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Cited by 64Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsAdvanced oxidation water treatment

Enhanced adsorption of phenol from aqueous solution by KOH combined Fe-Zn bimetallic oxide co-pyrolysis biochar: Fabrication, performance, and mechanism

Pei, Tao, Shi, Feng, Hou, Defa, Yang, Fulin, Lu, Yi, Liu, Can, Lin, Xu, Lu, Yanling +2 more·2023·Bioresource Technology
DOI 10.1016/j.biortech.2023.129746
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Abstract

In this study, impregnation combined with KOH activation with different mixing methods was used to prepare magnetic biochar. The effects of synthetic method on biochar physicochemical properties and adsorption performance were explored. The results showed that treatment of a Fe-Zn oxide with KOH activation provided excellent adsorption properties with adsorption capacity of 458.90 mg/g due to well-developed microporous structure and rich-in O-containing functional groups as well as exposed oxidizing functional groups (Fe 2 O 3 and FeOOH). Langmuir-Freundlich and pseudo-second-order models accurately fit phenol adsorption. Neutral conditions (pH = 6) and lower ionic strengths were beneficial to phenol removal. Additionally, the predominant adsorption processes were physisorption and chemisorption. Correlation analyses and characterization data confirmed that pore filling, π-π interactions and surface complexation were the dominant driving forces for phenol adsorption. This research provides an environmentally friendly method for utilizing agricultural wastes for the removal of a variety of pollutions from aquatic environment.

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Crossref · 10.1016/j.biortech.2023.129746

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  • Recent studies have demonstrated phenol adsorption capacities up to 458.9 mg/g for KOH-activated magnetic Fe-Zn biochar under optimized conditions (pH 6, 25°C, initial phenol 100 mg/L, dosage 0.5 g/L, contact time 480 min).

    “Under optimized conditions (pH 6, temperature 25 • C, initial phenol concentration 100 mg/L, biochar dosage 0.5 g/L of solution, contact time 480 min), adsorption capacities up to 458.9 mg/g were obtained [22].”

    From Innovative Valorization of Wood Panel Waste into Activated Biochar for Efficient Phenol Adsorption (2025) · cites this paper as [22]

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Authors
Pei, T., Shi, F., Hou, D., Yang, F., Lu, Y., Liu, C., Lin, X., Lu, Y., Zheng, Z., & Zheng, Y.
Affiliations
  • Southwest Forestry University (CN)
  • Xiamen University (CN)
Corresponding author
  • Zheng, Zhifeng
  • Zheng, Yunwu
ORCID
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2023-11
Volume
388
Pages
129746
ISSN
0960-8524 (ISSN-L)
DOI
10.1016/j.biortech.2023.129746
OpenAlex
W4386527896
Cited by
64
References
1
Citations by year
2026: 20 · 2025: 21 · 2024: 23
FWCI
5.12
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (31670599, 31870570)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
Keywords
phenol adsorption, magnetic biochar, KOH activation, impregnation, co-pyrolysis, agricultural waste utilization, adsorption mechanism, surface complexation, π-π stacking, pore filling, Fe2O3, iron oxyhydroxide, wastewater treatment
MeSH terms
Pyrolysis, Adsorption, Charcoal, Hydrogen-Ion Concentration, Hydroxides, Iron, Kinetics, Oxides, Solutions, Water, Water Pollutants, Chemical, Zinc, Potassium Compounds, Water Purification, Phenol

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