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Evaluation of Biosorptive Capacity of Banana (Musa paradisiaca) Stalk for Lead(II) Removal from Aqueous Solution
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Raw Banana Stalk (RBS), Acid Activated Banana Stalk (AABS) and Base Activated Banana Stalk (BABS) prepared from banana stalk were used as biosorbents to remove Lead(II) from aqueous solution. The biosorbents were characterised using proximate analysis and Fourier Transform Infrared (FTIR) spectroscopy. Pb(II) of 1000 mg/L concentration was prepared from Pb(NO3)2 salt and other concentrations were obtained from this stock through serial dilution. Effects of adsorbent dose, temperature, initial metal concentration, contact time and pH on the percentage Pb(II) removal were evaluated. The Pb(II) concentrations in the solutions were analysed using Atomic Absorption Spectrophotometer. Kinetic, isotherm and thermodynamic parameters were determined. FTIR spectroscopy showed that RBS, AABS and BABS are rich in carboxyl, hydroxyl and phenolic functional groups. At an equilibrium time of 180 minutes, the percentage Pb(II) removal was 63.97%, 96.13% and 66.90% for RBS, AABS and BABS, respectively. Pseudo-second order kinetics best described the process with R2 (0.95, 0.98, 0.97) for RBS, AABS and BABS, respectively. Langmuir isotherm (AABS) has the maximum adsorption capacity (qmax) of 13.53 mg/g and R2 (0.99). Thermodynamic parameters obtained were △G0 (?18.75 kJ/mol), △H0 (12.63 kJ/mol), △S0 (0.05 kJ/mol·K) and Ea (4.37 kJ/mol). Banana stalk has viable characteristics for preparing biosorbents. Acid activated banana biosorbent is more efficient for removal of lead ions from its aqueous solution.
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Banana plant stalk can be used to manufacture bio-sorbents like acid-activated banana stalk, base-activated banana stalk, and raw banana stalk, which are used to adsorb lead (III) from aqueous solutions.
“Banana plant stalk can be used to manufacture bio-sorbents like acid-activated banana stalk, base-activated banana stalk, and raw banana stalk, which are used to adsorb lead (III) from aqueous solutions [112].”
From Potential Valorization of Banana Production Waste in Developing Countries: Bio-Engineering Aspects (2024) · cites this paper as [112]
Section 2.1 describes preparing raw, acid-activated, and base-activated banana-stalk biosorbents. Section 4 reports their use to adsorb Pb(II) from aqueous solution, not lead(III) as the citing sentence states. (LLM, conf=0.90)
Experimental — accuracy not yet measuredPulp from banana fiber can be bleached using Trichoderma and Pythium fungi treatment for 3-5 days; these fungi break bonds between ligno-cellulosic complexes, causing lignin and hemicelluloses to be removed, increasing brightness and softness and making pulping easier.
“Then, the pulp is bleached using Trichoderma and Pythium fungi treatment for 3-5 days. These fungi break bonds between lingo-cellulosic complexes, causing lignin and hemicelluloses to be removed from the matrix. This whole process contributes to the increased brightness and softness of the final product and makes pulping easier.”
From Potential Valorization of Banana Production Waste in Developing Countries: Bio-Engineering Aspects (2024) · cites this paper as [112]
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Utilization of banana waste as a resource material for biofuels and other value-added products
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Potential Valorization of Banana Production Waste in Developing Countries: Bio-Engineering Aspects
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“Banana plant stalk can be used to manufacture bio-sorbents like acid-activated banana stalk, base-activated banana stalk, and raw banana stalk, which are used to adsorb lead (III) from aqueous solutions [112].”
Metadata
- Authors
- Ogunleye, O. O., Ajala, M. A., & Agarry, S. E.
- Affiliations
- Ladoke Akintola University of Technology (NG)
- Corresponding author
- Ogunleye, Oladipupo O.
- Venue
- Journal of Environmental Protection
- Publisher
- Scientific Research Publishing, Inc.
- Published
- 2014
- Volume
- 05
- Issue
- 15
- Pages
- 1451-1465
- ISSN
- 2152-2197 (ISSN-L)
- 2152-2219
- OpenAlex
- W1967274526
- Cited by
- 48
- References
- 49
- Citations by year
- 2026: 3 · 2025: 3 · 2024: 8 · 2023: 7 · 2022: 5 · 2021: 5 · 2020: 7 · 2019: 1 · 2018: 3 · 2017: 2 · 2016: 2 · 2015: 2
- FWCI
- 1.52
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Locations
- Journal of Environmental Protection (publishedVersion, cc-by)
- Funders
- Division of Chemistry
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Environmental Science › Water Science and Technology › Heavy Metal Pollution Remediation
- Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
- Keywords
- lead removal, biosorption, banana stalk, biosorbent, acid activation, base activation, heavy metal adsorption, adsorption kinetics, pseudo-second-order kinetics, Langmuir isotherm, adsorption thermodynamics, agricultural waste valorization, wastewater treatment
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