Sorption Study of Co (II), Cu(II) and Pb(II) ions Removal from Aqueous Solution by Adsorption on Flamboyant Flower (&lt;i&gt;Delonix &lt;/i&gt;&lt;i&gt;Regia&lt;/i&gt;)

Jimoh, T.; A, Iyaka Y.; M, Nubaye M.

doi:10.5923/j.chemistry.20120203.12

Cited by 13 publications

(2 citation statements)

References 13 publications

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“…The shift in peak bands and decrease in intensity after adsorption confirms the participation of the functional groups in the interaction with ARVDs, which resulted in their removal from wastewater. A weak vibration at 1727 cm −1 and 1730 cm −1 (Figure 1a and b) showed a carbonyl functional group (Jimoh et al, 2012). The presence of the peak at 1433 cm −1 and 1512 cm −1 (Figure 1 b) is ascribed to CO, OH, and COH functional groups, which shifted to 1426 and 1507 cm −1 after adsorption.…”

Section: Resultsmentioning

confidence: 98%

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Removal of antiretroviral drugs from wastewater using activated macadamia nutshells: Adsorption kinetics, adsorption isotherms, and thermodynamic studies

Simelane,

Mahlambi,

Rochat

et al. 2024

Water Environment Research

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Antiretroviral drugs (ARVDs) have been extensively employed in health care to improve the quality of life and lifecycle longevity. However, overuse and improper disposal of ARVDs have been recognized as an emerging concern whereby wastewater treatment major recipients. Therefore, in this work, the activated macadamia nutshells (MCNs) were explored as low‐cost adsorbents for the removal of ARVDs in wastewater samples. Fourier transform infrared spectroscopy (FTIR), Scanning Electron microscopy (SEM), Brunauer–Emmet–Teller (BET), and Powder X‐ray diffraction (PXRD). The highest removal efficiency (R.E) was above 86% for the selected analytes nevirapine, abacavir, and efavirenz. The maximum adsorption capacity of the functionalized MCN adsorbent was 10.79, 27.44, and 38.17 mg/g for nevirapine, abacavir, and efavirenz for HCl‐modified adsorbent. In contrast, NaOH modified had adsorption capacities of 13.67, 14.25, and 20.79 mg/g. The FTIR showed distinct functional groups OH and CO, which facilitate the removal of selected ARVDs. From studying kinetics parameters, the pseudo‐second‐order (R2 = 0.990–0.996) was more dominant than the pseudo‐first‐order (R2 = 0.872–0.994). The experimental data was most fitted in the Freundlich model with (R2 close to 1). The thermodynamic parameters indicated that the adsorption process was spontaneous and exothermic. The study indicated that MCNs are an eco‐friendly, low‐cost, and effective adsorbent for the removal of nevirapine, abacavir, and efavirenz.Practitioner Points Modification macadamia nutshell with HCl and NaOH improved physio‐chemical properties that yielded high removal efficiency compared with raw macadamia nutshells. Modification of macadamia by HCl showed high removal efficiency, which could be attributed to high interaction such as H‐bonding that improves adsorption. The macadamia nutshell as an adsorbent showed so much robustness with regeneration studies yielding to about 69.64% of selected compounds.

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Section: Resultsmentioning

confidence: 98%

“…Once the optimum was reached, there was a gradual decrease in removal efficiency, specifically in the basic pH. The NaOH‐modified adsorbent has a high dominance of OH ions as a result of may experience the hydrophobic interactions especially at basic pH of 8 to 10 units (Al‐Degs et al, 2008; Jimoh et al, 2012; Netpradit et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

Removal of antiretroviral drugs from wastewater using activated macadamia nutshells: Adsorption kinetics, adsorption isotherms, and thermodynamic studies

Simelane,

Mahlambi,

Rochat

et al. 2024

Water Environment Research

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Efficiency of may flower seed carbon to uptake Fe (II) from aqueous solution: Kinetic and isotherm studies

Shanmughaprabha¹,

Sasireka²,

Selvakumari³

2018

Env Prog and Sustain Energy

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This study dealt with preparation and efficient utilization of may flower seed carbon (MFSC) to adsorb Fe (II) from aqueous solution. Batch experiments were conducted to analyze the impact of adsorption parameters viz, contact time, initial metal ion concentration, adsorbent dose and pH on adsorption process. The results revealed that iron removal increased gradually up to a maximum of 99.52% and removal attains maximum at 80 min. Complete removal of Fe (II) was observed at a dosage of 100 mg/50 mL of pH 6 and 80 min contact time. Experimental data were fitted with Langmuir, Freundlich and Dubinin –Radushkevich (D‐R) isotherm models and was observed to be better explained by Langmuir adsorption model. The monolayer adsorption was 49.75 mg g−1 of Fe (II) on MFSC and the adsorption process followed Pseudo second order kinetics; regeneration of carbon was possible with 0.3 M HCl. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S243–S249, 2019

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Removal behavior and mechanism of Co(II) on the surface of Fe–Mn binary oxide adsorbent

Jiang

Xiao

Chen

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Sorption Study of Co (II), Cu(II) and Pb(II) ions Removal from Aqueous Solution by Adsorption on Flamboyant Flower (<i>Delonix </i><i>Regia</i>)

Cited by 13 publications

References 13 publications

Removal of antiretroviral drugs from wastewater using activated macadamia nutshells: Adsorption kinetics, adsorption isotherms, and thermodynamic studies

Removal of antiretroviral drugs from wastewater using activated macadamia nutshells: Adsorption kinetics, adsorption isotherms, and thermodynamic studies

Efficiency of may flower seed carbon to uptake Fe (II) from aqueous solution: Kinetic and isotherm studies

Removal behavior and mechanism of Co(II) on the surface of Fe–Mn binary oxide adsorbent

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