Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (&lt;i&gt;Newbouldia laevis&lt;/i&gt;) bark

Ajaelu, Chijioke John; Nwosu, Vivian; Ibironke, Lara; Adeleye, Adebayo

doi:10.4314/jasem.v21i7.18

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…The calculated values of ∆S , ∆H and ∆G are vital thermodynamic parameters in the adsorption process. The intercept and slope of the Van't Hoff plot of ln k against 1/T , as shown in Figure 12, yielded the values of ∆S , ∆H, which were consistent [8]. Table 5 presents the thermodynamic parameters for the adsorption of SO on modified Senna fistula.…”

Section: Thermodynamicssupporting

confidence: 64%

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Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies

Ajaelu

Oyedele

Ikotun

et al. 2022

J. Nig. Soc. Phys. Sci.

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The availability of potable water has decreased in recent times due to the extensive discharge of effluents from some industries. This contaminated water poses a great danger to both human and aquatic life. Senna fistula was activated using phosphoric acid, H3PO4 and its ability to remove Safranin O from aqueous solution was investigated. The characterization of Senna fistula activated carbon was done by Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy. The impacts of pH, initial dye concentration, contact time, and effect of temperature were investigated. Results showed that the optimum pH for the removal of Safranin O was 4.4. The adsorption capacity increased as the initial dye concentration increased from 30 - 130 mg/L. The dye adsorption equilibrium data were properly fitted to both Freundlich and Langmuir isotherms. The maximum uptake capacity for Safranin O was 22.1 mg/g. The kinetic studies indicated rapid sorption dynamics via a second-order kinetic model. The thermodynamic parameter shows that the sorption of Safranin O on Senna fistula activated carbon was feasible, spontaneous and endothermic. Senna fistula-activated carbon was found to be cheap and efficient adsorbents for the removal of Safranin O dye from aqueous solutions.

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Section: Thermodynamicssupporting

confidence: 64%

“…The use of agricultural waste material (biosorbent) is the cheapest form of adsorbent, for it has zero cost to acquire. Some of the biosorbents used to remove dyes include coconut husk [7] African Border Tree [8], oil palm fruit [9,10], watermelon rinds [11], okra [12], maize stuck, teak leaf [13], sugarcane bargass [14].…”

Section: Introductionmentioning

confidence: 99%

Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies

Ajaelu

Oyedele

Ikotun

et al. 2022

J. Nig. Soc. Phys. Sci.

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“…Haddad et al [ 63 ] reported the removal of 87% of SO using mussel shells at a concentration of 0.02 g L −1 . Similarly, Ajaelu et al [ 64 ] used Newbouldia laevis tree bark at a concentration of 0.02 g L −1 and obtained a 92% removal rate for SO dye. Thus, the use of okara to remove SO yielded better results than those obtained in previous studies.…”

Section: Resultsmentioning

confidence: 99%

“…Ekka et al [87] studied the efficiency of a silica nanocomposite coated with titanium oxide for the removal of SO and obtained five regeneration cycles. Shariati et al [7] obtained eight regeneration cycles using iron oxide nanoparticles modified with sodium sulphate for [88] Rice husks 178.1 303 K Vasanth Kumar and Sivanesan [74] Beet pulp 147 298 K Malekbala et al [89] Calcined mussel shells 107.8 298 K Haddad et al [63] Border tree (Newbouldia laevis) 90.9 308 K Ajaelu et al [64] Modified red mud 89.4 303 K Sahu et al [90] Activated carbon and rice husks 72.08 308 K Gupta et al [62] Spirulina sp. 54.05 298 K Uyar et al [86] Pineapple peels 21.7 308 K Mahamad et al [91] T A B L E 7 Thermodynamic parameters of methylene blue (MB) and safranin orange (SO).…”

Section: Regeneration Studymentioning

confidence: 99%

Removal of methylene blue and safranin orange pollutants from liquid effluents by soy residue

et al. 2023

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Methylene blue and safranin orange dyes, which are used in the textile and pharmaceutical industries, can severely damage the environment and human health. This study investigated the use of okara residue as an alternative biosorbent for the removal of methylene blue and safranin orange dyes. Substantial amounts of okara residue are generated daily during the processing of soy milk in the agro‐industrial sector. Dye adsorption was not affected by pH. An adsorption study identified the optimal experimental conditions as: 298 K, 0.03 g of adsorbent in 30 mL of dye solution at a concentration of 50 mg L−1, and a contact time of 300 min for methylene blue dye, and 298 K, 0.02 g of adsorbent in 30 mL of dye solution at a concentration of 50 mg L−1, and a contact time of 200 min for safranin orange dye; the maximum adsorption capacities were 93.201 ± 0.01 and 184 592 ± 0.02 mg g−1, respectively. Okara has considerable advantages over other natural materials as an alternative for the treatment of industrial effluents. Because it is easily obtained and does not require any physicochemical treatment, adsorption does not require any specific operation temperature. In addition, okara exhibited a high adsorption capacity compared to other natural materials that require chemical and physical processing for adsorbent preparation.

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“…Numerous investigations have been conducted in this area [40]. Eucalyptus [41,42], flamboyant pod [43], African border [44], pine [45], Sycamore [46], Azollapinnata [47], and many more plant species are among those researched. Plant barks can be used as adsorbents for water treatment because they are inexpensive and have a number of other benefits as well.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Methyl Red Dye by Using Bark of Hopbush

Gul

Kanwal

Qazi

et al. 2022

Water

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Methyl red (MR) dye, one of the azo dyes, is mutagenic and its persistence has negative effects on the environment and people’s health. The current work is the first to demonstrate that methyl red dye can be removed effectively and sustainably, utilizing biomass derived from the bark of the Dodonaea viscosa (Hopbush) plant. The Hopbush bark shows effective adsorption of MR, upto 73%, under optimized conditions in an aqueous medium. The experimental conditions were optimized by examining the effect of time, initial dye concentration, pH and ionic strength on the adsorption process in an aqueous medium. Maximum (i.e., 73%) adsorption of MR removal (500 ppm) was observed in highly acidic conditions (pH = 1) at a contact time of 75 min. The pseudo-second-order kinetic model and Freundlich adsorption isotherm appeared to be the most appropriate for characterizing the MR’s adsorption onto the bark of the D. viscosa plant. Furthermore, it was shown that bark powder outperformed animal charcoal, silica gel, and powdered flowers, as well as the leaves of the same species, in terms of adsorption capacity. Thus, a natural adsorbent that is inexpensive and readily available—the bark of the D. viscosa plant—can be used to effectively remove harmful dyes from contaminated water and protect water resources from harmful pollutants.

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Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (<i>Newbouldia laevis</i>) bark

Cited by 10 publications

References 10 publications

Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies

Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies

Removal of methylene blue and safranin orange pollutants from liquid effluents by soy residue

Efficient Removal of Methyl Red Dye by Using Bark of Hopbush

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