost agricultural and forest materials and products have been used by researchers as adsorbents. Some of these include cattail root [ 4 ], spent brewery grains [ 5 ], bagasse pith [ 8 ], jute stick powder [ 16 ], hazelnut shells [ 7 , 17 ], pecan nut shell [ 18 ], sugarcane bagasse [ 19 ], guava ( Psidium guajava ) leaf powder [ 20 ], jujuba seeds [ 21 ], jackfruit peel [ 22 ], orange peel [ 23 ], soy meal hull [ 24 ], peanut husk [ 25 ], pine cone powder [ 26 ], aleppo pine [ 27 ], gulmohar [ 28 ], sugar beet pulp [ 29 ], pine cone biomass of Pinus radiata [ 30 ], pine cone [ 31 ], cashew nut [ 32 ], oak sawdust [ 33 ], Pinus sylvestris [ 34 ], Capsicum annuum [ 35 ], princess tree leaf [ 36 ], Potamogeton crispus [ 37 ], and peanut husk [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Indian Jujuba Seed Powder as an Eco-Friendly and a Low-Cost Biosorbent for Removal of Acid Blue 25 from Aqueous Solution

Krishna

Reddy

Zuhairi

et al. 2014

The Scientific World Journal

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Indian jujuba seed powder (IJSP) has been investigated as a low-cost and an eco-friendly biosorbent, prepared for the removal of Acid Blue 25 (AB25) from aqueous solution. The prepared biomaterial was characterized by using FTIR and scanning electron microscopic studies. The effect of operation variables, such as IJSP dosage, contact time, concentration, pH, and temperature on the removal of AB25 was investigated, using batch biosorption technique. Removal efficiency increased with increase of IJSP dosage but decreased with increase of temperature. The equilibrium data were analyzed by the Langmuir and the Freundlich isotherm models. The data fitted well with the Langmuir model with a maximum biosorption capacity of 54.95 mg g−1. The pseudo-second-order kinetics was the best for the biosorption of AB25 by IJSP, with good correlation. Thermodynamic parameters such as standard free energy change (ΔG 0), standard enthalpy changes (ΔH 0), and standard entropy changes (ΔS 0) were analyzed. The removal of AB25 from aqueous solution by IJSP was a spontaneous and exothermic adsorption process. The results suggest that IJSP is a potential low-cost and an eco-friendly biosorbent for the AB25 removal from synthetic AB25 wastewater.

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Evaluation of Biomass, Indian Jujuba Seed (Ijs) for Removal of Congo Red

Cited by 8 publications

References 15 publications

Removal of Congo Red Dye From Aqueous Solution by Date Palm Leaf Base

Removal of Congo Red Dye From Aqueous Solution by Date Palm Leaf Base

Pb(II) Ion Removal Potential in Chemically Modified Ziziphus joazeiro Barks

Indian Jujuba Seed Powder as an Eco-Friendly and a Low-Cost Biosorbent for Removal of Acid Blue 25 from Aqueous Solution

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