Cited by 133Adsorption and biosorption for pollutant removalThermochemical Biomass Conversion ProcessesEnvironmental remediation with nanomaterials

Adsorption mechanism and effectiveness of phenol and tannic acid removal by biochar produced from oil palm frond using steam pyrolysis

Lawal, Abubakar Abdullahi, Hassan, Mohd Ali, Ahmad Farid, Mohamed Abdillah, Tengku Yasim-Anuar, Tengku Arisyah, Samsudin, Mohd Hafif, Mohd Yusoff, Mohd Zulkhairi, Zakaria, Mohd Rafein, Mokhtar, Mohd Noriznan +1 more·2021·Environmental Pollution

Abstract

In order to meet the growing demand for adsorbents to treat wastewater effectively, there has been increased interest in using sustainable biomass feedstocks. In this present study, the dermal tissue of oil palm frond was pyrolyzed with superheated steam at 500 °C to produce nanoporous biochar as bioadsorbent. The effect of operating conditions was investigated to understand the adsorption mechanism and to enhance the adsorption of phenol and tannic acid. The biochar had a microporous structure with a Brunauer-Emmett-Teller surface area of 422 m 2/g containing low polar groups. The adsorption capacity of 62.89 mg/g for phenol and 67.41 mg/g for tannic acid were obtained using 3 g/L biochar dosage after 8 h of treatment at solution pH of 6.5 and temperature of 45 °C. The Freundlich model had the best fit to the isotherm data of phenol (R 2 of 0.9863), while the Langmuir model best elucidated the isotherm data of tannic acid (R 2 of 0.9632). These indicated that the biochar-phenol interface was associated with a heterogeneous multilayer sorption mechanism, while the biochar-tannic acid interface had a nonspecific monolayer sorption mechanism. The residual concentration of 26.3 mg/L phenol and 23.1 mg/L tannic acid was achieved when treated from 260 mg/L three times consecutively with 1 g/L biochar dosage, compared to a reduction to 72.3 mg/L phenol and 69.9 mg/L tannic acid using 3 g/L biochar dosage in a single treatment. The biochar exhibited effective adsorption of phenol and tannic acid, making it possible to treat effluents that contain varieties of phenolic compounds.

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Crossref · 10.1016/j.envpol.2020.116197

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  • Lawal et al. (2021) biochar made from oil palm leaves by steam pyrolysis reached an adsorption capacity of 62.89 mg/g for phenol and was well fitted with the Freundlich model (R2 = 0.9863).

    “Lawal etal. (2021) used BC made from oil palm leaves by steam pyrolysis to remove phenol; the adsorption capacity reached 62.89mg/g for phenol and was well fitted with the Freundlich model ( R 2 = 0.9863)”

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Authors
Lawal, A. A., Hassan, M. A., Ahmad Farid, M. A., Tengku Yasim-Anuar, T. A., Samsudin, M. H., Mohd Yusoff, M. Z., Zakaria, M. R., Mokhtar, M. N., & Shirai, Y.
Affiliations
  • Universiti Putra Malaysia (MY)
  • Kyushu Institute of Technology (JP)
Corresponding author
Hassan, Mohd Ali
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2021-01
Volume
269
Pages
116197
ISSN
0269-7491 (ISSN-L)
OpenAlex
W3112544394
Cited by
133
References
56
Citations by year
2026: 16 · 2025: 29 · 2024: 28 · 2023: 16 · 2022: 32 · 2021: 11 · 2018: 1
FWCI
4.53
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Pollution (publishedVersion)
  • PubMed (publishedVersion)
  • Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) (submittedVersion)
Funders
Ministry of Higher Education, Malaysia
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
biochar, oil palm fronds, steam pyrolysis, phenol adsorption, adsorption mechanism, Freundlich isotherm, Langmuir isotherm, biomass-derived adsorbents, wastewater treatment, phenolic compounds, adsorption capacity
MeSH terms
Pyrolysis, Adsorption, Charcoal, Kinetics, Phenols, Steam, Tannins, Water Pollutants, Chemical, Phenol

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